安装mitmproxy时候遇到错误Building wheel

安装mitmproxy，pip install mitmproxy

遇到一个这样的错误

Building wheels for collected packages: urwid

  Building wheel for urwid (setup.py) ... error

  ERROR: Command errored out with exit status 1:

  command: 'd:\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\lzc\\AppData\\Local\\Temp\\pip-install-n_qbun6y\\urwid\\setup.py'"'"'; __file__='"'"'C:\\Users\\lzc\\AppData\\Local\\Temp\\pip-install-n_qbun6y\\urwid\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\lzc\AppData\Local\Temp\pip-wheel-mpzxt06o'

      cwd: C:\Users\lzc\AppData\Local\Temp\pip-install-n_qbun6y\urwid\

  Complete output (101 lines):

  running bdist_wheel

  running build

  running build_py

  creating build

======================

解决办法：

C:\Users\lzc>pip install -U pip setuptools wheel

Requirement already up-to-date: pip in d:\anaconda3\lib\site-packages (20.0.2)

Collecting setuptools

  Using cached setuptools-46.1.3-py3-none-any.whl (582 kB)

Collecting wheel

  Downloading wheel-0.34.2-py2.py3-none-any.whl (26 kB)

ERROR: tensorboard 2.0.2 has requirement requests<3,>=2.21.0, but you'll have requests 2.20.0 which is incompatible.

Installing collected packages: setuptools, wheel

  Attempting uninstall: setuptools

    Found existing installation: setuptools 42.0.1

    Uninstalling setuptools-42.0.1:

      Successfully uninstalled setuptools-42.0.1

  Attempting uninstall: wheel

    Found existing installation: wheel 0.31.1

    Uninstalling wheel-0.31.1:

      Successfully uninstalled wheel-0.31.1

Successfully installed setuptools-46.1.3 wheel-0.34.2