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Unset PIP_REQUIRE_VIRTUALENV when running 'pip' #84

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Unset PIP_REQUIRE_VIRTUALENV when running 'pip' #84

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12 changes: 9 additions & 3 deletions pep517/envbuild.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
import logging
import toml
import shutil
from subprocess import check_call
import subprocess
import sys
from sysconfig import get_paths
from tempfile import mkdtemp
Expand Down Expand Up @@ -97,11 +97,17 @@ def pip_install(self, reqs):
cmd = [
sys.executable, '-m', 'pip', 'install', '--ignore-installed',
'--prefix', self.path] + list(reqs)
check_call(
env = os.environ.copy()
# Allow pip to operate without an activated virtualenv
env.pop("PIP_REQUIRE_VIRTUALENV", None)
retcode = subprocess.Popen(
cmd,
stdout=LoggerWrapper(log, logging.INFO),
stderr=LoggerWrapper(log, logging.ERROR),
)
env=env,
).wait()
if retcode != 0:
raise subprocess.CalledProcessError(retcode, cmd)

def __exit__(self, exc_type, exc_val, exc_tb):
needs_cleanup = (
Expand Down