Issue
I'm trying to install matplotlib in my Python env (rosnav) but I keep getting the same error:
(rosnav) ➜ ~ pip install matplotlib
Collecting matplotlib
Using cached matplotlib-3.3.4.tar.gz (37.9 MB)
ERROR: Command errored out with exit status -4:
command: /home/vis2020/python_env/rosnav/bin/python -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-pfyhcwif/matplotlib_ddf1d8a6a94c452bae24a255a1ffb9b8/setup.py'"'"'; __file__='"'"'/tmp/pip-install-pfyhcwif/matplotlib_ddf1d8a6a94c452bae24a255a1ffb9b8/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'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-c45rjl2z
cwd: /tmp/pip-install-pfyhcwif/matplotlib_ddf1d8a6a94c452bae24a255a1ffb9b8/
Complete output (19 lines):
Edit setup.cfg to change the build options; suppress output with --quiet.
BUILDING MATPLOTLIB
matplotlib: yes [3.3.4]
python: yes [3.6.9 (default, Jan 26 2021, 15:33:00) [GCC 8.4.0]]
platform: yes [linux]
sample_data: yes [installing]
tests: no [skipping due to configuration]
macosx: no [Mac OS-X only]
running egg_info
creating /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info
writing /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/PKG-INFO
writing dependency_links to /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/dependency_links.txt
writing namespace_packages to /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/namespace_packages.txt
writing requirements to /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/requires.txt
writing top-level names to /tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/top_level.txt
writing manifest file '/tmp/pip-pip-egg-info-c45rjl2z/matplotlib.egg-info/SOURCES.txt'
----------------------------------------
WARNING: Discarding https://files.pythonhosted.org/packages/22/d4/e7ca532e68a9357742604e1e4ae35d9c09a4a810de39a9d80402bd12f50f/matplotlib-3.3.4.tar.gz#sha256=3e477db76c22929e4c6876c44f88d790aacdf3c3f8f3a90cb1975c0bf37825b0 (from https://pypi.org/simple/matplotlib/) (requires-python:>=3.6). Command errored out with exit status -4: python setup.py egg_info Check the logs for full command output.
I have look for solutions and they basically all tell me to run:
pip install --upgrade setuptools
in one way or the other. But this has not worked for me so far.
Has someone come across the same or a similar issue?
Solution
- This issue is related to a numpy issue:
- NumPy 1.19.5 was being installed and it appears that there is an issue with OpenBLAS
- https://github.com/matplotlib/matplotlib/issues/19250
- https://forums.developer.nvidia.com/t/troubles-installing-matplotlib-on-nano-with-python-3-7-3-8-and-a-virtual-env/166837
- Downgrade or Install Numpy 1.19.4
- Upgrade or Install Numpy 1.20.x (if you are using python > 3.6)
Solution
pip install --upgrade pip setuptools wheel
pip install numpy==1.19.4
pip install matplotlib
Answered By - Trenton McKinney
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