have_directory_for_build AssertionError when installing with --no-cache-dir (19.0.1)

• pip version: 19.0.1

With the 19.0.1 release, some people are still reporting an AssertionError when installing with --no-cache-dir similar to the one in #6158. This issue is for the 19.0.1-specific issue as it is narrower in scope.

Here are details for a couple reports: https://github.com/pypa/pip/issues/6158#issuecomment-456882072 and https://github.com/pypa/pip/issues/6158#issuecomment-456949839

The traceback looks like this:

Exception:
Traceback (most recent call last):
  File "/mnt/jenkins/workspace/venv/local/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 176, in main
    status = self.run(options, args)
  File "/mnt/jenkins/workspace/venv/local/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 346, in run
    session=session, autobuilding=True
  File "/mnt/jenkins/workspace/venv/local/lib/python2.7/site-packages/pip/_internal/wheel.py", line 886, in build
    assert have_directory_for_build
AssertionError

Some work-arounds (feel free to add to the list):

• Use pip version 18.1.
• Pass --no-use-pep517 in your invocation.
• See issue #6158 for some other possibilities.

[pradyunsg]

pip 19.0.2 has been released with a fix for this.

[eliasbrange]

Easily reproducable in docker:

# Same for 3.5.6, 3.6.8, etc.
FROM python:3.7.2-alpine

RUN pip3 install -U pip

RUN pip3 install --no-cache-dir pendulum