Install

[Cronbo]

Trying to get this installed on my raspberry pi 4 but running into the following error after running this step in your instructions. Any ideas?

Command: pip install git+https://github.com/plottertools/taxi#egg=tax

Error message:
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see pypa/pip#5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
Defaulting to user installation because normal site-packages is not writeable
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting taxi
Cloning https://github.com/plottertools/taxi to /tmp/pip-install-4s4euflv/taxi_d014491f54df4b09bb093a15881bdcc2
Running command git clone -q https://github.com/plottertools/taxi /tmp/pip-install-4s4euflv/taxi_d014491f54df4b09bb093a15881bdcc2
Installing build dependencies ... done
Getting requirements to build wheel ... done
ERROR: Exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/pip/_internal/cli/base_command.py", line 180, in _main
status = self.run(options, args)
File "/usr/local/lib/python3.9/site-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
return func(self, options, args)
File "/usr/local/lib/python3.9/site-packages/pip/_internal/commands/install.py", line 318, in run
requirement_set = resolver.resolve(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 103, in resolve
r = self.factory.make_requirement_from_install_req(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 429, in make_requirement_from_install_req
cand = self._make_candidate_from_link(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 200, in _make_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 306, in init
super().init(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 151, in init
self.dist = self._prepare()
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 234, in _prepare
dist = self._prepare_distribution()
File "/usr/local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 317, in _prepare_distribution
return self._factory.preparer.prepare_linked_requirement(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 508, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "/usr/local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 570, in _prepare_linked_requirement
dist = _get_prepared_distribution(
File "/usr/local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 60, in _get_prepared_distribution
abstract_dist.prepare_distribution_metadata(finder, build_isolation)
File "/usr/local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 34, in prepare_distribution_metadata
self._setup_isolation(finder)
File "/usr/local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 88, in _setup_isolation
reqs = backend.get_requires_for_build_wheel()
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/wrappers.py", line 168, in get_requires_for_build_wheel
return self._call_hook('get_requires_for_build_wheel', {
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/wrappers.py", line 275, in _call_hook
raise BackendUnavailable(data.get('traceback', ''))
pip._vendor.pep517.wrappers.BackendUnavailable: Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 86, in _build_backend
obj = import_module(mod_path)
File "/usr/local/lib/python3.9/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1030, in _gcd_import
File "", line 1007, in _find_and_load
File "", line 972, in _find_and_load_unlocked
File "", line 228, in _call_with_frames_removed
File "", line 1030, in _gcd_import
File "", line 1007, in _find_and_load
File "", line 986, in _find_and_load_unlocked
File "", line 680, in _load_unlocked
File "", line 850, in exec_module
File "", line 228, in _call_with_frames_removed
File "/tmp/pip-build-env-rffw7ajn/overlay/lib/python3.9/site-packages/setuptools/init.py", line 18, in
from setuptools.dist import Distribution
File "/tmp/pip-build-env-rffw7ajn/overlay/lib/python3.9/site-packages/setuptools/dist.py", line 38, in
from setuptools import windows_support
File "/tmp/pip-build-env-rffw7ajn/overlay/lib/python3.9/site-packages/setuptools/windows_support.py", line 2, in
import ctypes
File "/usr/local/lib/python3.9/ctypes/init.py", line 8, in
from _ctypes import Union, Structure, Array
ModuleNotFoundError: No module named '_ctypes'

[abey79]

@Cronbo it looks like you need this too:

sudo apt-get install python3-dev

Note that your command should read as follows (but this is likely not the issue):

pip install git+https://github.com/plottertools/taxi#egg=taxi

(missing i at the end)

Also, the install procedure should be considerably simpler with vpype 1.7.0, if you don't require vpype viewer (taxi doesn't need it). I have yet to update the instructions.

[Cronbo]

I will try your suggestions in a bit. And yes, the “i” in taxi was missing when I copied and pasted the command to this message. When I ran it (multiple times) it was properly spelled. I’ll report back if I have any further issues. Thanks for the help!

