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Homebrew/framework install scheme not honored for scripts #152

Closed
alexreg opened this issue May 8, 2022 · 26 comments · Fixed by #155 or pypa/setuptools#3430
Closed

Homebrew/framework install scheme not honored for scripts #152

alexreg opened this issue May 8, 2022 · 26 comments · Fixed by #155 or pypa/setuptools#3430
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@jaraco
Labels
bug Something isn't working Needs Triage
Milestone
Support platform-...

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@alexreg
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alexreg commented May 8, 2022

setuptools version

60.10.0

Python version

3.9.12

OS

macOS 12.3.1

Additional environment information

Uses python formula from macOS Homebrew.

Description

Installing a package with console scripts defined using python setup.py develop does not actually install the console scripts. (It works with python setup.py install, however.)

This issue was previously discussed on the pypa/pip repo.

Expected behavior

Setuptools should install console script in the appropriate place.

How to Reproduce

  1. Create the following files.

setup.py

from setuptools import setup

setup(
    entry_points = {
        'console_scripts': [
            'foo = foopackage:main',
        ],
    }
)

foopackage/__init__.py

def main():
    print("foo")
  1. Run python setup.py develop.

Output

/opt/homebrew/lib/python3.9/site-packages/setuptools/command/easy_install.py:144: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/opt/homebrew/lib/python3.9/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
running egg_info
creating foopackage.egg-info
writing foopackage.egg-info/PKG-INFO
writing dependency_links to foopackage.egg-info/dependency_links.txt
writing entry points to foopackage.egg-info/entry_points.txt
writing top-level names to foopackage.egg-info/top_level.txt
writing manifest file 'foopackage.egg-info/SOURCES.txt'
listing git files failed - pretending there aren't any
reading manifest file 'foopackage.egg-info/SOURCES.txt'
writing manifest file 'foopackage.egg-info/SOURCES.txt'
running build_ext
Creating /opt/homebrew/lib/python3.9/site-packages/foopackage.egg-link (link to .)
foopackage 0.0.0 is already the active version in easy-install.pth
Installing foo script to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin

Installed /Users/alex/foo
Processing dependencies for foopackage==0.0.0
Finished processing dependencies for foopackage==0.0.0
@alexreg alexreg added bug Something isn't working Needs Triage labels May 8, 2022
@abravalheri
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Contributor

Hi @alexreg, thanks for reporting that.

Unfortunately this error seems to be macOS specific, so I will not be able to help you debug it directly (since I don't have access to a macOS environment).

Something that might give us a hint of what is happening is the line foopackage 0.0.0 is already the active version in easy-install.pth. Have you tried to run this in an isolated virtual environment?

It also says Installing foo script to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin, Have you checked if the foo script exist in that folder? If that is the case the problem is likely to be related to a misalignment between the homebrew version of distutils/sysconfig and the expectations in setuptools.

If that is not the case what is the folder you expect the script to be installed to?

@abravalheri
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Another question (just to verify if the problem is fixed in newer versions of setuptools): does the problem still persists if you: update setuptools to the latest version?

@alexreg
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alexreg commented May 9, 2022

Hi @abravalheri. Oddly enough, I'm getting setuptools reporting version 62.1.0 now. Perhaps it upgraded in the background in the meanwhile.

Indeed, the foo script exists in /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin. I suppose the problem is that this is the wrong place?

Perhaps the problem is that this is the wrong location? Or something goes awry with the interaction with pip? The way I first encountered this was that pip install works but pip install -e does not.

@abravalheri
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abravalheri commented May 10, 2022 •
edited
Loading

🤔 that is going to be tricky to track down :P, I will see if I can have a look on this weekend.

While pip install . does its own thing, pip install -e. delegates to python setup.py develop, which is also different from python setup.py install. So there are 3 installation methods.

The fact that python setup.py install works is promising... Now what we need to do is scrutinizing the code to see how they come up with 2 different locations for the installation directory.

I just hope that the fact that python setup.py install is not working by accident, because Homebrew does seem to customize Python's directories in https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/python@3.9.rb#L375.

@alexreg could you show us what are the values you are getting in your machine for the following?

sys.prefix
sys.exec_prefix
sys.base_prefix
sys.base_exec_prefix

The output of `python -m sysconfig` (before variables) (or the values of `sysconfig.get_paths()`)

distutils.sysconfig.get_config_vars()

@alexreg
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alexreg commented May 10, 2022 •
edited by jaraco
Loading

@abravalheri Thanks for looking into this.

Actually, I should clarify: it seems like python setup.py install and python setup.py develop both work in the sense they write the console script to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin. However, pip install writes it to /opt/homebrew/bin, which is really where it should go, whereas (I just checked), pip install -e writes it to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin.

Here's the output you asked for:

python 3.9.12 (main, Mar 26 2022, 15:44:31) 
[Clang 13.1.6 (clang-1316.0.21.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print(sys.prefix)
/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9
>>> print(sys.exec_prefix)
/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9
>>> print(sys.base_prefix)
/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9
>>> print(sys.base_exec_prefix)
/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9
>>> import distutils
>>> print(distutils.sysconfig.get_config_vars())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'distutils' has no attribute 'sysconfig'
$ python3 -m sysconfig
Platform: "macosx-12-arm64"
Python version: "3.9"
Current installation scheme: "posix_prefix"

Paths: 
        data = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        include = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9"
        platinclude = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9"
        platlib = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages"
        platstdlib = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"
        purelib = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages"
        scripts = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin"
        stdlib = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"

