Jetson Nano pytorch/fastai/matplotlib issue

[mockbot]

as user I like to use fastai at Jetson Nano 4GB, but install failed:
Looking in links: https://torch.maku.ml/whl/stable.html
Collecting fastai
Using cached fastai-2.2.5-py3-none-any.whl (191 kB)
Collecting fastprogress>=0.2.4
Downloading fastprogress-1.0.0-py3-none-any.whl (12 kB)
Requirement already satisfied: requests in /usr/lib/python3/dist-packages (from fastai) (2.18.4)
Requirement already satisfied: pyyaml in /usr/lib/python3/dist-packages (from fastai) (3.12)
Requirement already satisfied: scipy in /usr/lib/python3/dist-packages (from fastai) (0.19.1)
Requirement already satisfied: pillow>6.0.0 in /usr/local/lib/python3.6/dist-packages (from fastai) (8.1.0)
Collecting scikit-learn
Downloading scikit-learn-0.24.1.tar.gz (7.4 MB)
|████████████████████████████████| 7.4 MB 3.4 MB/s
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... done
Requirement already satisfied: torch<1.8,>=1.7.0 in /usr/local/lib/python3.6/dist-packages (from fastai) (1.7.1)
Requirement already satisfied: pandas in /usr/lib/python3/dist-packages (from fastai) (0.22.0)
Requirement already satisfied: torchvision<0.9,>=0.8 in /usr/local/lib/python3.6/dist-packages (from fastai) (0.8.2)
Collecting matplotlib
Using cached matplotlib-3.3.4.tar.gz (37.9 MB)
ERROR: Command errored out with exit status -4:
command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-1dobxfj1/matplotlib_26be673922654e7c99d4190d61bf226f/setup.py'"'"'; file='"'"'/tmp/pip-install-1dobxfj1/matplotlib_26be673922654e7c99d4190d61bf226f/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-ocp_8rcy
cwd: /tmp/pip-install-1dobxfj1/matplotlib_26be673922654e7c99d4190d61bf226f/
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, Oct  8 2020, 12:12:24)  [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-ocp_8rcy/matplotlib.egg-info
writing /tmp/pip-pip-egg-info-ocp_8rcy/matplotlib.egg-info/PKG-INFO
writing dependency_links to /tmp/pip-pip-egg-info-ocp_8rcy/matplotlib.egg-info/dependency_links.txt
writing namespace_packages to /tmp/pip-pip-egg-info-ocp_8rcy/matplotlib.egg-info/namespace_packages.txt
writing requirements to /tmp/pip-pip-egg-info-ocp_8rcy/matplotlib.egg-info/requires.txt
writing top-level names to /tmp/pip-pip-egg-info-ocp_8rcy/matplotlib.egg-info/top_level.txt
writing manifest file '/tmp/pip-pip-egg-info-ocp_8rcy/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.
Using cached matplotlib-3.3.3.tar.gz (37.9 MB)
....
same procedure with all versions < 3.3.3
Any idea, to use pytorch/fastai aarch64 ???

[KumaTea]

Hi, I just reproduced the error.

matplotlib does not depend on torch, so I executed pip install -v matplotlib to see detailed log. It shows:

...
  creating tmp
  gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/local/include/python3.9 -c /tmp/tmpg5e7kta3.cpp -o tmp/tmpg5e7kta3.o -fvisibility=hidden
  gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/local/include/python3.9 -c /tmp/tmpq1msf3hh.cpp -o tmp/tmpq1msf3hh.o -fvisibility-inlines-hidden
  Extracting freetype-2.6.1.tar.gz
  Building freetype in build/freetype-2.6.1
  GNU make (>= 3.80) or makepp (>= 1.19) is required to build FreeType2.
  Please try

    MAKE=<GNU make command name> ./configure

  or

    MAKE="makepp --norc-substitution" ./configure
  Traceback (most recent call last):
...

Which means that it did not find a building tool.

You could try apt update && apt install build-essential, and install matplotlib again to see if it works.

---

P.S.: I would suggest that you could build locally for much better performance.