I setup python environment by pyenv and installed pip-tools by pip like:
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> pyenv install 3.9.2 3.9.7
> pyenv 3.9.2
> pip install pip-tools
> pyenv 3.9.7
> pip install pip-tools
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problem
With tox.ini setting pip-compile like below, tox -e pip-compile command failed.
tox.ini
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[testenv:pip-compile]
deps=
pip-tools==3.7
whitelist_external=
sed
rm
commands=
pip-compile setup.py requirements.testing.in -v -o requirements.testing.txt -i https://"pypip repository"
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Run pip-compile over tox
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> cd "project directory"
> pyenv local 3.9.7
> pip --version
pip 22.1.2 from "user directory"/.pyenv/versions/3.9.7/lib/python3.9/site-packages/pip (python 3.9)
> tox -e pip-compile
...
File "project directory"/.tox/pip-compile/lib/python3.9/site-packages/piptools/_compat/pip_compat.py", line 24, in do_import
return getattr(imported, package)
AttributeError: module 'pip._internal.index' has no attribute 'PackageFinder'
ERROR: InvocationError for command "project directory"/.tox/pip-compile/bin/pip-compile setup.py requirements.testing.in -v -o requirements.testing.txt -i https://"pypip repository" (exited with code 1)
__________________________________________________ summary __________________________________________________
ERROR: pip-compile: commands failed
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solution
In my case, this is solved by downgrading python 3.9.2 and pip 20.2.3. While it’s said that upgrading pip solves this.
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> pyenv local 3.9.2
> python -m ensurepip --upgrade
> pip --version
pip 20.2.3 from "user directory"/.pyenv/versions/3.9.2/lib/python3.9/site-packages/pip (python 3.9)
> pip-compile --version
pip-compile, version 6.6.2
> tox -e pip-compile
...
pip-compile: commands succeeded
congratulations :)
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There is a table about pip-tools, pip, and python version compatibility
Looking carefully, pip-tools support on minor version of python 3.9 is not explicitly explained.
In my case, pip-tools itself has not been successfully installed on python 3.9.7 environment while 3.9.2 worked.
pyenv 3.9.2
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> pip-compile --version
pip-compile, version 6.6.2
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pyenv 3.9.7
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> pip-compile --version
File "user directory"/.pyenv/versions/3.9.7/lib/python3.9/site-packages/piptools/repositories/pypi.py", line 23, in <module>
from pip._internal.cli.progress_bars import BAR_TYPES
ImportError: cannot import name 'BAR_TYPES' from 'pip._internal.cli.progress_bars' ("user directory"/.pyenv/versions/3.9.7/lib/python3.9/site-packages/pip/_internal/cli/progress_bars.py)
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