Variables: 
        ABIFLAGS = ""
        AC_APPLE_UNIVERSAL_BUILD = "0"
        AIX_BUILDDATE = "0"
        AIX_GENUINE_CPLUSPLUS = "0"
        ALT_SOABI = "0"
        ANDROID_API_LEVEL = "0"
        AR = "/usr/bin/xcrun ar"
        ARFLAGS = "rcs"
        BASECFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic"
        BASECPPFLAGS = ""
        BASEMODLIBS = ""
        BINDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin"
        BINLIBDEST = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"
        BLDLIBRARY = ""
        BLDSHARED = "clang -bundle -undefined dynamic_lookup -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        BUILDEXE = ".exe"
        BUILDPYTHON = "python.exe"
        BUILD_GNU_TYPE = "aarch64-apple-darwin21.3.0"
        BYTESTR_DEPS = "\"
        CC = "clang"
        CCSHARED = ""
        CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        CFLAGSFORSHARED = ""
        CFLAGS_ALIASING = "-fno-strict-aliasing"
        CONFIGFILES = "configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in"
        CONFIGURE_CFLAGS = "-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        CONFIGURE_CFLAGS_NODIST = "-I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden"
        CONFIGURE_CPPFLAGS = "-I/opt/homebrew/include"
        CONFIGURE_LDFLAGS = "-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        CONFIGURE_LDFLAGS_NODIST = "-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g"
        CONFIG_ARGS = "'--prefix=/opt/homebrew/opt/python@3.9' '--enable-ipv6' '--datarootdir=/opt/homebrew/opt/python@3.9/share' '--datadir=/opt/homebrew/opt/python@3.9/share' '--without-ensurepip' '--enable-loadable-sqlite-extensions' '--with-openssl=/opt/homebrew/opt/openssl@1.1' '--with-dbmliborder=gdbm:ndbm' '--enable-optimizations' '--with-lto' '--with-system-expat' '--with-system-ffi' '--with-system-libmpdec' '--enable-framework=/opt/homebrew/opt/python@3.9/Frameworks' '--with-dtrace' 'MACOSX_DEPLOYMENT_TARGET=12' 'CFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk' 'CFLAGS_NODIST=-I/opt/homebrew/include' 'LDFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk' 'LDFLAGS_NODIST=-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib' 'CPPFLAGS=-I/opt/homebrew/include' 'CC=clang' 'PKG_CONFIG_PATH=/opt/homebrew/opt/openssl@1.1/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/xz/lib/pkgconfig' 'PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/opt/homebrew/Library/Homebrew/os/mac/pkgconfig/12'"
        CONFINCLUDEDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include"
        CONFINCLUDEPY = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9"
        COREPYTHONPATH = ""
        COVERAGE_INFO = "/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12/coverage.info"
        COVERAGE_REPORT = "/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12/lcov-report"
        COVERAGE_REPORT_OPTIONS = "--no-branch-coverage --title "CPython lcov report""
        CPPFLAGS = "-I. -I./Include -I/opt/homebrew/include"
        CXX = "clang++"
        DESTDIRS = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9 /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9 /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/lib-dynload"
        DESTLIB = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"
        DESTPATH = ""
        DESTSHARED = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/lib-dynload"
        DFLAGS = ""
        DIRMODE = "755"
        DIST = "README.rst ChangeLog configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in Include Lib Misc Ext-dummy"
        DISTDIRS = "Include Lib Misc Ext-dummy"
        DISTFILES = "README.rst ChangeLog configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in"
        DLINCLDIR = "."
        DLLLIBRARY = ""
        DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 = "0"
        DOUBLE_IS_BIG_ENDIAN_IEEE754 = "0"
        DOUBLE_IS_LITTLE_ENDIAN_IEEE754 = "1"
        DTRACE = "/usr/sbin/dtrace"
        DTRACE_DEPS = "\"
        DTRACE_HEADERS = "Include/pydtrace_probes.h"
        DTRACE_OBJS = ""
        DYNLOADFILE = "dynload_shlib.o"
        ENABLE_IPV6 = "1"
        ENSUREPIP = "no"
        EXE = ""
        EXEMODE = "755"
        EXPORTSFROM = ""
        EXPORTSYMS = ""
        EXTRATESTOPTS = ""
        EXTRA_CFLAGS = ""
        EXT_SUFFIX = ".cpython-39-darwin.so"
        FILEMODE = "644"
        FLOAT_WORDS_BIGENDIAN = "0"
        FLOCK_NEEDS_LIBBSD = "0"
        GETPGRP_HAVE_ARG = "0"
        GITBRANCH = ""
        GITTAG = ""
        GITVERSION = ""
        GNULD = "no"
        HAVE_ACCEPT4 = "0"
        HAVE_ACOSH = "1"
        HAVE_ADDRINFO = "1"
        HAVE_ALARM = "1"
        HAVE_ALIGNED_REQUIRED = "0"
        HAVE_ALLOCA_H = "1"
        HAVE_ALTZONE = "0"
        HAVE_ASINH = "1"
        HAVE_ASM_TYPES_H = "0"
        HAVE_ATANH = "1"
        HAVE_BIND_TEXTDOMAIN_CODESET = "0"
        HAVE_BLUETOOTH_BLUETOOTH_H = "0"
        HAVE_BLUETOOTH_H = "0"
        HAVE_BROKEN_MBSTOWCS = "0"
        HAVE_BROKEN_NICE = "0"
        HAVE_BROKEN_PIPE_BUF = "0"
        HAVE_BROKEN_POLL = "0"
        HAVE_BROKEN_POSIX_SEMAPHORES = "0"
        HAVE_BROKEN_PTHREAD_SIGMASK = "0"
        HAVE_BROKEN_SEM_GETVALUE = "1"
        HAVE_BROKEN_UNSETENV = "0"
        HAVE_BUILTIN_ATOMIC = "1"
        HAVE_CHFLAGS = "1"
        HAVE_CHOWN = "1"
        HAVE_CHROOT = "1"
        HAVE_CLOCK = "1"
        HAVE_CLOCK_GETRES = "1"
        HAVE_CLOCK_GETTIME = "1"
        HAVE_CLOCK_SETTIME = "1"
        HAVE_COMPUTED_GOTOS = "1"
        HAVE_CONFSTR = "1"
        HAVE_CONIO_H = "0"
        HAVE_COPYSIGN = "1"
        HAVE_COPY_FILE_RANGE = "0"
        HAVE_CRYPT_H = "0"
        HAVE_CRYPT_R = "0"
        HAVE_CTERMID = "1"
        HAVE_CTERMID_R = "1"
        HAVE_CURSES_FILTER = "1"
        HAVE_CURSES_H = "1"
        HAVE_CURSES_HAS_KEY = "1"
        HAVE_CURSES_IMMEDOK = "1"
        HAVE_CURSES_IS_PAD = "0"
        HAVE_CURSES_IS_TERM_RESIZED = "1"
        HAVE_CURSES_RESIZETERM = "1"
        HAVE_CURSES_RESIZE_TERM = "1"
        HAVE_CURSES_SYNCOK = "1"
        HAVE_CURSES_TYPEAHEAD = "1"
        HAVE_CURSES_USE_ENV = "1"
        HAVE_CURSES_WCHGAT = "1"
        HAVE_DECL_ISFINITE = "1"
        HAVE_DECL_ISINF = "1"
        HAVE_DECL_ISNAN = "1"
        HAVE_DECL_RTLD_DEEPBIND = "0"
        HAVE_DECL_RTLD_GLOBAL = "1"
        HAVE_DECL_RTLD_LAZY = "1"
        HAVE_DECL_RTLD_LOCAL = "1"
        HAVE_DECL_RTLD_MEMBER = "0"
        HAVE_DECL_RTLD_NODELETE = "1"
        HAVE_DECL_RTLD_NOLOAD = "1"
        HAVE_DECL_RTLD_NOW = "1"
        HAVE_DECL_TZNAME = "0"
        HAVE_DEVICE_MACROS = "1"
        HAVE_DEV_PTC = "0"
        HAVE_DEV_PTMX = "1"
        HAVE_DIRECT_H = "0"
        HAVE_DIRENT_D_TYPE = "1"
        HAVE_DIRENT_H = "1"
        HAVE_DIRFD = "1"
        HAVE_DLFCN_H = "1"
        HAVE_DLOPEN = "1"
        HAVE_DUP2 = "1"
        HAVE_DUP3 = "0"
        HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH = "1"
        HAVE_DYNAMIC_LOADING = "1"
        HAVE_ENDIAN_H = "0"
        HAVE_EPOLL = "0"
        HAVE_EPOLL_CREATE1 = "0"
        HAVE_ERF = "1"
        HAVE_ERFC = "1"
        HAVE_ERRNO_H = "1"
        HAVE_EXECV = "1"
        HAVE_EXPLICIT_BZERO = "0"
        HAVE_EXPLICIT_MEMSET = "0"
        HAVE_EXPM1 = "1"
        HAVE_FACCESSAT = "1"
        HAVE_FCHDIR = "1"
        HAVE_FCHMOD = "1"
        HAVE_FCHMODAT = "1"
        HAVE_FCHOWN = "1"
        HAVE_FCHOWNAT = "1"
        HAVE_FCNTL_H = "1"
