pip installation

[jpw37]

I have an active installation of clawpack that I've used quite a bit, but was hoping to use pip to simplify the installation process this time around for some students. It may be that this issue is with my system, but I thought I would raise it here just in case anyone else runs into something similar. pip exits with the following error (I only retained the final few lines which seemed to be where the error was)

4 warnings and 1 error generated. error: Command "gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -I/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/numpy/core/include -I/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/numpy/core/include -I/Library/Frameworks/Python.framework/Versions/3.8/include/python3.8 -I/Library/Frameworks/Python.framework/Versions/3.8/include/python3.8 -c pyclaw/src/pyclaw/limiters/weno/reconstruct.c -o build/temp.macosx-10.9-x86_64-3.8/pyclaw/src/pyclaw/limiters/weno/reconstruct.o -MMD -MF build/temp.macosx-10.9-x86_64-3.8/pyclaw/src/pyclaw/limiters/weno/reconstruct.o.d -std=c99" failed with exit status 1

ERROR: Command errored out with exit status 1: /Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/Users/knrider/clawpack_src/clawpack/setup.py'"'"'; file='"'"'/Users/knrider/clawpack_src/clawpack/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' develop --no-deps Check the logs for full command output.

[mandli]

This is a bug that sprung up more recently on macOS. Interestingly it is fixed by modifying the offending code reconstruct.c as is done in the PR https://github.com/clawpack/pyclaw/pull/667. We have not yet merged it yet as this is different from another fix that we have seen although in testing this does seem to fix things.

Just to check though what version of macOS are you running?

[jpw37]

I'm running 10.15.7. I'll try PR#667 and see what happens. Thanks for the quick response.

Jared Whitehead Associate Professor, Mathematics Department Brigham Young University 350 TMCB, Provo, UT, USA http://math.byu.edu/~whitehead http://www.mormon.org/me/15TK

On Mon, May 10, 2021 at 1:40 PM Kyle Mandli @.***> wrote:

This is a bug that sprung up more recently on macOS. Interestingly it is fixed by modifying the offending code reconstruct.c as is done in the PR clawpack/pyclaw#667 https://github.com/clawpack/pyclaw/pull/667. We have not yet merged it yet as this is different from another fix that we have seen although in testing this does seem to fix things.

Just to check though what version of macOS are you running?

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[mandli]

Let us know if that works for you.

[jpw37]

That worked. Thanks for the feedback. Now I'll see if my students can get through the same process :)

Jared Whitehead Associate Professor, Mathematics Department Brigham Young University 350 TMCB, Provo, UT, USA http://math.byu.edu/~whitehead http://www.mormon.org/me/15TK

On Mon, May 10, 2021 at 2:47 PM Kyle Mandli @.***> wrote:

Let us know if that works for you.

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[mandli]

Good to know. Hopefully we can merge this in soon and it won't be an issue.