Why can't PyMC be installed on MAC?

[HeBe-lab]

Hello teacher, I am HeBe. I want to know why PyMC cannot be installed in Apple system? I tried to build pymc using pip install pymc, but it failed.The following error occurred .

ERROR: Command errored out with exit status 1: command: /Users/caoxingxing/opt/anaconda3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/gp/3jwsx6yj1hz1rgsjb9yhrnvh0000gn/T/pip-install-9psedhkz/ pymc_aae48aeefa3142d8bfc5c72105bf13a5/setup.py'"'"'; file='"'"'/private/var/folders/gp/ 3jwsx6yj1hz1rgsjb9yhrnvh0000gn/T/pip-install-9psedhkz/ pymc_aae48aeefa3142d8bfc5c72105bf13a5/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open) (file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/gp/3jwsx6yj1hz1rgsjb9yhrnvh0000gn/T/pip-wheelq6fjas1n cwd: /private/var/folders/gp/3jwsx6yj1hz1rgsjb9yhrnvh0000gn/T/pip-install-9psedhkz/ pymc_aae48aeefa3142d8bfc5c72105bf13a5/ Complete output (1014 lines): running bdist_wheel running build running config_cc unifing config_cc, config, build_clib, build_ext, build commands --compiler options running config_fc unifing config_fc, config, build_clib, build_ext, build commands --fcompiler options running build_src build_src building extension "pymc.flib" sources f2py options: ['skip:ppnd7'] adding 'build/src.macosx-10.9-x86_64-3.8/build/src.macosx-10.9-x86_64-3.8/pymc/fortranobject.c' to sources.

[twiecki]

Are you sure that you don't want PyMC3 https://github.com/pymc-devs/pymc3? This project is not lo longer developed.

[HeBe-lab]

This is mainly because my research needs to use PyMC. If there is no PyMC model, using FitMC will not be possible.

[bao2022]

I have the same problem. I tried to install this pymc==2.3.8 on Mac M1 chip because I have the code for this version. It looks like a gfortran issue (I am using brew install gfortran), can you help fix the issue? Thank you! Here is part of the error message: Collecting pymc Using cached pymc-2.3.8.tar.gz (385 kB) Preparing metadata (setup.py) ... done Building wheels for collected packages: pymc Building wheel for pymc (setup.py) ... error ERROR: Command errored out with exit status 1: command: /Users/t/opt/anaconda3/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/tc/kbzvy3xd4rb5ty_c78l9zqjc0000gn/T/pip-install-w6fe5mq3/pymc_21ead4fedd614b2fbd4fd80c17aa9517/setup.py'"'"'; file='"'"'/private/var/folders/tc/kbzvy3xd4rb5ty_c78l9zqjc0000gn/T/pip-install-w6fe5mq3/pymc_21ead4fedd614b2fbd4fd80c17aa9517/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'"'"'))' bdist_wheel -d /private/var/folders/tc/kbzvy3xd4rb5ty_c78l9zqjc0000gn/T/pip-wheel-uz0lfch7

CCompilerOpt._cache_write[796] : write cache to path -> /private/var/folders/tc/kbzvy3xd4rb5ty_c78l9zqjc0000gn/T/pip-install-w6fe5mq3/pymc_21ead4fedd614b2fbd4fd80c17aa9517/build/temp.macosx-10.9-x86_64-3.9/ccompiler_opt_cache_ext.py

ERROR: Failed building wheel for pymc

[twiecki]

Why pymc 2.3.8? The most recent version is 4.0.0b1. If you do need pymc 2, I'm not surprised it's not working on M1.

[ghost]

It should be easy to convert your model over to v3 or v4. If you need help, please visit our Discourse site and post any questions you may have.