        HAVE_FDATASYNC = "0"
        HAVE_FDOPENDIR = "1"
        HAVE_FDWALK = "0"
        HAVE_FEXECVE = "0"
        HAVE_FINITE = "0"
        HAVE_FLOCK = "1"
        HAVE_FORK = "1"
        HAVE_FORKPTY = "1"
        HAVE_FPATHCONF = "1"
        HAVE_FSEEK64 = "0"
        HAVE_FSEEKO = "1"
        HAVE_FSTATAT = "1"
        HAVE_FSTATVFS = "1"
        HAVE_FSYNC = "1"
        HAVE_FTELL64 = "0"
        HAVE_FTELLO = "1"
        HAVE_FTIME = "1"
        HAVE_FTRUNCATE = "1"
        HAVE_FUTIMENS = "1"
        HAVE_FUTIMES = "1"
        HAVE_FUTIMESAT = "0"
        HAVE_GAI_STRERROR = "1"
        HAVE_GAMMA = "0"
        HAVE_GCC_ASM_FOR_MC68881 = "0"
        HAVE_GCC_ASM_FOR_X64 = "0"
        HAVE_GCC_ASM_FOR_X87 = "0"
        HAVE_GCC_UINT128_T = "1"
        HAVE_GETADDRINFO = "1"
        HAVE_GETC_UNLOCKED = "1"
        HAVE_GETENTROPY = "1"
        HAVE_GETGRGID_R = "1"
        HAVE_GETGRNAM_R = "1"
        HAVE_GETGROUPLIST = "1"
        HAVE_GETGROUPS = "1"
        HAVE_GETHOSTBYNAME = "1"
        HAVE_GETHOSTBYNAME_R = "0"
        HAVE_GETHOSTBYNAME_R_3_ARG = "0"
        HAVE_GETHOSTBYNAME_R_5_ARG = "0"
        HAVE_GETHOSTBYNAME_R_6_ARG = "0"
        HAVE_GETITIMER = "1"
        HAVE_GETLOADAVG = "1"
        HAVE_GETLOGIN = "1"
        HAVE_GETNAMEINFO = "1"
        HAVE_GETPAGESIZE = "1"
        HAVE_GETPEERNAME = "1"
        HAVE_GETPGID = "1"
        HAVE_GETPGRP = "1"
        HAVE_GETPID = "1"
        HAVE_GETPRIORITY = "1"
        HAVE_GETPWENT = "1"
        HAVE_GETPWNAM_R = "1"
        HAVE_GETPWUID_R = "1"
        HAVE_GETRANDOM = "0"
        HAVE_GETRANDOM_SYSCALL = "0"
        HAVE_GETRESGID = "0"
        HAVE_GETRESUID = "0"
        HAVE_GETSID = "1"
        HAVE_GETSPENT = "0"
        HAVE_GETSPNAM = "0"
        HAVE_GETWD = "1"
        HAVE_GLIBC_MEMMOVE_BUG = "0"
        HAVE_GRP_H = "1"
        HAVE_HSTRERROR = "1"
        HAVE_HTOLE64 = "0"
        HAVE_HYPOT = "1"
        HAVE_IEEEFP_H = "0"
        HAVE_IF_NAMEINDEX = "1"
        HAVE_INET_ATON = "1"
        HAVE_INET_PTON = "1"
        HAVE_INITGROUPS = "1"
        HAVE_INTTYPES_H = "1"
        HAVE_IO_H = "0"
        HAVE_IPA_PURE_CONST_BUG = "0"
        HAVE_KILL = "1"
        HAVE_KILLPG = "1"
        HAVE_KQUEUE = "1"
        HAVE_LANGINFO_H = "1"
        HAVE_LARGEFILE_SUPPORT = "0"
        HAVE_LCHFLAGS = "1"
        HAVE_LCHMOD = "1"
        HAVE_LCHOWN = "1"
        HAVE_LGAMMA = "1"
        HAVE_LIBDL = "1"
        HAVE_LIBDLD = "0"
        HAVE_LIBIEEE = "0"
        HAVE_LIBINTL_H = "0"
        HAVE_LIBREADLINE = "1"
        HAVE_LIBRESOLV = "0"
        HAVE_LIBSENDFILE = "0"
        HAVE_LIBUTIL_H = "0"
        HAVE_LIBUUID = "0"
        HAVE_LINK = "1"
        HAVE_LINKAT = "1"
        HAVE_LINUX_AUXVEC_H = "0"
        HAVE_LINUX_CAN_BCM_H = "0"
        HAVE_LINUX_CAN_H = "0"
        HAVE_LINUX_CAN_J1939_H = "0"
        HAVE_LINUX_CAN_RAW_FD_FRAMES = "0"
        HAVE_LINUX_CAN_RAW_H = "0"
        HAVE_LINUX_CAN_RAW_JOIN_FILTERS = "0"
        HAVE_LINUX_MEMFD_H = "0"
        HAVE_LINUX_NETLINK_H = "0"
        HAVE_LINUX_QRTR_H = "0"
        HAVE_LINUX_RANDOM_H = "0"
        HAVE_LINUX_TIPC_H = "0"
        HAVE_LINUX_VM_SOCKETS_H = "0"
        HAVE_LINUX_WAIT_H = "0"
        HAVE_LOCKF = "1"
        HAVE_LOG1P = "1"
        HAVE_LOG2 = "1"
        HAVE_LONG_DOUBLE = "1"
        HAVE_LSTAT = "1"
        HAVE_LUTIMES = "1"
        HAVE_MADVISE = "1"
        HAVE_MAKEDEV = "1"
        HAVE_MBRTOWC = "1"
        HAVE_MEMFD_CREATE = "0"
        HAVE_MEMORY_H = "1"
        HAVE_MEMRCHR = "0"
        HAVE_MKDIRAT = "1"
        HAVE_MKFIFO = "1"
        HAVE_MKFIFOAT = "0"
        HAVE_MKNOD = "1"
        HAVE_MKNODAT = "0"
        HAVE_MKTIME = "1"
        HAVE_MMAP = "1"
        HAVE_MREMAP = "0"
        HAVE_NCURSES_H = "1"
        HAVE_NDIR_H = "0"
        HAVE_NETPACKET_PACKET_H = "0"
        HAVE_NET_IF_H = "1"
        HAVE_NICE = "1"
        HAVE_NON_UNICODE_WCHAR_T_REPRESENTATION = "0"
        HAVE_OPENAT = "1"
        HAVE_OPENPTY = "1"
        HAVE_PATHCONF = "1"
        HAVE_PAUSE = "1"
        HAVE_PIPE2 = "0"
        HAVE_PLOCK = "0"
        HAVE_POLL = "1"
        HAVE_POLL_H = "1"
        HAVE_POSIX_FADVISE = "0"
        HAVE_POSIX_FALLOCATE = "0"
        HAVE_POSIX_SPAWN = "1"
        HAVE_POSIX_SPAWNP = "1"
        HAVE_PREAD = "1"
        HAVE_PREADV = "1"
        HAVE_PREADV2 = "0"
        HAVE_PRLIMIT = "0"
        HAVE_PROCESS_H = "0"
        HAVE_PROTOTYPES = "1"
        HAVE_PTHREAD_CONDATTR_SETCLOCK = "0"
        HAVE_PTHREAD_DESTRUCTOR = "0"
        HAVE_PTHREAD_GETCPUCLOCKID = "0"
        HAVE_PTHREAD_H = "1"
        HAVE_PTHREAD_INIT = "0"
        HAVE_PTHREAD_KILL = "1"
        HAVE_PTHREAD_SIGMASK = "1"
        HAVE_PTY_H = "0"
        HAVE_PWRITE = "1"
        HAVE_PWRITEV = "1"
        HAVE_PWRITEV2 = "0"
        HAVE_READLINK = "1"
        HAVE_READLINKAT = "1"
        HAVE_READV = "1"
        HAVE_REALPATH = "1"
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        HAVE_UTIME_H = "1"
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        HAVE_X509_VERIFY_PARAM_SET1_HOST = "1"
        HAVE_ZLIB_COPY = "1"
        HAVE__GETPTY = "0"
        HOST_GNU_TYPE = "aarch64-apple-darwin21.3.0"
        INCLDIRSTOMAKE = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9"
        INCLUDEDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include"
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        INSTALL_PROGRAM = "/usr/bin/install -c"
        INSTALL_SCRIPT = "/usr/bin/install -c"
        INSTALL_SHARED = "/usr/bin/install -c -m 755"
        INSTSONAME = "Python.framework/Versions/3.9/Python"
        IO_H = "Modules/_io/_iomodule.h"
        IO_OBJS = "\"
        LDCXXSHARED = "clang++ -bundle -undefined dynamic_lookup"
        LDFLAGS = "-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        LDLIBRARY = "Python.framework/Versions/3.9/Python"
        LDLIBRARYDIR = ""
        LDSHARED = "clang -bundle -undefined dynamic_lookup -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        LDVERSION = "3.9"
        LIBC = ""
        LIBDEST = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"
        LIBDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib"
        LIBFFI_INCLUDEDIR = "/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk/usr/include/ffi"
        LIBM = ""
        LIBOBJDIR = "Python/"
        LIBOBJS = ""
        LIBPC = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/pkgconfig"
        LIBPL = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/config-3.9-darwin"
        LIBPYTHON = ""
        LIBRARY = "libpython3.9.a"
        LIBRARY_OBJS = "\"
        LIBRARY_OBJS_OMIT_FROZEN = "\"
        LIBS = "-ldl   -framework CoreFoundation"
        LIBSUBDIRS = "tkinter tkinter/test tkinter/test/test_tkinter \"
        LINKCC = "clang"
        LINKFORSHARED = "-Wl,-stack_size,1000000  -framework CoreFoundation /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/Python"
        LIPO_32BIT_FLAGS = ""
        LIPO_INTEL64_FLAGS = ""
        LLVM_PROF_ERR = "no"
        LLVM_PROF_FILE = "LLVM_PROFILE_FILE="code-%p.profclangr""
        LLVM_PROF_MERGER = "/usr/bin/xcrun llvm-profdata merge -output=code.profclangd *.profclangr"
        LN = "ln"
        LOCALMODLIBS = ""
        MACHDEP = "darwin"
        MACHDEP_OBJS = ""
        MACHDESTLIB = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9"
        MACOSX_DEPLOYMENT_TARGET = "12"
        MAINCC = "clang"
        MAJOR_IN_MKDEV = "0"
        MAJOR_IN_SYSMACROS = "0"
