ModuleNotFoundError: No module named 'pip.req' during installing pip

[jxltom]

Following error occurs during installing pip

-----> Installing pip        
remote: Traceback (most recent call last):        
remote:   File "/tmp/buildpackKXfaB/vendor/pip-pop/pip-diff", line 15, in <module>        
remote:     from pip.req import parse_requirements        
remote: ModuleNotFoundError: No module named 'pip.req'        
remote: mount: can't find failure.bad-requirements in /etc/fstab or /etc/mtab 

This error occurs during every new rebulding.

[jxltom]

This should be related with pip 10 (#680).

And this should be fixed by #683. I don't why it is still not working.

[CaseyFaist]

This should be resolved with the work you submitted being merged at #769 👍