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Merge pull request #1431 from github/rasmuswl/poetry-always-install-pip
python-setup: Handle poetry `virtualenvs.options.no-pip = true`
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,34 @@ | ||
""" | ||
Print the path to the site-packages directory for the current Python environment. | ||
""" | ||
from __future__ import print_function | ||
|
||
try: | ||
import pip | ||
import os | ||
print(os.path.dirname(os.path.dirname(pip.__file__))) | ||
except ImportError: | ||
import sys | ||
print("DEBUG: could not import pip", file=sys.stderr) | ||
# if you use poetry with `virtualenvs.options.no-pip = true` you might end up with a | ||
# virtualenv without pip, so the above trick doesn't actually work. See | ||
# https://python-poetry.org/docs/configuration/#virtualenvsoptionsno-pip | ||
# | ||
# A possible option is to install `pip` into the virtualenv created by poetry | ||
# (`poetry add pip`), but it turns out that doesn't always work :( for the test | ||
# poetry/requests-3, I was not allowed to install pip! So I did not pursue this | ||
# option further. | ||
# | ||
# Instead, testing `site.getsitepackages()` contains has the right path, whereas | ||
# `site.getusersitepackages()` is about the system python (very confusing). | ||
# | ||
# We can't use the environment variable POETRY_VIRTUALENVS_OPTIONS_NO_PIP because it | ||
# does not work, see https://github.com/python-poetry/poetry/issues/5906 | ||
import site | ||
|
||
if sys.platform.startswith("win32"): | ||
# On windows, the last entry of `site.getsitepackages()` has the right path | ||
print(site.getsitepackages()[-1]) | ||
else: | ||
# on unix, the first entry of `site.getsitepackages()` has the right path | ||
print(site.getsitepackages()[0]) |
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Original file line number | Diff line number | Diff line change |
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@@ -1,2 +1,5 @@ | ||
[virtualenvs] | ||
in-project = true | ||
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[virtualenvs.options] | ||
no-pip = true |
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