        MAKESETUP = "./Modules/makesetup"
        MANDIR = "/opt/homebrew/opt/python@3.9/share/man"
        MKDIR_P = "./install-sh -c -d"
        MODBUILT_NAMES = "posix  errno  pwd  _sre  _codecs  _weakref  _functools  _operator  _collections  _abc  itertools  atexit  _signal  _stat  time  _thread  _locale  _io  faulthandler  _tracemalloc  _peg_parser  _symtable  xxsubtype"
        MODDISABLED_NAMES = ""
        MODLIBS = ""
        MODOBJS = "Modules/posixmodule.o  Modules/errnomodule.o  Modules/pwdmodule.o  Modules/_sre.o  Modules/_codecsmodule.o  Modules/_weakref.o  Modules/_functoolsmodule.o  Modules/_operator.o  Modules/_collectionsmodule.o  Modules/_abc.o  Modules/itertoolsmodule.o  Modules/atexitmodule.o  Modules/signalmodule.o  Modules/_stat.o  Modules/timemodule.o  Modules/_threadmodule.o  Modules/_localemodule.o  Modules/_iomodule.o Modules/iobase.o Modules/fileio.o Modules/bytesio.o Modules/bufferedio.o Modules/textio.o Modules/stringio.o  Modules/faulthandler.o  Modules/_tracemalloc.o  Modules/_peg_parser.o  Modules/symtablemodule.o  Modules/xxsubtype.o"
        MODULE_OBJS = "\"
        MULTIARCH = "darwin"
        MULTIARCH_CPPFLAGS = "-DMULTIARCH=\"darwin\""
        MVWDELCH_IS_EXPRESSION = "1"
        NO_AS_NEEDED = ""
        OBJECT_OBJS = "\"
        OPENSSL_INCLUDES = "-I/opt/homebrew/opt/openssl@1.1/include"
        OPENSSL_LDFLAGS = "-L/opt/homebrew/opt/openssl@1.1/lib"
        OPENSSL_LIBS = "-lssl -lcrypto"
        OPT = "-DNDEBUG -g -fwrapv -O3 -Wall"
        OTHER_LIBTOOL_OPT = ""
        PACKAGE_BUGREPORT = "0"
        PACKAGE_NAME = "0"
        PACKAGE_STRING = "0"
        PACKAGE_TARNAME = "0"
        PACKAGE_URL = "0"
        PACKAGE_VERSION = "0"
        PARSER_HEADERS = "\"
        PARSER_OBJS = "\ \ Parser/myreadline.o Parser/parsetok.o Parser/tokenizer.o"
        PEGEN_HEADERS = "\"
        PEGEN_OBJS = "\"
        PGO_PROF_GEN_FLAG = "-fprofile-instr-generate"
        PGO_PROF_USE_FLAG = "-fprofile-instr-use=code.profclangd"
        PLATLIBDIR = "lib"
        POBJS = "\"
        POSIX_SEMAPHORES_NOT_ENABLED = "0"
        PROFILE_TASK = "-m test --pgo"
        PTHREAD_KEY_T_IS_COMPATIBLE_WITH_INT = "0"
        PTHREAD_SYSTEM_SCHED_SUPPORTED = "1"
        PURIFY = ""
        PY3LIBRARY = ""
        PYLONG_BITS_IN_DIGIT = "0"
        PYTHON = "python"
        PYTHONFRAMEWORK = "Python"
        PYTHONFRAMEWORKDIR = "Python.framework"
        PYTHONFRAMEWORKINSTALLDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework"
        PYTHONFRAMEWORKPREFIX = "/opt/homebrew/opt/python@3.9/Frameworks"
        PYTHONPATH = ""
        PYTHON_FOR_BUILD = "./python.exe -E"
        PYTHON_HEADERS = "\"
        PYTHON_OBJS = "\"
        PY_BUILTIN_HASHLIB_HASHES = ""md5,sha1,sha256,sha512,sha3,blake2""
        PY_BUILTIN_MODULE_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include -DPy_BUILD_CORE_BUILTIN"
        PY_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        PY_CFLAGS_NODIST = "-I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal"
        PY_COERCE_C_LOCALE = "1"
        PY_CORE_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include -DPy_BUILD_CORE"
        PY_CORE_LDFLAGS = "-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g"
        PY_CPPFLAGS = "-I. -I./Include -I/opt/homebrew/include"
        PY_FORMAT_SIZE_T = ""z""
        PY_LDFLAGS = "-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk"
        PY_LDFLAGS_NODIST = "-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g"
        PY_SSL_DEFAULT_CIPHERS = "1"
        PY_SSL_DEFAULT_CIPHER_STRING = "0"
        PY_STDMODULE_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include"
        Py_DEBUG = "0"
        Py_ENABLE_SHARED = "0"
        Py_HASH_ALGORITHM = "0"
        Py_TRACE_REFS = "0"
        QUICKTESTOPTS = "-x test_subprocess test_io test_lib2to3 \"
        READELF = ":"
        RESSRCDIR = "Mac/Resources/framework"
        RETSIGTYPE = "void"
        RUNSHARED = "DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12"
        SCRIPTDIR = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib"
        SETPGRP_HAVE_ARG = "0"
        SHELL = "/bin/sh"
        SHLIBS = "-ldl   -framework CoreFoundation"
        SHLIB_SUFFIX = ".so"
        SHM_NEEDS_LIBRT = "0"
        SIGNED_RIGHT_SHIFT_ZERO_FILLS = "0"
        SITEPATH = ""
        SIZEOF_DOUBLE = "8"
        SIZEOF_FLOAT = "4"
        SIZEOF_FPOS_T = "8"
        SIZEOF_INT = "4"
        SIZEOF_LONG = "8"
        SIZEOF_LONG_DOUBLE = "8"
        SIZEOF_LONG_LONG = "8"
        SIZEOF_OFF_T = "8"
        SIZEOF_PID_T = "4"
        SIZEOF_PTHREAD_KEY_T = "8"
        SIZEOF_PTHREAD_T = "8"
        SIZEOF_SHORT = "2"
        SIZEOF_SIZE_T = "8"
        SIZEOF_TIME_T = "8"
        SIZEOF_UINTPTR_T = "8"
        SIZEOF_VOID_P = "8"
        SIZEOF_WCHAR_T = "4"
        SIZEOF__BOOL = "1"
        SO = ".cpython-39-darwin.so"
        SOABI = "cpython-39-darwin"
        SRCDIRS = "Parser Parser/pegen Objects Python Modules Modules/_io Programs"
        SRC_GDB_HOOKS = "./Tools/gdb/libpython.py"
        STDC_HEADERS = "1"
        STRICT_SYSV_CURSES = "/* Don't use ncurses extensions */"
        STRIPFLAG = "-s"
        SUBDIRS = ""
        SUBDIRSTOO = "Include Lib Misc"
        SYSLIBS = ""
        SYS_SELECT_WITH_SYS_TIME = "1"
        TCLTK_INCLUDES = ""
        TCLTK_LIBS = ""
        TESTOPTS = ""
        TESTPATH = ""
        TESTPYTHON = "DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12 ./python.exe"
        TESTPYTHONOPTS = ""
        TESTRUNNER = "DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12 ./python.exe ./Tools/scripts/run_tests.py"
        TESTTIMEOUT = "1200"
        TIMEMODULE_LIB = "0"
        TIME_WITH_SYS_TIME = "1"
        TM_IN_SYS_TIME = "0"
        TZPATH = "/usr/share/zoneinfo:/usr/lib/zoneinfo:/usr/share/lib/zoneinfo:/etc/zoneinfo"
        UNICODE_DEPS = "\"
        UNIVERSALSDK = ""
        UPDATE_FILE = "python3 ./Tools/scripts/update_file.py"
        USE_COMPUTED_GOTOS = "0"
        VERSION = "3.9"
        WINDOW_HAS_FLAGS = "1"
        WITH_DECIMAL_CONTEXTVAR = "1"
        WITH_DOC_STRINGS = "1"
        WITH_DTRACE = "1"
        WITH_DYLD = "1"
        WITH_LIBINTL = "0"
        WITH_NEXT_FRAMEWORK = "1"
        WITH_PYMALLOC = "1"
        WITH_VALGRIND = "0"
        X87_DOUBLE_ROUNDING = "0"
        XMLLIBSUBDIRS = "xml xml/dom xml/etree xml/parsers xml/sax"
        abiflags = ""
        abs_builddir = "/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12"
        abs_srcdir = "/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12"
        base = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        datarootdir = "/opt/homebrew/opt/python@3.9/share"
        exec_prefix = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        installed_base = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        installed_platbase = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        platbase = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        platlibdir = "lib"
        prefix = "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
        projectbase = "/opt/homebrew/Cellar/python@3.9/3.9.12/Frameworks/Python.framework/Versions/3.9/bin"
        py_version = "3.9.12"
        py_version_nodot = "39"
        py_version_short = "3.9"
        srcdir = "/opt/homebrew/Cellar/python@3.9/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/config-3.9-darwin"
        userbase = "/Users/alex/Library/Python/3.9"

