window下pip安装模块报错：‘utf-8‘ codec can‘t decode byte 0xd5 in position 18: invalid continuation byte

问题：

这个时由于我按照一个模块，导致出现这样的错误。

错误代码：

Collecting pdoc
  Using cached pdoc-0.3.2.tar.gz (76 kB)
ERROR: Exception:
Traceback (most recent call last):
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\cli\base_command.py", line 188, in _main
    status = self.run(options, args)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\cli\req_command.py", line 185, in wrapper
    return func(self, options, args)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\commands\install.py", line 333, in run
    reqs, check_supported_wheels=not options.target_dir
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 179, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 362, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 314, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(req)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\operations\prepare.py", line 488, in prepare_linked_requirement
    req, self.req_tracker, self.finder, self.build_isolation,
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\operations\prepare.py", line 91, in _get_prepared_distribution
    abstract_dist.prepare_distribution_metadata(finder, build_isolation)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\distributions\sdist.py", line 40, in prepare_distribution_metadata
    self.req.prepare_metadata()
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\req\req_install.py", line 550, in prepare_metadata
    self.metadata_directory = self._generate_metadata()
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\req\req_install.py", line 530, in _generate_metadata
    details=self.name or "from {}".format(self.link)
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\operations\build\metadata_legacy.py", line 73, in generate_metadata
    command_desc='python setup.py egg_info',
  File "d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\utils\subprocess.py", line 201, in call_subprocess
    line = console_to_str(proc.stdout.readline())
  File "d:\python_work_tools\python3.6.8\lib\codecs.py", line 321, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd5 in position 18: invalid continuation byte

解决步骤：

从最后一个往上查找错误的代码：

找到第二个时候，搜索encoding时候，发现了 我之前改的一个代码。我记得之前安装

d:\python_work_tools\python3.6.8\lib\site-packages\pip\_internal\utils\subprocess.py

之前安装模块，时定位到这个地方，修改encoding为utf-8时，问题解决，现在定位到这里，发现utf-8不能解决，所以把下面的一行，注释，使用原来的代码，结果就解决问题了。

成功安装：