manylinux2010 fails with old pip 9

[cbm755]

From glancing at #179 (second crossed out bullet point) I suspect this might be the intended behaviour, but my understanding here is low, so I'll file this just in case...

On Ubuntu 18.04, one has rather old pip:

$ /usr/bin/pip3 -V
pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.6)

With this, I get

pip3 install -U PyMuPDF-1.16.7-cp36-cp36-manylinux2010_x86_64.whl
PyMuPDF-1.16.7-cp36-cp36-manylinux2010_x86_64.whl is not a supported wheel on this platform.

• If I rename the file to ...-manylinux1_x86_64.whl then it "works".
• Or if upgrade my pip of course it works.

Is this intended? Seems to me, Ubuntu 18.04 is going to be around as a docker-based and in VM contexts for quite some time...

[mayeut]

It's the expected behavior, support for manylinux2010 wheels has been added in pip 19.0
There are discussions on-going to mitigate this kind of issue in the future. c.f. https://www.python.org/dev/peps/pep-0600/ and the discourse thread linked in it.

[cbm755]

Ok.

manylinux2010 in pip 10 and manylinux2014 in pip 19? Or did I misready #179 and #338?

[mayeut]

pip 19.0 for manylinux2010, I corrected #179 (original planning was for 10.x but got shifted)
pip 19.3 for manylinux2014

[cbm755]

thanks!

Its surprisingly non-trivial to upgrade pip3 on Ubuntu 18.04 in a way that works OOTB (say in a CI environment). Here's what's I'm doing in my .gitlab-ci.yml file in case this helps someone who finds her way here:

 before_script:
   - apt-get update
   - DEBIAN_FRONTEND=noninteractive apt-get install -y tzdata curl
-  - pip3 install pymupdf
+  - pip3 install --upgrade pip
+  - which pip3
+  - python3 -m pip -V
+  - python3 -m pip install pymupdf

update: keywords for search engines: which pip3 looks like it DTRT but if I simply does pip3 install pymupdf, I get:

  File "/usr/bin/pip3", line 9, in <module>
    from pip import main
ImportError: cannot import name 'main'

So instead I do python3 -m pip install pymupdf