@abravalheri
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Thank you very much @alexreg for the information.

Actually, I should clarify: it seems like python setup.py install and python setup.py develop both work in the sense they write the console script to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin.

Ok, thanks for checking that.

This makes things more complicated, since it is not a simple matter of aligning install and develop. Based on the extra info that you provided, it would seem that Homebrew actually wants setuptools to install files into /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin (as indicated by the output of python3 -m sysconfig under Paths > scripts). This is also compatible with the values of sys.*prefix.

It might be the case there are multiple sources of conflicting information. So we have to find out what pip is doing here to understand the problem.

The error with distutils.sysconfig is probably because it needs an extra import distutils.sysconfig.

@alexreg
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alexreg commented May 12, 2022 •
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Ah yes, of course. Here's the output of that too.

>>> print(distutils.sysconfig.get_config_vars())
{'prefix': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'exec_prefix': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'py_version': '3.9.12', 'py_version_short': '3.9', 'py_version_nodot': '39', 'installed_base': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'base': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'installed_platbase': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'platbase': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9', 'projectbase': '/opt/homebrew/Cellar/python@3.9/3.9.12/Frameworks/Python.framework/Versions/3.9/bin', 'platlibdir': 'lib', 'abiflags': '', 'ABIFLAGS': '', 'AC_APPLE_UNIVERSAL_BUILD': 0, 'AIX_BUILDDATE': 0, 'AIX_GENUINE_CPLUSPLUS': 0, 'ALT_SOABI': 0, 'ANDROID_API_LEVEL': 0, 'AR': '/usr/bin/xcrun ar', 'ARFLAGS': 'rcs', 'BASECFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic', 'BASECPPFLAGS': '', 'BASEMODLIBS': '', 'BINDIR': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin', 'BINLIBDEST': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9', 'BLDLIBRARY': '', 'BLDSHARED': 'clang -bundle -undefined dynamic_lookup -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'BUILDEXE': '.exe', 'BUILDPYTHON': 'python.exe', 'BUILD_GNU_TYPE': 'aarch64-apple-darwin21.3.0', 'BYTESTR_DEPS': '\\', 'CC': 'clang', 'CCSHARED': '', 'CFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'CFLAGSFORSHARED': '', 'CFLAGS_ALIASING': '-fno-strict-aliasing', 'CONFIGFILES': 'configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in', 'CONFIGURE_CFLAGS': '-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'CONFIGURE_CFLAGS_NODIST': '-I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden', 'CONFIGURE_CPPFLAGS': '-I/opt/homebrew/include', 'CONFIGURE_LDFLAGS': '-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'CONFIGURE_LDFLAGS_NODIST': '-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g', 'CONFIG_ARGS': "'--prefix=/opt/homebrew/opt/python@3.9' '--enable-ipv6' '--datarootdir=/opt/homebrew/opt/python@3.9/share' '--datadir=/opt/homebrew/opt/python@3.9/share' '--without-ensurepip' '--enable-loadable-sqlite-extensions' '--with-openssl=/opt/homebrew/opt/openssl@1.1' '--with-dbmliborder=gdbm:ndbm' '--enable-optimizations' '--with-lto' '--with-system-expat' '--with-system-ffi' '--with-system-libmpdec' '--enable-framework=/opt/homebrew/opt/python@3.9/Frameworks' '--with-dtrace' 'MACOSX_DEPLOYMENT_TARGET=12' 'CFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk' 'CFLAGS_NODIST=-I/opt/homebrew/include' 'LDFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk' 'LDFLAGS_NODIST=-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib' 'CPPFLAGS=-I/opt/homebrew/include' 'CC=clang' 'PKG_CONFIG_PATH=/opt/homebrew/opt/openssl@1.1/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/xz/lib/pkgconfig' 'PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/opt/homebrew/Library/Homebrew/os/mac/pkgconfig/12'", 'CONFINCLUDEDIR': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include', 'CONFINCLUDEPY': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9', 'COREPYTHONPATH': '', 'COVERAGE_INFO': '/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12/coverage.info', 'COVERAGE_REPORT': '/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12/lcov-report', 'COVERAGE_REPORT_OPTIONS': 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'DLINCLDIR': '.', 'DLLLIBRARY': '', 'DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754': 0, 'DOUBLE_IS_BIG_ENDIAN_IEEE754': 0, 'DOUBLE_IS_LITTLE_ENDIAN_IEEE754': 1, 'DTRACE': '/usr/sbin/dtrace', 'DTRACE_DEPS': '\\', 'DTRACE_HEADERS': 'Include/pydtrace_probes.h', 'DTRACE_OBJS': '', 'DYNLOADFILE': 'dynload_shlib.o', 'ENABLE_IPV6': 1, 'ENSUREPIP': 'no', 'EXE': '', 'EXEMODE': 755, 'EXPORTSFROM': '', 'EXPORTSYMS': '', 'EXTRATESTOPTS': '', 'EXTRA_CFLAGS': '', 'EXT_SUFFIX': '.cpython-39-darwin.so', 'FILEMODE': 644, 'FLOAT_WORDS_BIGENDIAN': 0, 'FLOCK_NEEDS_LIBBSD': 0, 'GETPGRP_HAVE_ARG': 0, 'GITBRANCH': '', 'GITTAG': '', 'GITVERSION': '', 'GNULD': 'no', 'HAVE_ACCEPT4': 0, 'HAVE_ACOSH': 1, 'HAVE_ADDRINFO': 1, 'HAVE_ALARM': 1, 'HAVE_ALIGNED_REQUIRED': 0, 'HAVE_ALLOCA_H': 1, 'HAVE_ALTZONE': 0, 'HAVE_ASINH': 1, 'HAVE_ASM_TYPES_H': 0, 'HAVE_ATANH': 1, 'HAVE_BIND_TEXTDOMAIN_CODESET': 0, 'HAVE_BLUETOOTH_BLUETOOTH_H': 0, 'HAVE_BLUETOOTH_H': 0, 'HAVE_BROKEN_MBSTOWCS': 0, 'HAVE_BROKEN_NICE': 0, 'HAVE_BROKEN_PIPE_BUF': 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'HAVE_LINUX_NETLINK_H': 0, 'HAVE_LINUX_QRTR_H': 0, 'HAVE_LINUX_RANDOM_H': 0, 'HAVE_LINUX_TIPC_H': 0, 'HAVE_LINUX_VM_SOCKETS_H': 0, 'HAVE_LINUX_WAIT_H': 0, 'HAVE_LOCKF': 1, 'HAVE_LOG1P': 1, 'HAVE_LOG2': 1, 'HAVE_LONG_DOUBLE': 1, 'HAVE_LSTAT': 1, 'HAVE_LUTIMES': 1, 'HAVE_MADVISE': 1, 'HAVE_MAKEDEV': 1, 'HAVE_MBRTOWC': 1, 'HAVE_MEMFD_CREATE': 0, 'HAVE_MEMORY_H': 1, 'HAVE_MEMRCHR': 0, 'HAVE_MKDIRAT': 1, 'HAVE_MKFIFO': 1, 'HAVE_MKFIFOAT': 0, 'HAVE_MKNOD': 1, 'HAVE_MKNODAT': 0, 'HAVE_MKTIME': 1, 'HAVE_MMAP': 1, 'HAVE_MREMAP': 0, 'HAVE_NCURSES_H': 1, 'HAVE_NDIR_H': 0, 'HAVE_NETPACKET_PACKET_H': 0, 'HAVE_NET_IF_H': 1, 'HAVE_NICE': 1, 'HAVE_NON_UNICODE_WCHAR_T_REPRESENTATION': 0, 'HAVE_OPENAT': 1, 'HAVE_OPENPTY': 1, 'HAVE_PATHCONF': 1, 'HAVE_PAUSE': 1, 'HAVE_PIPE2': 0, 'HAVE_PLOCK': 0, 'HAVE_POLL': 1, 'HAVE_POLL_H': 1, 'HAVE_POSIX_FADVISE': 0, 'HAVE_POSIX_FALLOCATE': 0, 'HAVE_POSIX_SPAWN': 1, 'HAVE_POSIX_SPAWNP': 1, 'HAVE_PREAD': 1, 'HAVE_PREADV': 1, 'HAVE_PREADV2': 0, 'HAVE_PRLIMIT': 0, 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'HAVE_SEM_UNLINK': 1, 'HAVE_SENDFILE': 1, 'HAVE_SETEGID': 1, 'HAVE_SETEUID': 1, 'HAVE_SETGID': 1, 'HAVE_SETGROUPS': 1, 'HAVE_SETHOSTNAME': 1, 'HAVE_SETITIMER': 1, 'HAVE_SETLOCALE': 1, 'HAVE_SETPGID': 1, 'HAVE_SETPGRP': 1, 'HAVE_SETPRIORITY': 