pip 10 breaks pandas on alpine linux

[jpds]

• Pip version: 10.0
• Python version: 2.7.14
• Operating system: Alpine 3.7

Description:

Installing pandas on alpine3.7 with pip10 fails with:

  Could not find a version that satisfies the requirement Cython (from versions: )
No matching distribution found for Cython

What I've run:

This is what happens with pip9:

$ sudo docker run --rm -it --entrypoint sh python:2.7.14-alpine3.7
/ # apk add --update build-base
...
/ # pip install pandas
Collecting pandas
  Using cached https://files.pythonhosted.org/packages/08/01/803834bc8a4e708aedebb133095a88a4dad9f45bbaf5ad777d2bea543c7e/pandas-0.22.0.tar.gz
Collecting python-dateutil (from pandas)
  Downloading https://files.pythonhosted.org/packages/0c/57/19f3a65bcf6d5be570ee8c35a5398496e10a0ddcbc95393b2d17f86aaaf8/python_dateutil-2.7.2-py2.py3-none-any.whl (212kB)
    100% |████████████████████████████████| 215kB 1.8MB/s 
Collecting pytz>=2011k (from pandas)
  Downloading https://files.pythonhosted.org/packages/dc/83/15f7833b70d3e067ca91467ca245bae0f6fe56ddc7451aa0dc5606b120f2/pytz-2018.4-py2.py3-none-any.whl (510kB)
    100% |████████████████████████████████| 512kB 2.0MB/s 
Collecting numpy>=1.9.0 (from pandas)
  Downloading https://files.pythonhosted.org/packages/0b/66/86185402ee2d55865c675c06a5cfef742e39f4635a4ce1b1aefd20711c13/numpy-1.14.2.zip (4.9MB)
    100% |████████████████████████████████| 4.9MB 290kB/s 
Collecting six>=1.5 (from python-dateutil->pandas)
  Downloading https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Building wheels for collected packages: pandas, numpy
  Running setup.py bdist_wheel for pandas ...

This is what happens with pip10:

$ sudo docker run --rm -it --entrypoint sh python:2.7.14-alpine3.7
/ # apk add --update build-base
...
/ # pip install -U pip
...
/ # pip install pandas
Collecting pandas
  Downloading https://files.pythonhosted.org/packages/08/01/803834bc8a4e708aedebb133095a88a4dad9f45bbaf5ad777d2bea543c7e/pandas-0.22.0.tar.gz (11.3MB)
    100% |████████████████████████████████| 11.3MB 1.9MB/s 
  Could not find a version that satisfies the requirement Cython (from versions: )
No matching distribution found for Cython

However, I can just install cython with pip install cython.

[pfmoore]

Duplicate of #5298

[benoit-pierre]

@jpds: could you check with #5286 (to install: pip install https://github.com/benoit-pierre/pip/archive/improve_pep518_build_requirements_handling.zip)?

[jpds]

@benoit-pierre Slightly better but it still errors:

/ # pip install https://github.com/benoit-pierre/pip/archive/improve_pep518_build_requirements_handling.zip
Collecting https://github.com/benoit-pierre/pip/archive/improve_pep518_build_requirements_handling.zip
  Downloading https://github.com/benoit-pierre/pip/archive/improve_pep518_build_requirements_handling.zip
     \ 6.5MB 66.4MB/s
Installing collected packages: pip
  Found existing installation: pip 9.0.1
    Uninstalling pip-9.0.1:
      Successfully uninstalled pip-9.0.1
  Running setup.py install for pip ... done
Successfully installed pip-10.0.0
/ # pip install pandas
Collecting pandas
  Downloading https://files.pythonhosted.org/packages/08/01/803834bc8a4e708aedebb133095a88a4dad9f45bbaf5ad777d2bea543c7e/pandas-0.22.0.tar.gz (11.3MB)
    100% |████████████████████████████████| 11.3MB 2.9MB/s 
  Installing build dependencies ... error
  Complete output from command /usr/local/bin/python -m pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-QA0Sta --no-warn-script-location --only-binary :all: -i https://pypi.org/simple -- wheel setuptools Cython "numpy==1.9.3; python_version=='3.5'" "numpy==1.12.1; python_version=='3.6'" "numpy==1.13.1; python_version>='3.7'":
  Ignoring numpy: markers 'python_version == "3.5"' don't match your environment
  Ignoring numpy: markers 'python_version == "3.6"' don't match your environment
  Ignoring numpy: markers 'python_version >= "3.7"' don't match your environment
  Collecting wheel
    Downloading https://files.pythonhosted.org/packages/1b/d2/22cde5ea9af055f81814f9f2545f5ed8a053eb749c08d186b369959189a8/wheel-0.31.0-py2.py3-none-any.whl (41kB)
  Collecting setuptools
    Downloading https://files.pythonhosted.org/packages/20/d7/04a0b689d3035143e2ff288f4b9ee4bf6ed80585cc121c90bfd85a1a8c2e/setuptools-39.0.1-py2.py3-none-any.whl (569kB)
  Collecting Cython
    Could not find a version that satisfies the requirement Cython (from versions: )
  No matching distribution found for Cython

[jpds]

Appears to still be supported on 2.7: https://docs.scipy.org/doc/numpy/user/building.html

[benoit-pierre]

Does this work: pip install -v --no-binary :all: cython?

[jpds]

Yep, attached log.

cython-pip-install.txt

[benoit-pierre]

Sorry, meant pip install -v --only-binary :all: cython!

[benoit-pierre]

The current PEP 518 implementation does not support installing build requirements from source.

[jpds]

That just returns DistributionNotFound: No matching distribution found for cython which I think is because of https://github.com/docker-library/docs/issues/904

[benoit-pierre]

Right, so you'll have to use one of this 2 workarounds to install pandas:

• build a wheel for Cython first: pip wheel -w wheels_dir cython && pip install -f wheels_dir pandas
• or install it first (and the other build dependencies) and disable build isolation: pip install cython && pyp install --no-build-isolation pandas

[pradyunsg]

Thanks for filing this issue @jpds!

As noted, this is a duplicate of #5298. Feel free to close this issue if you don't have any more questions. :)

[jorisvandenbossche]

@pradyunsg small note: this is not a duplicate of #5298 (that is actually about the version specification in toml files not yet fully supported (which results in not finding a wheel), this is about build dependencies needing to be installable from wheels in general), but rather a duplicate of https://github.com/pypa/pip/issues/5229

[pradyunsg]

Indeed. Thanks for correcting me @jorisvandenbossche! :)

My bad -- I guess I had too many open tabs and couldn't keep track of my clipboard.

[benoit-pierre]

Shouldn't this be closed as a duplicate of #5229 then?

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.