[llvm-dev] [LNT] Build bot problems due to Python dependencies

[Ulrich Weigand via llvm-dev]

Chris Matthews <chris.matthews at apple.com> wrote on 14.07.2020 00:32:26:

> It is possible we are doing that in some "old way" that is no longer
> valid.  LNT does not support python 3.0-3.5, only 3.6 and newer. So
> it seems odd that we would not all hit this issue.
>
> Could you provide a link to the failing bot, as well as the python
> doc you mentioned?

http://lab.llvm.org:8011/builders/clang-s390x-linux-lnt

https://pypi.org/project/typing/

> Did this fail because of a commit, or a was the testing environment
changed?

Interestingly enough, as of yesterday (Jul 13) the build bot is green
again.  I notice the following difference in the logs:

When it last used to work, we see:
Downloading
https://files.pythonhosted.org/packages/fe/2e/b480ee1b75e6d17d2993738670e75c1feeb9ff7f64452153cf018051cc92/typing-3.7.4.1-py3-none-any.whl#sha256=f38d83c5a7a7086543a0f649564d661859c5146a85775ab90c0d2f93ffaa9714

Best match: typing 3.7.4.1

While it failed, we see:
Downloading
https://files.pythonhosted.org/packages/8f/00/c999df515e923dbb73281426f5032a3d12b68600e362af30ed2c495d1e79/typing-3.7.4.2.tar.gz#sha256=6f6f3553709d2234e412092e5daa93aaaaa42ea1854505442280b39f9311707f

Best match: typing 3.7.4.2

And since it is working again, we see:
Downloading
https://files.pythonhosted.org/packages/05/d9/6eebe19d46bd05360c9a9aae822e67a80f9242aabbfc58b641b957546607/typing-3.7.4.3.tar.gz#sha256=1187fb9c82fd670d10aa07bbb6cfcfe4bdda42d6fab8d5134f04e8c4d0b71cc9

Best match: typing 3.7.4.3

So this seems a clear indication that this was actually just a
problem with the upstream 3.7.4.2 version of the typing package.

Given that seems appears to have been resolved with 3.7.4.3,
I think we're good again.

Thanks,
Ulrich
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