1, 'HAVE_SETREGID': 1, 'HAVE_SETRESGID': 0, 'HAVE_SETRESUID': 0, 'HAVE_SETREUID': 1, 'HAVE_SETSID': 1, 'HAVE_SETUID': 1, 'HAVE_SETVBUF': 1, 'HAVE_SHADOW_H': 0, 'HAVE_SHM_OPEN': 1, 'HAVE_SHM_UNLINK': 1, 'HAVE_SIGACTION': 1, 'HAVE_SIGALTSTACK': 1, 'HAVE_SIGFILLSET': 1, 'HAVE_SIGINFO_T_SI_BAND': 1, 'HAVE_SIGINTERRUPT': 1, 'HAVE_SIGNAL_H': 1, 'HAVE_SIGPENDING': 1, 'HAVE_SIGRELSE': 1, 'HAVE_SIGTIMEDWAIT': 0, 'HAVE_SIGWAIT': 1, 'HAVE_SIGWAITINFO': 0, 'HAVE_SNPRINTF': 1, 'HAVE_SOCKADDR_ALG': 0, 'HAVE_SOCKADDR_SA_LEN': 1, 'HAVE_SOCKADDR_STORAGE': 1, 'HAVE_SOCKETPAIR': 1, 'HAVE_SPAWN_H': 1, 'HAVE_SSIZE_T': 1, 'HAVE_STATVFS': 1, 'HAVE_STAT_TV_NSEC': 0, 'HAVE_STAT_TV_NSEC2': 1, 'HAVE_STDARG_PROTOTYPES': 1, 'HAVE_STDINT_H': 1, 'HAVE_STDLIB_H': 1, 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'MACOSX_DEPLOYMENT_TARGET': '12', 'MAINCC': 'clang', 'MAJOR_IN_MKDEV': 0, 'MAJOR_IN_SYSMACROS': 0, 'MAKESETUP': './Modules/makesetup', 'MANDIR': '/opt/homebrew/opt/python@3.9/share/man', 'MKDIR_P': './install-sh -c -d', 'MODBUILT_NAMES': 'posix  errno  pwd  _sre  _codecs  _weakref  _functools  _operator  _collections  _abc  itertools  atexit  _signal  _stat  time  _thread  _locale  _io  faulthandler  _tracemalloc  _peg_parser  _symtable  xxsubtype', 'MODDISABLED_NAMES': '', 'MODLIBS': '', 'MODOBJS': 'Modules/posixmodule.o  Modules/errnomodule.o  Modules/pwdmodule.o  Modules/_sre.o  Modules/_codecsmodule.o  Modules/_weakref.o  Modules/_functoolsmodule.o  Modules/_operator.o  Modules/_collectionsmodule.o  Modules/_abc.o  Modules/itertoolsmodule.o  Modules/atexitmodule.o  Modules/signalmodule.o  Modules/_stat.o  Modules/timemodule.o  Modules/_threadmodule.o  Modules/_localemodule.o  Modules/_iomodule.o Modules/iobase.o Modules/fileio.o Modules/bytesio.o Modules/bufferedio.o Modules/textio.o Modules/stringio.o  Modules/faulthandler.o  Modules/_tracemalloc.o  Modules/_peg_parser.o  Modules/symtablemodule.o  Modules/xxsubtype.o', 'MODULE_OBJS': '\\', 'MULTIARCH': 'darwin', 'MULTIARCH_CPPFLAGS': '-DMULTIARCH=\\"darwin\\"', 'MVWDELCH_IS_EXPRESSION': 1, 'NO_AS_NEEDED': '', 'OBJECT_OBJS': '\\', 'OPENSSL_INCLUDES': '-I/opt/homebrew/opt/openssl@1.1/include', 'OPENSSL_LDFLAGS': '-L/opt/homebrew/opt/openssl@1.1/lib', 'OPENSSL_LIBS': '-lssl -lcrypto', 'OPT': '-DNDEBUG -g -fwrapv -O3 -Wall', 'OTHER_LIBTOOL_OPT': '', 'PACKAGE_BUGREPORT': 0, 'PACKAGE_NAME': 0, 'PACKAGE_STRING': 0, 'PACKAGE_TARNAME': 0, 'PACKAGE_URL': 0, 'PACKAGE_VERSION': 0, 'PARSER_HEADERS': '\\', 'PARSER_OBJS': '\\ \\ Parser/myreadline.o Parser/parsetok.o Parser/tokenizer.o', 'PEGEN_HEADERS': '\\', 'PEGEN_OBJS': '\\', 'PGO_PROF_GEN_FLAG': '-fprofile-instr-generate', 'PGO_PROF_USE_FLAG': '-fprofile-instr-use=code.profclangd', 'PLATLIBDIR': 'lib', 'POBJS': '\\', 'POSIX_SEMAPHORES_NOT_ENABLED': 0, 'PROFILE_TASK': '-m test --pgo', 'PTHREAD_KEY_T_IS_COMPATIBLE_WITH_INT': 0, 'PTHREAD_SYSTEM_SCHED_SUPPORTED': 1, 'PURIFY': '', 'PY3LIBRARY': '', 'PYLONG_BITS_IN_DIGIT': 0, 'PYTHON': 'python', 'PYTHONFRAMEWORK': 'Python', 'PYTHONFRAMEWORKDIR': 'Python.framework', 'PYTHONFRAMEWORKINSTALLDIR': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework', 'PYTHONFRAMEWORKPREFIX': '/opt/homebrew/opt/python@3.9/Frameworks', 'PYTHONPATH': '', 'PYTHON_FOR_BUILD': './python.exe -E', 'PYTHON_HEADERS': '\\', 'PYTHON_OBJS': '\\', 'PY_BUILTIN_HASHLIB_HASHES': '"md5,sha1,sha256,sha512,sha3,blake2"', 'PY_BUILTIN_MODULE_CFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include -DPy_BUILD_CORE_BUILTIN', 'PY_CFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'PY_CFLAGS_NODIST': '-I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal', 'PY_COERCE_C_LOCALE': 1, 'PY_CORE_CFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include -DPy_BUILD_CORE', 'PY_CORE_LDFLAGS': '-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g', 'PY_CPPFLAGS': '-I. -I./Include -I/opt/homebrew/include', 'PY_FORMAT_SIZE_T': '"z"', 'PY_LDFLAGS': '-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk', 'PY_LDFLAGS_NODIST': '-L/opt/homebrew/lib -Wl,-rpath,/opt/homebrew/lib -flto -Wl,-export_dynamic -g', 'PY_SSL_DEFAULT_CIPHERS': 1, 'PY_SSL_DEFAULT_CIPHER_STRING': 0, 'PY_STDMODULE_CFLAGS': '-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/opt/homebrew/include -flto -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -fprofile-instr-use=code.profclangd -I./Include/internal -I. -I./Include -I/opt/homebrew/include', 'Py_DEBUG': 0, 'Py_ENABLE_SHARED': 0, 'Py_HASH_ALGORITHM': 0, 'Py_TRACE_REFS': 0, 'QUICKTESTOPTS': '-x test_subprocess test_io test_lib2to3 \\', 'READELF': ':', 'RESSRCDIR': 'Mac/Resources/framework', 'RETSIGTYPE': 'void', 'RUNSHARED': 'DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12', 'SCRIPTDIR': '/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib', 'SETPGRP_HAVE_ARG': 0, 'SHELL': '/bin/sh', 'SHLIBS': '-ldl   -framework CoreFoundation', 'SHLIB_SUFFIX': '.so', 'SHM_NEEDS_LIBRT': 0, 'SIGNED_RIGHT_SHIFT_ZERO_FILLS': 0, 'SITEPATH': '', 'SIZEOF_DOUBLE': 8, 'SIZEOF_FLOAT': 4, 'SIZEOF_FPOS_T': 8, 'SIZEOF_INT': 4, 'SIZEOF_LONG': 8, 'SIZEOF_LONG_DOUBLE': 8, 'SIZEOF_LONG_LONG': 8, 'SIZEOF_OFF_T': 8, 'SIZEOF_PID_T': 4, 'SIZEOF_PTHREAD_KEY_T': 8, 'SIZEOF_PTHREAD_T': 8, 'SIZEOF_SHORT': 2, 'SIZEOF_SIZE_T': 8, 'SIZEOF_TIME_T': 8, 'SIZEOF_UINTPTR_T': 8, 'SIZEOF_VOID_P': 8, 'SIZEOF_WCHAR_T': 4, 'SIZEOF__BOOL': 1, 'SOABI': 'cpython-39-darwin', 'SRCDIRS': 'Parser Parser/pegen Objects Python Modules Modules/_io Programs', 'SRC_GDB_HOOKS': './Tools/gdb/libpython.py', 'STDC_HEADERS': 1, 'STRICT_SYSV_CURSES': "/* Don't use ncurses extensions */", 'STRIPFLAG': '-s', 'SUBDIRS': '', 'SUBDIRSTOO': 'Include Lib Misc', 'SYSLIBS': '', 'SYS_SELECT_WITH_SYS_TIME': 1, 'TCLTK_INCLUDES': '', 'TCLTK_LIBS': '', 'TESTOPTS': '', 'TESTPATH': '', 'TESTPYTHON': 'DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12 ./python.exe', 'TESTPYTHONOPTS': '', 'TESTRUNNER': 'DYLD_FRAMEWORK_PATH=/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12 ./python.exe ./Tools/scripts/run_tests.py', 'TESTTIMEOUT': 1200, 'TIMEMODULE_LIB': 0, 'TIME_WITH_SYS_TIME': 1, 'TM_IN_SYS_TIME': 0, 'TZPATH': '/usr/share/zoneinfo:/usr/lib/zoneinfo:/usr/share/lib/zoneinfo:/etc/zoneinfo', 'UNICODE_DEPS': '\\', 'UNIVERSALSDK': '', 'UPDATE_FILE': 'python3 ./Tools/scripts/update_file.py', 'USE_COMPUTED_GOTOS': 0, 'VERSION': '3.9', 'WINDOW_HAS_FLAGS': 1, 'WITH_DECIMAL_CONTEXTVAR': 1, 'WITH_DOC_STRINGS': 1, 'WITH_DTRACE': 1, 'WITH_DYLD': 1, 'WITH_LIBINTL': 0, 'WITH_NEXT_FRAMEWORK': 1, 'WITH_PYMALLOC': 1, 'WITH_VALGRIND': 0, 'X87_DOUBLE_ROUNDING': 0, 'XMLLIBSUBDIRS': 'xml xml/dom xml/etree xml/parsers xml/sax', 'abs_builddir': '/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12', 'abs_srcdir': '/private/tmp/pythonA3.9-20220326-49966-1n3ovp7/Python-3.9.12', 'datarootdir': '/opt/homebrew/opt/python@3.9/share', 'srcdir': '/opt/homebrew/Cellar/python@3.9/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/config-3.9-darwin', 'SO': '.cpython-39-darwin.so', 'userbase': '/Users/alex/Library/Python/3.9'}

