pip-tools is not compatible with pip >= 10.0.0

[cyrilleverrier]

pip-tools is not compatible with pip >= 10.0.0

Environment Versions

1. OS Type: Linux/Ubuntu
2. Python version: Python 2.7.12
3. pip version: $ pip 10.0.0b2
4. pip-tools version: $ pip-compile, version 1.11.0

Steps to replicate

1. . /usr/share/virtualenvwrapper/virtualenvwrapper.sh
2. mkvirtualenv -p /usr/bin/python2 test-pip-tools 3. (test-pip-tools) pip install -U pip ``
3. (test-pip-tools) pip install pip-tools
4. echo Flask > requirements.in
5. (test-pip-tools) pip-compile requirements.in

Expected result

six python package is installed

Actual result

Traceback (most recent call last):
  File "/home/xxx/.virtualenvs/test-pip-tools/bin/pip-compile", line 7, in <module>
    from piptools.scripts.compile import cli
  File "/home/xxx/.virtualenvs/test-pip-tools/local/lib/python2.7/site-packages/piptools/scripts/compile.py", line 11, in <module>
    from pip.req import InstallRequirement, parse_requirements
ImportError: No module named req

Workaround

1. (test-pip-tools) pip install -U pip==9.0.3

[cyrilleverrier]

pip/req has been moved to _internal folder in pip>=10.0.0:
https://github.com/pypa/pip/tree/release/10.0.0/src/pip/_internal

[vphilippon]

Hi @cyrilleverrier, thanks for taking the time to report.

We've got that covered in #580 and the solution is current merged in master, you can test it out if you want. It'll be released in pip-tools 2.0.0 soon™️. I've got a few changes I'd like to get in first, but I don't intend to delay it too much.

(Keeping open for now, as I expect others to hit this.)

[cyrilleverrier]

Thanks @vphilippon. Looking forward to testing it.

[leonsmith]

Is there an expected release date for 2.0?

I'm just trying to triage updating lots of projects to pin the pip version as all our builds have just started failing :(

[vphilippon]

I'm getting on it right away. Thanks for the notification

[vphilippon]

Done:
https://pypi.org/project/pip-tools/2.0.0/

[vphilippon]

FYI 2.0.1 coming up shortly: There was missing package_data in there, which will make pip-compile fail with an error like:

IOError: Could not find a suitable TLS CA certificate bundle, invalid path: <path_to_virtualenv>\lib\site-packages\piptools\_vendored\pip\_vendor\certifi\cacert.pem

[vphilippon]

pip-tools 2.0.1 is out, everything should be working even with pip 10.0.0.

[leonsmith]

wow awesome! thats saved me a huge headache, really appreciated!