pyprof: pipmain TypeError: 'module' object is not callable

[hartb]

Building APEX with --pyprof in an environment with current pip may fail with:

Traceback (most recent call last):           
  File "setup.py", line 37, in <module>      
    pipmain(["install"] + required_packages) 
TypeError: 'module' object is not callable   

This is because pip moved the main function into a new main module under pip._internal between 19.2.3 and 19.3. It looks like they'll (temporarily) re-instate pip._internal.main as a function post-19.3.1, but the existing APEX setup.py will fail for --pyprof installs with pip 19.3 or 19.3.1.

See:

• pypa/pip@09fd200
• Define all old pip entrypoints pypa/pip#7498
• Add old pip entrypoints pypa/pip#7499

[hartb]

Will submit a PR

[hartb]

Fixed by #652

Thank you! Will close.