Platform specific dependencies ignored when installing from a local directory

[philipdouglas]

My setup.py contains the following:

extras_require={
    ":sys_platform=='win32'": [
        'WMI>=1.4, <1.5',
        'pywin32==217',
    ],
}

when I build a wheel from this and install it using pip, it correctly only installs WMI and pywin32 on Windows.

When I install the same package by pointing pip at the directory the setup.py is in (pip install .), it ignores the win32 packages and just installs the normal ones.

Am I doing something wrong or is this a bug?

[freakboy3742]

I can confirm that I see this bug as well. Wheel installs will correctly pull down dependencies from PyPI; pip install --no-use-wheel and pip install . does not.

My demonstration project is toga-demo.

[mikenerone]

This might be a manifestation of #1236. pip currently can't install any extras from a local directory unless "-e" (editable mode, which is not what you want in a deployment) is specified.

[philipdouglas]

This problem happens with or without -e but it does seem related.

[cournape]

I can confirm the issue happens with -e in development mode for python version specifier as well:

from setuptools import setup


INSTALL_REQUIRES = ["click < 5"]
EXTRAS_REQUIRE = {
    ':python_version=="2.7"': ['pathlib']
}

setup(
    name="foo", version="1.0", install_requires=INSTALL_REQUIRES,
    extras_require=EXTRAS_REQUIRE
)

python setup.py develop will install pathlib when run under python 2.7, but pip install -e . will not.

[xavfernandez]

With what versions of pip did you test ?

(b8450f7fb8090eb3)xfernandez@xfernandez-PORTEGE-R930:~/other_dev/tests⟫ pip list
pip (7.1.0)
setuptools (18.0.1)
(b8450f7fb8090eb3)xfernandez@xfernandez-PORTEGE-R930:~/other_dev/tests⟫ cat test_env/setup.py 
from setuptools import setup


INSTALL_REQUIRES = ["click < 5"]
EXTRAS_REQUIRE = {
    ':python_version=="2.7"': ['pathlib']
}

setup(
    name="foo", version="1.0", install_requires=INSTALL_REQUIRES,
    extras_require=EXTRAS_REQUIRE
)
(b8450f7fb8090eb3)xfernandez@xfernandez-PORTEGE-R930:~/other_dev/tests⟫ pip install -e test_env/
Obtaining file:///home/xfernandez/other_dev/tests/test_env
Collecting click<5 (from foo==1.0)
  Using cached https://pypi-dev//simple/click/click-4.1-py2.py3-none-any.whl
Collecting pathlib (from foo==1.0)
Installing collected packages: click, pathlib, foo
  Running setup.py develop for foo
Successfully installed click-4.1 foo pathlib-1.0.1
(b8450f7fb8090eb3)xfernandez@xfernandez-PORTEGE-R930:~/other_dev/tests⟫ pip list
click (4.1)
foo (1.0)
pathlib (1.0.1)
pip (7.1.0)
setuptools (18.0.1)

latest pip seems to work alright (same for pip install .)

[cournape]

Hm, you're right, I was actually using a very old pip without realizing it. Confirmed it works as expected w/ 7.1.0.