No .egg-info directory found for certain packages

Environment

• pip version: 20.2.2
• Python version: 3.7.6 [GCC 4.4.7 20120313 (Red Hat 4.4.7-23)]
• OS: Fedora 31 (Workstation) x86_64 (kernel 5.7.11-100.fc31.x86_64

Description

Several packages (PyYAML, pylzma, bokeh) fail installation after downloading, with a cryptic ERROR: No .egg-info directory found in /dev/shm/...

Expected behavior

Installing the package.

How to Reproduce

1. Install XPLOR.
2. Update pip and setuptools, install wheel: pyXplor -m pip install -U setuptools pip wheel
3. Try to install PyYAML: pyXplor -m pip install -U pyyaml

Output

$ sudo pyXplor -m pip install pyyaml
Collecting pyyaml
  Using cached PyYAML-5.3.1.tar.gz (269 kB)
ERROR: No .egg-info directory found in /dev/shm/xplor-nih-root-8733/pip-pip-egg-info-36yqnfog
PyInterp::command: error executing: >import runpy, sys
runpy.run_module("pip", run_name="__main__")<

Pip works with my normal python distribution just fine, however I currently need to use this python version and so I would like to port my normal python environment into there. I don’t expect official support for anything related to custom forks, but I would really appreciate any hints to fix the issue, because my knowledge of python and its environment is rather limited and I cannot extract any meaning out of this particular error message.

[sbidoul]

If no one has objections I’ll let the bot close this one, as there is nothing we can do for this in pip.

[sbidoul]

@callegar I believe the root cause here is that llfuse setup.py egg_info returns a success exit code even when it failed. If it would return anything else than 0, pip would display the error. I’d suggest reporting the problem with that project.