I have some troubles with using Theano Python library in virtualenv on Fedora 31.
Here is an error message which I get:
You can find the C code in this temporary file: /tmp/theano_compilation_error_K6DiVQ
Traceback (most recent call last):
File “process_data.py”, line 2, in
import theano
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/init.py”, line 110, in
from theano.compile import (
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/compile/init.py”, line 12, in
from theano.compile.mode import *
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/compile/mode.py”, line 11, in
import theano.gof.vm
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/gof/vm.py”, line 674, in
from . import lazylinker_c
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/gof/lazylinker_c.py”, line 140, in
preargs=args)
File “/home/olya/env_p27/lib/python2.7/site-packages/theano/gof/cmodule.py”, line 2396, in compile_str
(status, compile_stderr.replace(’\n’, '. ')))
Exception: Compilation failed (return status=1): /home/olya/.theano/compiledir_Linux-5.3-fc31.x86_64-x86_64-with-fedora-31-Thirty_One-x86_64-2.7.17-64/lazylinker_ext/mod.cpp:1:10: error Python.h: no such file or catalog 1 | #include <Python.h>. | ^~~~~~~~~~. compilation was interrupted…
Here is output to “which theano” command in cmd:
/usr/bin/which: no theano in (/home/olya/env_p27/bin:/usr/share/Modules/bin:/usr/condabin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/home/olya/.local/bin:/home/olya/bin)
I already reinstall this package with pip, but it didn’t help. Maybe some of you had some similar problems like that? Thank you in advance
You may have found the answer already, but if not, I think that what you’re seeing is the result of python2.x getting dropped in Fedora 31.
I also used python2.7 in a virtualenv and when I checked the package changes before the upgrade, I noticed that virtualenv-related packages for 2.7 were going to be uninstalled. Sure enough, after the upgrade my existing virtual environments had similar issues.
Other than waiting for a python 3 port or choosing a distribution willing to support python 2 past its EOL, there are no options. The latter is going to be a bit risky.
However I would defer to others judgement on whether that is considered secure as the toolbox container still has access to your home directory and files.
You need to install python2-devel for the Python headers. But even better at this point, don’t use Python 2. Theano supports Python 3, but also, it seems out of development for 2 years.
