ERROR: Package ‘networkx‘ requires a different Python: 3.8.10 not in ‘＞=3.9‘

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thomas@ubuntu:~$ pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu

结果报错：

ERROR: Package 'networkx' requires a different Python: 3.8.10 not in '>=3.9'

查询python的版本

thomas@ubuntu:~$ python3 --version
Python 3.8.10

需要安装最新版的python

参考链接:
https://blog.csdn.net/DEVELOPERAA/article/details/133743389

$ sudo add-apt-repository ppa:deadsnakes/ppa
$ sudo apt update
$ sudo apt install python3.11

设置默认版本

如果您在 Ubuntu 系统中安装了多个版本的 Python，并且只想将一个版本设置为默认版本，那么您需要执行一些额外的步骤，如下

$ python3 --version
Python 3.8.10
$ ls /usr/bin/python3.*
/usr/bin/python3.11  /usr/bin/python3.8  /usr/bin/python3.8-config  /usr/bin/python3.8-coverage
$ sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 1
update-alternatives: using /usr/bin/python3.8 to provide /usr/bin/python3 (python3) in auto mode
$ sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 2
update-alternatives: using /usr/bin/python3.11 to provide /usr/bin/python3 (python3) in auto mode
$ sudo update-alternatives --config python3
There are 2 choices for the alternative python3 (providing /usr/bin/python3).

  Selection    Path                 Priority   Status
------------------------------------------------------------
* 0            /usr/bin/python3.11   2         auto mode
  1            /usr/bin/python3.11   2         manual mode
  2            /usr/bin/python3.8    1         manual mode

Press <enter> to keep the current choice[*], or type selection number: 0
$ python3 --version   
Python 3.11.8

再次执行

pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu

报错

ModuleNotFoundError: No module named 'distutils.util'
 

由于刚刚安装了python3.11，所以需要安装python3.11-distutils

sudo apt-get install python3.11-distutils

再次执行

pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu
 

报错：

ImportError: cannot import name 'html5lib' from 'pip._vendor' (/usr/lib/python3/dist-packages/pip/_vendor/__init__.py)
 

这里可以参考

https://zhuanlan.zhihu.com/p/664770225

thomas@ubuntu:~$ pip show pip
Name: pip
Version: 20.0.2

curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11

修改/usr/bin/pip3，版本修改为24.0

sudo vi /usr/bin/pip3

#!/usr/bin/python3
# EASY-INSTALL-ENTRY-SCRIPT: 'pip==24.0','console_scripts','pip3'
__requires__ = 'pip==24.0'
import re
import sys
from pkg_resources import load_entry_point

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
    sys.exit(
        load_entry_point('pip==24.0', 'console_scripts', 'pip3')()
    )
 

再次执行就OK了

pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu

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