[Cronbo]

Hello, I tried your suggestion and ran “ sudo pip install python3-dev ” but then got the following error:

WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see pypa/pip#5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
ERROR: Could not find a version that satisfies the requirement python3-dev (from versions: none)
ERROR: No matching distribution found for python3-dev

Any other tips? Thanks!

[abey79]

Sorry, the correct command is sudo apt-get install python3-dev

[Cronbo]

Ok, I ran the command and got this:

$ sudo apt-get install python3-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-dev is already the newest version (3.7.3-1).
python3-dev set to manually installed.
The following packages were automatically installed and are no longer required:
gyp libc-ares2 libjs-inherits libjs-is-typedarray libssl-dev libuv1 libuv1-dev node-abbrev node-ajv node-ansi node-ansi-align node-ansi-regex
node-ansi-styles node-ansistyles node-aproba node-archy node-are-we-there-yet node-asn1 node-assert-plus node-asynckit node-aws-sign2
node-aws4 node-balanced-match node-bcrypt-pbkdf node-bluebird node-boxen node-brace-expansion node-builtin-modules node-builtins node-cacache
node-call-limit node-camelcase node-caseless node-chalk node-chownr node-cli-boxes node-cliui node-clone node-co node-color-convert
node-color-name node-combined-stream node-concat-map node-concat-stream node-config-chain node-console-control-strings node-copy-concurrently
node-core-util-is node-cross-spawn node-cyclist node-dashdash node-decamelize node-decompress-response node-deep-extend node-defaults
node-delayed-stream node-delegates node-detect-indent node-detect-newline node-duplexer3 node-duplexify node-ecc-jsbn node-editor
node-encoding node-end-of-stream node-errno node-escape-string-regexp node-execa node-extend node-extsprintf node-find-up
node-flush-write-stream node-forever-agent node-form-data node-from2 node-fs-vacuum node-fs-write-stream-atomic node-fs.realpath node-gauge
node-get-caller-file node-get-stream node-getpass node-glob node-got node-graceful-fs node-har-schema node-har-validator node-has-flag
node-has-symbol-support-x node-has-to-string-tag-x node-has-unicode node-hosted-git-info node-http-signature node-iconv-lite node-iferr
node-import-lazy node-imurmurhash node-inflight node-inherits node-ini node-invert-kv node-is-builtin-module node-is-npm node-is-object
node-is-plain-obj node-is-retry-allowed node-is-stream node-is-typedarray node-isarray node-isexe node-isstream node-isurl node-jsbn
node-json-parse-better-errors node-json-schema node-json-stable-stringify node-json-stringify-safe node-jsonify node-jsonparse
node-jsonstream node-jsprim node-latest-version node-lazy-property node-lcid node-libnpx node-locate-path node-lockfile node-lowercase-keys
node-lru-cache node-mem node-mime-types node-mimic-fn node-mimic-response node-minimatch node-minimist node-mississippi node-mkdirp
node-move-concurrently node-mute-stream node-node-uuid node-nopt node-normalize-package-data node-npm-package-arg node-npm-run-path
node-npmlog node-oauth-sign node-object-assign node-once node-opener node-os-locale node-osenv node-p-cancelable node-p-finally node-p-limit
node-p-locate node-p-timeout node-package-json node-parallel-transform node-path-exists node-path-is-absolute node-path-is-inside
node-performance-now node-prepend-http node-process-nextick-args node-promise-inflight node-promzard node-proto-list node-prr node-pump
node-pumpify node-punycode node-qs node-qw node-rc node-read node-read-package-json node-readable-stream node-registry-auth-token
node-registry-url node-request node-require-directory node-require-main-filename node-resolve-from node-retry node-rimraf node-run-queue
node-safe-buffer node-semver node-semver-diff node-set-blocking node-sha node-shebang-command node-shebang-regex node-signal-exit node-slash
node-slide node-sorted-object node-spdx-correct node-spdx-expression-parse node-spdx-license-ids node-sshpk node-ssri node-stream-each
node-stream-iterate node-stream-shift node-string-decoder node-string-width node-strip-ansi node-strip-eof node-strip-json-comments
node-supports-color node-tar node-term-size node-text-table node-through node-through2 node-timed-out node-tough-cookie node-tunnel-agent
node-tweetnacl node-typedarray node-uid-number node-unique-filename node-unpipe node-url-parse-lax node-url-to-options node-util-deprecate
node-uuid node-validate-npm-package-license node-validate-npm-package-name node-verror node-wcwidth.js node-which node-which-module
node-wide-align node-widest-line node-wrap-ansi node-wrappy node-write-file-atomic node-xdg-basedir node-xtend node-y18n node-yallist
node-yargs node-yargs-parser nodejs-doc
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

