最近在折腾Django的WSGI应用，虽然Django自带的runserver很方便，但是对于复杂的功能它就无能为力了。

首先在Windows上遇到坑了，然后在windows10自带的Ubuntu遇到坑了，最后在虚拟机上总算解决了。

从以前的文章Django笔记《Django 学习笔记（二）第一个网页》可以看出我用的是windows10系统中的cmd来进行Django操作的，由于gunicorn应用是在unix系统中运行的，强制性在win平台运行就出错了。

1.windows遇到坑：

首先 cmd中输入：pip3 install gunicorn ，安装成功后，切换到项目目录(G:/Django/hello)，具体操作是先切换到G盘，直接输入G:，接着输入cd Django\hello 就会出现 G:\Django\hello>这种情况。然后运行gunicorn，在Django项目中格式是：gunicorn yourproject.wsgi [-b 127.0.0.1.8000]，括号内为选填，其他命令参数可以发送 gunicorn -h得到帮助文档。我这边的项目是hello，所以我的命令操作是：gunicorn hello.wsgi ，然后呢，出错ModuleNotFoundError: No module named 'pwd'，没有pwd模块，好吧，没有找呗。找到后的代码贴在下面了，把找到的pwd.py放进了python3的安装目录D:\Program Files\Python\Python36\Lib，接着我们再运行gunicorn hello.wsgi ，结果又出错了：AttributeError: module 'socket' has no attribute 'AF_UNIX' ，然后我又在网上找，gunicorn是unix系统中的应用，将其用在windows上兼容性是个大大的问题，如果按照错误一个个解决将是一个庞大的工程，所以转战unix系统，windows在gunicorn上弃坑。

G:\Django\hello>gunicorn hello.wsgi
Traceback (most recent call last):
  File "d:\program files\python\python36\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "d:\program files\python\python36\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "D:\Program Files\Python\Python36\Scripts\gunicorn.exe\__main__.py", line 5, in <module>
  File "d:\program files\python\python36\lib\site-packages\gunicorn\app\wsgiapp.py", line 10, in <module>
    from gunicorn.app.base import Application
  File "d:\program files\python\python36\lib\site-packages\gunicorn\app\base.py", line 12, in <module>
    from gunicorn import util
  File "d:\program files\python\python36\lib\site-packages\gunicorn\util.py", line 13, in <module>
    import pwd
ModuleNotFoundError: No module named 'pwd'

from os import * 
from pwd import * 

def get_username():
    return getpwuid(getuid())[0]

G:\Django\hello>gunicorn hello.wsgi
Traceback (most recent call last):
  File "d:\program files\python\python36\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "d:\program files\python\python36\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "D:\Program Files\Python\Python36\Scripts\gunicorn.exe\__main__.py", line 5, in <module>
  File "d:\program files\python\python36\lib\site-packages\gunicorn\app\wsgiapp.py", line 10, in <module>
    from gunicorn.app.base import Application
  File "d:\program files\python\python36\lib\site-packages\gunicorn\app\base.py", line 13, in <module>
    from gunicorn.arbiter import Arbiter
  File "d:\program files\python\python36\lib\site-packages\gunicorn\arbiter.py", line 18, in <module>
    from gunicorn import sock, systemd, util
  File "d:\program files\python\python36\lib\site-packages\gunicorn\sock.py", line 101, in <module>
    class UnixSocket(BaseSocket):
  File "d:\program files\python\python36\lib\site-packages\gunicorn\sock.py", line 103, in UnixSocket
    FAMILY = socket.AF_UNIX
AttributeError: module 'socket' has no attribute 'AF_UNIX'