It might be the case there are multiple sources of conflicting information. So we have to find out what pip is doing here to understand the problem.

Yeah, this sounds pretty likely.

It looks like pip install (which doesn't use setuptools, I'm told) puts the console script in /opt/homebrew/bin, whereas pip install -e (which uses setuptools) puts it in /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/bin, just like how python setup.py install and python setup.py develop do. I think that ideally, the script would always get installed in /opt/homebrew/bin, since that's in the user's PATH, as macOS Homebrew intends.

I suspect this is the relevant bit of the Homebrew formula (python@3.9). I'm not sure if the issue is on the setuptools end, or if perhaps something needs to be done to configure setuptools in this site-customisation code?

@abravalheri
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abravalheri commented May 16, 2022 •
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Thank you very much @alexreg, what I think might be happening here is the following:

In python@3.9, Homebrew does re-define *prefix and the "scripts" install scheme to point to /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9, however, Homebrew also overwrite the default value for python setup.py install --prefix to /usr/local/bin via the distutils.cfg file.

Since setuptools tries to overwrite distutils with setuptools/_distutils, the distutils/distutils.cfg file can no longer be found.

(Please have in mind that I don't have a macOS computer to test this hypothesis, so I might be wrong.)

@jaraco, maybe we can solve this by adding yet another search path to distutils.dist.find_config_files, something like the following (draft, not tested):

        sys_file = os.path.join(sys_dir, "distutils.cfg")
        if os.path.isfile(sys_file):
            files.append(sys_file)
+       elif sys.platform == "darwin" and getattr(sys, "_framework", None):
+           # Here we try to restrict the changes to Homebrew,
+           # but we might want to always fallback regardless of the system
+           # (`sys._framework` seems to exists according to CPython's sysconfg).
+           alt_file = _get_sitepackages_config("distutils.cfg")
+           if alt_file is not None:
+               files.append(alt_file)

 # ...

+ def _get_sitepackages_config(filename):
+     import site
+
+     for site_path in site.getsitepackages():
+         candidate = os.path.join(site_path, "distutils", filename)
+         if os.path.isfile(candidate):
+             return candidate
+     return None

@alexreg
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alexreg commented May 16, 2022

@abravalheri Seems like you're spot on. To test, I copied /opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/distutils.cfg to /opt/homebrew//lib/python3.9/site-packages/setuptools/_distutils/distutils.cfg, and then ran pip install -e . on a project. This works as expect, and installs my project's console scripts into /opt/homebrew/bin.

Here's the contents of the file, for record.

[install]
prefix=/opt/homebrew
[build_ext]
include_dirs=/opt/homebrew/include:/opt/homebrew/opt/openssl@1.1/include:/opt/homebrew/opt/sqlite/include
library_dirs=/opt/homebrew/lib:/opt/homebrew/opt/openssl@1.1/lib:/opt/homebrew/opt/sqlite/lib

Note that /opt/homebrew is the Homebrew prefix on M1 Macs, and the analogue to the traditional /usr/local.

@abravalheri
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Thank you very much for the feedback and tests @alexreg, let's see what Jason suggests as the path forward for this issue. We might need to change pypa/distutils.

@abravalheri abravalheri mentioned this issue Jun 1, 2022
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@jaraco
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jaraco commented Jun 12, 2022

Thanks alexreg for the report and abravalheri for the detailed investigation.

I'm surprised I haven't encountered this issue, because I develop on an M1 mac using Python installed using Homebrew and use editable installs (pip -e/setup.py develop) as a standard part of my workflow. Oh, I guess the difference is that I almost exclusively use virtualenvs for those editable installs.

It's true that historically, there was no such thing as a standard install of distutils. Seemingly each distribution and platform variant had their own customization of distutils, and it seems homebrew was no exception. In this case, I'm pleased to see that Homebrew didn't monkeypatch distutils but only supplied a distutils.cfg file. Still, as you can see, now that distutils is migrating from stdlib to Setuptools, that hook no longer holds.

The good news is that the latest distutils does provide a supported mechanism for overriding install locations, and it's a mechanism shared by other projects, including pip, and that's by overriding sysconfig._INSTALL_SCHEMES.

And on Python 3.10, I see the correct value:

>>> import sysconfig
>>> sysconfig.get_preferred_scheme('prefix')
'osx_framework_library'
>>> sysconfig.get_path('scripts')
'/opt/homebrew/bin'

So the next question - why isn't distutils using that value?

@jaraco jaraco changed the title [BUG] Homebrew/framework install scheme not honored for scripts Jun 12, 2022
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jaraco commented Jun 12, 2022

This issue is certainly rooted in distutils, so moving it there.

