在virtualenv中使用pip安装时出现UnicodeDecodeError

Question

我正在虚拟环境中安装Nucypher，并得到UnicodeDecodeError ，如下所示：

命令：

python -m pip install nucypher

输出：

ERROR: Exception:
Traceback (most recent call last):
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\cli\base_command.py", line 178, in main
    status = self.run(options, args)
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\commands\install.py", line 352, in run
    resolver.resolve(requirement_set)
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\resolve.py", line 131, in resolve
    self._resolve_one(requirement_set, req)
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\resolve.py", line 294, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\resolve.py", line 242, in _get_abstract_dist_for
    self.require_hashes
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\operations\prepare.py", line 362, in prepare_linked_requirement
    abstract_dist.prep_for_dist(finder, self.build_isolation)
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\operations\prepare.py", line 171, in prep_for_dist
    self.req.prepare_metadata()
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\req\req_install.py", line 553, in prepare_metadata
    metadata_name = canonicalize_name(self.metadata["Name"])
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\req\req_install.py", line 674, in metadata
    self._metadata = get_metadata(self.get_dist())
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_internal\utils\packaging.py", line 48, in get_metadata
    metadata = dist.get_metadata('METADATA')
  File "C:\Users\PRANIT\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1420, in get_metadata
    return value.decode('utf-8') if six.PY3 else value
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 185: invalid continuation byte

我正在使用Windows 10，pip 19.1.1。 在同一虚拟环境中安装Numpy ，没有出现此错误。 请建议需要做什么。 提前致谢！

Answer 1

我刚从Mac移到Windows，使用PowerShell和virtualenv时遇到了完全相同的问题。 我改用命令行代替内置的venv ，它可以正常工作。 如果您不了解virtualenv ，则可能值得尝试一下。