Install broken on pip 10.x

[mattbriancon]

From the pip CHANGELOG:

Move all of pip's APIs into the pip._internal package, properly reflecting the fact that pip does not currently have any public APIs. (#4696, #4700)

Collecting ldclient-py==4.0.6 (from -r requirements.txt (line 74))
  Downloading ldclient-py-4.0.6.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-qsq8HS/ldclient-py/setup.py", line 9, in <module>
        from pip.req import parse_requirements
    ImportError: No module named req

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-qsq8HS/ldclient-py/

[urgas9]

Struggling with the same issue here, would need this fixed.

[theholy7]

Same here. Please fix :)

[ramkrk]

Same issue. Needs work for PIP 10.
I think it should be
from pip._internal.req import parse_requirements

Downloading ldclient-py-4.2.1.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-e0Js8h/ldclient-py/setup.py", line 9, in <module>
        from pip.req import parse_requirements
    ImportError: No module named req

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-e0Js8h/ldclient-py/

[theholy7]

I'll try to fix it later tonight if I have time and open a PR

So I don't forget:

def parse_requirements(filename):
    """ load requirements from a pip requirements file """
    lineiter = (line.strip() for line in open(filename))
    return [line for line in lineiter if line and not line.startswith("#")]

[pechitook]

Any workarounds in the meantime? Downgrading pip?

[eli-darkly]

Sorry about this. We'll be putting out a patch release to fix it today— probably will go with implementing the function ourselves as @theholy7 suggested, rather than importing the non-public API which could just get us in trouble again in the future.

(Also in the meantime, downgrading pip is the only workaround as far as I know.)

[theholy7]

@eli-darkly - Just submitted a PR - hopefully it follows your standards :)

[eli-darkly]

ldclient-py 5.0.4 has been released with this fix. Thanks to everyone who reported this and/or submitted PRs.