[Cronbo]

Also tried installing again using the latest instructions and ran into the following issues:

1. The $ sign at the beginning of each command listed should not be included as it generates an error, when this website’s “copy/clipboard” icon is used to copy the command
2. I get this error message after i run the command without the $

pi@raspberrypi:~ $ sudo apt-get install python3.9 python3-dev python3-shapely python3-pil python3-numpy python3-scipy python3-serial python3-pygame libsdl2-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package python3.9
E: Couldn't find any package by glob 'python3.9'
E: Couldn't find any package by regex 'python3.9'

[abey79]

Yeah I didn't realise that this would interfere with the copy/paste feature. The $ is there to signify that the command should be entered in a terminal.

This is probably because you are on raspbian stable (as opposed to testing). Apparently 3.9 is not available there. You may try by replacing with python3.7, it should work and should be supported.

[Cronbo]

Getting these errors...

pi@plotterpi:~ $ source taxi-venv/bin/activate
(taxi-venv) pi@plotterpi:~ $ pip install git+https://github.com/plottertools/taxi#egg=taxi
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting taxi
Cloning https://github.com/plottertools/taxi to /tmp/pip-install-gycz3ll_/taxi_116aa34c57ce4c31837c25fa7963e9c6
Running command git clone -q https://github.com/plottertools/taxi /tmp/pip-install-gycz3ll_/taxi_116aa34c57ce4c31837c25fa7963e9c6
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... done
Collecting pyaxidraw@ https://cdn.evilmadscientist.com/dl/ad/public/AxiDraw_API.zip
Downloading https://cdn.evilmadscientist.com/dl/ad/public/AxiDraw_API.zip (378 kB)
|████████████████████████████████| 378 kB 3.0 MB/s
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing wheel metadata ... done
WARNING: Generating metadata for package pyaxidraw produced metadata for project name unknown. Fix your #egg=pyaxidraw fragments.
WARNING: Discarding https://cdn.evilmadscientist.com/dl/ad/public/AxiDraw_API.zip. Requested unknown from https://cdn.evilmadscientist.com/dl/ad/public/AxiDraw_API.zip (from taxi) has different name in metadata: 'UNKNOWN'
Collecting kivy>=2.0.0
Downloading Kivy-2.2.1-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl (19.1 MB)
|████████████████████████████████| 19.1 MB 450 kB/s
Collecting vpype>=1.7.0
Downloading https://www.piwheels.org/simple/vpype/vpype-1.13.0-py3-none-any.whl (541 kB)
|████████████████████████████████| 541 kB 219 kB/s
Requirement already satisfied: Pillow in /usr/lib/python3/dist-packages (from taxi) (8.1.2)
Collecting watchgod>=0.7
Downloading https://www.piwheels.org/simple/watchgod/watchgod-0.8.2-py3-none-any.whl (12 kB)
Requirement already satisfied: numpy>=1.19 in /usr/lib/python3/dist-packages (from taxi) (1.19.5)
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))': /simple/aiohttp/
Collecting aiohttp
Downloading aiohttp-3.8.5-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl (1.1 MB)
|████████████████████████████████| 1.1 MB 2.3 MB/s
Requirement already satisfied: setuptools in ./taxi-venv/lib/python3.9/site-packages (from taxi) (44.1.1)
ERROR: Could not find a version that satisfies the requirement pyaxidraw (unavailable) (from taxi)
ERROR: No matching distribution found for pyaxidraw (unavailable)

Will it still work?

[abey79]

Try installing the axidraw python api manually, as per EMSL's instructions.