pip-compile crashes on a setup.py that contains entry_points

[daisylb]

If my setup.py contains entry_points, I get an error.

Environment Versions

1. OS Type: macOS 10.12.6
2. Python version: Python 3.6.2
3. pip version: pip 9.0.1
4. pip-tools version: pip-compile, version 1.10.1

Steps to replicate

1. Create a new directory
2. Add a setup.py with the following content
3. Run pip-compile

from setuptools import find_packages, setup

setup(
    name='myproject',
    description='My awesome project',
    url='https://example.com/',
    author='Adam Brenecki',
    author_email='adam@brenecki.id.au',
    license='Proprietary',
    setup_requires=["setuptools_scm>=1.11.1"],
    use_scm_version=True,
    packages=find_packages(),
    include_package_data=True,
    install_requires=[
        'dj-database-url',
        'django-csp',
        'django-form-utils',
        'django-redis',
        'django-stronghold',
        'django-widget-tweaks',
        'Django[argon2]',
        'psycopg2',
        'python-decouple',
        'raven',
        'waitress',
        'django-webpack-loader',
    ],
    extras_require={
        'dev': [
            'pre-commit',
            'prospector',
            'pytest',
            'pytest-django',
        ]
    },
    entry_points={
        'console_scripts': ['sl-admin=sl-admin.manage:main'],
    }
)

Expected result

A requirements.txt is produced. This is the result I get with the exact same setup.py but without entry_points.

Actual result

Traceback (most recent call last):
  File "/Users/adam/.pyenv/versions/3.6.2/bin/pip-compile", line 11, in <module>
    sys.exit(cli())
  File "/Users/adam/.local/lib/python3.6/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/Users/adam/.local/lib/python3.6/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/Users/adam/.local/lib/python3.6/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/adam/.local/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/Users/adam/.pyenv/versions/3.6.2/lib/python3.6/site-packages/piptools/scripts/compile.py", line 167, in cli
    dist = run_setup(src_file)
  File "/Users/adam/.pyenv/versions/3.6.2/lib/python3.6/distutils/core.py", line 227, in run_setup
    script_name)
RuntimeError: 'distutils.core.setup()' was never called -- perhaps 'setup.py' is not a Distutils setup script?

[vphilippon]

Out of curiosity, could you try this and see if the problem occurs:
echo "-e ." | pip-compile -o requirements.txt - (don't forget the - at the end, it's required to read from stdin)

In short, this will do a pip-compile of -e . instead of parsing the setup.py directly.
If it works, then the issue is likely with the way we handle the setup.py parsing, which is my guess.
It would also possibly give you a workaround until we fix it.

[abravalheri]

@vphilippon, I was facing the same problem in this repository (pip-tools branch). Then I added a requirements.in file with -e . as suggested by you, and things worked fine.

So your guess seem to be consistent...

(thank you very much for the information and workaround!)

[atugushev]

It looks like distutils.core.run_setup fails silently on exec(), so I've printed the error manually and got this:

 error in myproject setup command: ("EntryPoint must be in 'name=module:attrs [extras]' format", 'sl-admin=sl-admin.manage:main')

You've got an error in the module path in the entry points: change sl-admin.manage:main to sl_admin.manage:main and it'll work.

[atugushev]

I'll close this based on the above, but please let us know if it doesn't resolve your issue. Thanks!