@jaraco jaraco transferred this issue from pypa/setuptools Jun 12, 2022
@jaraco jaraco self-assigned this Jun 12, 2022
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jaraco commented Jun 12, 2022 •
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I see now that the scheme is essentially irrelevant, because it's the prefix / install_base that's being customized by the pydistutils.cfg file.

distutils main $ py -c "import distutils.command.install as inst; print(inst._load_scheme('posix_prefix')['scripts'])"
{base}/bin

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jaraco commented Jun 12, 2022

Trying to figure out how sysconfig resolves scripts to /opt/homebrew, I took a look at the base config var, but that's not where it happens:

distutils main $ py -c "import sysconfig; print(sysconfig.get_config_var('base')); print(sysconfig.get_path('scripts'))"
/opt/homebrew/opt/python@3.10/Frameworks/Python.framework/Versions/3.10
/opt/homebrew/bin

@abravalheri
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abravalheri commented Jun 12, 2022 •
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Hi @jaraco, I remember seeing that different Python versions distributed by homebrew would use different techniques to customize the installation scheme.

The customization for Python3.10 is likely to use a different approach than the ones for 3.9, 3.8, 3.7.

These links might be relevant:

@jaraco
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jaraco commented Jun 12, 2022

Oh! Good tip. So maybe this issue doesn't affect Python 3.10?

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jaraco commented Jun 12, 2022 •
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I think maybe that's true:

distutils main $ py -c "import distutils.command.install as inst; print(inst._load_scheme(inst._resolve_scheme('posix_prefix'))['scripts'])"
/opt/homebrew/bin
distutils main $ py -3.9 -c "import distutils.command.install as inst; print(inst._load_scheme(inst._resolve_scheme('posix_prefix'))['scripts'])"
{base}/bin

@abravalheri
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Yeah, I think it does not affect 3.10. However it will still affect older versions (with EOS programmed to October 2025)...

I don't know if the Homebrew team is planning to keep supporting these versions and if they plan to change the customization mechanism for future patch releases of the "bottles"...

@jaraco
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jaraco commented Jun 12, 2022

In that case, Python 3.9 and earlier will probably not get the install schemes treatment, so distutils is left without the patched context left by Homebrew. I'm now starting to agree with abravalheri's recommendation to honor pydistutils.cfg if found in the system site packages. In addition to limiting it to framework builds, I'd also want to limit it to Python 3.9 and earlier.

Another option could be simply to declare this use case as unsupported. It seems to be pretty rare. I believe there's a workaround where if you run with SETUPTOOLS_USE_DISTUTILS=stdlib set in the environment, that should cause the old distutils to be invoked at the stdlib location, and thus honor the pydistutils.cfg. e.g.:

$ env SETUPTOOLS_USE_DISTUTILS=stdlib pip install -e .

@alexreg Could you try that and confirm if the scripts install as expected?

@alexreg
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alexreg commented Jun 12, 2022

@jaraco Yep, that works too.

I should note, however, that subsequently doing pip uninstall [package] does not remove the console script, only the package itself. This was likewise the case with the other approach (symlinking distutils.cfg).

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jaraco commented Jun 13, 2022

Yep, that works too.

That's great news. Now the follow-up question - will this workaround be sufficient to get by until Python 3.9 is sunset or do you need a more robust solution?

Also, I should note that setuptools is working on a PEP 660 based solution that should obviate the need for pip to call setup.py develop and should address the issue, even for older Pythons. It just needs to land.

I should note, however, that subsequently doing pip uninstall [package] does not remove the console script, only the package itself. This was likewise the case with the other approach (symlinking distutils.cfg).

I suspect that's the case irrespective of python versions or setuptools versions. I'm pretty sure pip relies on setuptools' setup.py develop to uninstall and it doesn't remove any scripts. That's a bug that's not going to get fixed until Setuptools adopts a PEP 660 solution.

@alexreg
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alexreg commented Jun 13, 2022

@jaraco Good to know about the PEP 660 plans.

The problem right now is that Homebrew Python is stuck on 3.9, and will be so for the foreseeable future due to some weird policies. So, if a fix in setuptools is possible, that would be much appreciated.

jaraco added a commit that referenced this issue Jul 2, 2022
@jaraco
Add support for Homebrew on Python 3.9 instead of relying on distutil…
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…s.cfg as found in the stdlib. Fixes #152.
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Add support for Homebrew on Python 3.9 instead of relying on distutil…
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…s.cfg as found in the stdlib. Fixes #152.
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Add support for Homebrew on Python 3.9 instead of relying on distutil…
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…s.cfg as found in the stdlib. Fixes #152.
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jaraco commented Jul 2, 2022 •
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In #155, I've drafted a compatibility shim that should enable installing resources to the homebrew prefix. I've tested the functionality superficially, but haven't tested it in a real-world environment. Here's how you can test it in your environment:

  1. Install a late (or the latest) version of Setuptools.
  2. Override setuptools._distutils with this copy of distutils.
$ wget -O - https://github.com/pypa/distutils/archive/refs/heads/refactor/142-allow-pathlike.zip | bsdtar -x -C $(py -3.9 -c "import distutils, os; print(os.path.dirname(distutils.__file__))") --strip-components 2 --exclude docs/

Note the command above requires wget, libarchive, and python-launcher (all available in homebrew). Note also that it applies the code directly to your environment, so use at your own risk. If you'd rather take it safer, just download the code yourself and copy over the files to your site-packages/setuptools/_distutils directory manually.

  1. Install as editable something that installs scripts and confirm that they're installed to $homebrew_prefix/bin as expected.

@jaraco jaraco mentioned this issue Jul 2, 2022
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@alexreg
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alexreg commented Jul 2, 2022

@jaraco Thank you, that's great. A brief test suggests your solution works for me too. (As before, pip uninstall does not work, but that's a small matter in comparison. Shouldn't be a problem to wait for an implementation of PEP 660.)

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jaraco commented Jul 3, 2022

Thanks Alexander for reviewing. I'll merge it and get it out to Setuptools and we can iterate if needed.

@jaraco jaraco mentioned this issue Jul 4, 2022
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Bo98 commented Jul 10, 2022 •
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Just to clarify: patching sysconfig for <= 3.9 on the Homebrew side was (and still is) considered as an option. There is however one big breakage (which we accepted as a "breaking change" for 3.10): --prefix no longer works properly for site-packages etc. This is because that works by swapping base and base is not used in the modified sysconfig for some items. We did make quite a bit of use of --prefix in dependents, so some migration work would be required to add --install-lib etc (which was easier to cover in a 3.9 -> 3.10 transition).

This is a limitation in sysconfig. Fedora also share the same issue: https://bugzilla.redhat.com/show_bug.cgi?id=2026979. There's a few areas of sysconfig that really haven't matured enough yet, e.g. python/cpython#88142.

The reason --prefix works in pip is because we (ab)use this hack: https://github.com/pypa/pip/blob/ae324d17033253626725330c6635c0089927fbf5/src/pip/_internal/locations/_sysconfig.py#L157-L161. This hack wasn't actually Homebrew-specific. It was specific to Apple's Python and we just decided to name our scheme the same to make use of that.

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      Bump version: 62.6.0 → 63.0.0

Christoph Reiter (1):
      Improve handling if runtime_library_dirs is set with cygwin/mingw

Hugo van Kemenade (1):
      Add stacklevel=2 to make calling code clear

Jac (2):
      Update docs/userguide/pyproject_config.rst
      Update docs/userguide/pyproject_config.rst

Jac Fitzgerald (2):
      [Docs] Missing requires-python in "using pyproject.toml" #3305
      Create 3305.doc.rst

Jason R. Coombs (8):
      Prefer spaces for rst. Fixes jaraco/skeleton#64.
      Honor PEP 518 with pytest-enabler.
      Add support for Homebrew on Python 3.9 instead of relying on distutils.cfg as found in the stdlib. Fixes pypa/distutils#152.
      Bump version: 63.0.0 → 63.1.0
      Use text mode for subprocess, avoiding unicode sandwich.
      Disable framework_compat except for Homebrew builds. Fixes pypa/distutils#158.
      Update changelog. Ref #3435.
      Bump version: 63.1.0 → 63.2.0

Matthias Jansen (1):
      fix userguide typo

Matthias Koeppe (1):
      .github/workflows/ci-sage.yml: Update system configutations after https://trac.sagemath.org/ticket/33316

Patrick Lannigan (2):
      Update logging recommendation to not use distutils
      Add changelog entry

Saniya Maheshwari (3):
      Reorganized the User Guide's Table of Contents
      Removed quotes around Development Mode.
      Added news fragment.
jaraco added a commit that referenced this issue Nov 2, 2024
@jaraco
Use extend for proper workaround.
d778f26 
Closes #152
Workaround for astral-sh/ruff#10299
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