记一次pip/pip3安装uwsgi报错

背景

本来是想着在centos 7.9的主机上面部署一个flask应用，采用的方式是linux+nginx+uwsgi来进行发布，其他的都没有问题，但是在使用pip安装uwsgi时报错了，安装不成功，查了很多方法：试过把pip更新、安装python3-devel等等，但都是不行，最后还是得靠自己，研究了下pip安装方式，发现安装uwsgi是编译安装的，最后一查询发现gcc-c++没有装，安装之后再去安装uwsgi发现就成功。

问题描述

下面是我安装的时候的报错：

[root@* ~]# sudo pip3 install uwsgi

WARNING: Running pip install with root privileges is generally not a good idea. Try pip3 install --user instead.

Collecting uwsgi

Using cached https://files.pythonhosted.org/packages/b3/8e/b4fb9f793745afd6afcc0d2443d5626132e5d3540de98f28a8b8f5c753f9/uwsgi-2.0.21.tar.gz

Installing collected packages: uwsgi

Running setup.py install for uwsgi ... error

Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;file='/tmp/pip-build-8796okps/uwsgi/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /tmp/pip-2_lro4bs-record/install-record.txt --single-version-externally-managed --compile:

/usr/lib64/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution option: 'descriptions'

warnings.warn(msg)

running install

using profile: buildconf/default.ini

detected include path: ['/usr/include', '/usr/local/include']

Traceback (most recent call last):

File "/tmp/pip-build-8796okps/uwsgi/uwsgiconfig.py", line 750, in init

gcc_version_components = gcc_version.split('.')

AttributeError: 'NoneType' object has no attribute 'split'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-build-8796okps/uwsgi/setup.py", line 143, in <module>
    'Programming Language :: Python :: 3.11',
  File "/usr/lib/python3.6/site-packages/setuptools/__init__.py", line 129, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib64/python3.6/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib64/python3.6/distutils/dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "/usr/lib64/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/tmp/pip-build-8796okps/uwsgi/setup.py", line 77, in run
    conf = uc.uConf(get_profile())
  File "/tmp/pip-build-8796okps/uwsgi/uwsgiconfig.py", line 758, in __init__
    raise Exception("you need a C compiler to build uWSGI")
Exception: you need a C compiler to build uWSGI

----------------------------------------

Command "/usr/bin/python3 -u -c "import setuptools, tokenize;file='/tmp/pip-build-8796okps/uwsgi/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /tmp/pip-2_lro4bs-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-8796okps/uwsgi/

解决方案

[root@* ~]# yum -y install python3-devel

[root@* ~]# yum -y installl gcc-c++

安装好之后再pip安装uwsgi就没问题了。