title: Why is there an error installing the pyinstaller?
body: <p>I tried to install the pyinstaller with the command <code>pip install pyinstaller</code> and got an error:</p>
  
  <pre><code>C:\Users\kshnk&gt;pip install pyinstaller
  Collecting pyinstaller
    Downloading https://files.pythonhosted.org/packages/e2/c9/0b44b2ea87ba36395483a672fddd07e6a9cb2b8d3c4a28d7ae76c7e7e1e5/PyInstaller-3.5.tar.gz (3.5MB)
       |████████████████████████████████| 3.5MB 2.2MB/s
    Installing build dependencies ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\python37\python.exe' 'c:\python37\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\kshnk\AppData\Local\Temp\pip-build-env-11qk42u_\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools&gt;=40.8.0' wheel
         cwd: None
    Complete output (24 lines):
    Traceback (most recent call last):
      File "c:\python37\lib\runpy.py", line 193, in _run_module_as_main
        "__main__", mod_spec)
      File "c:\python37\lib\runpy.py", line 85, in _run_code
        exec(code, run_globals)
      File "c:\python37\lib\site-packages\pip\__main__.py", line 16, in &lt;module&gt;
        from pip._internal import main as _main  # isort:skip # noqa
      File "c:\python37\lib\site-packages\pip\_internal\__init__.py", line 40, in &lt;module&gt;
        from pip._internal.cli.autocompletion import autocomplete
      File "c:\python37\lib\site-packages\pip\_internal\cli\autocompletion.py", line 8, in &lt;module&gt;
        from pip._internal.cli.main_parser import create_main_parser
      File "c:\python37\lib\site-packages\pip\_internal\cli\main_parser.py", line 7, in &lt;module&gt;
        from pip._internal.cli import cmdoptions
      File "c:\python37\lib\site-packages\pip\_internal\cli\cmdoptions.py", line 24, in &lt;module&gt;
        from pip._internal.models.search_scope import SearchScope
      File "c:\python37\lib\site-packages\pip\_internal\models\search_scope.py", line 11, in &lt;module&gt;
        from pip._internal.utils.misc import normalize_path, redact_password_from_url
      File "c:\python37\lib\site-packages\pip\_internal\utils\misc.py", line 58, in &lt;module&gt;
        from typing import cast, Tuple
      File "c:\python37\lib\site-packages\typing.py", line 1356, in &lt;module&gt;
        class Callable(extra=collections_abc.Callable, metaclass=CallableMeta):
      File "c:\python37\lib\site-packages\typing.py", line 1004, in __new__
        self._abc_registry = extra._abc_registry
    AttributeError: type object 'Callable' has no attribute '_abc_registry'
    ----------------------------------------
  ERROR: Command errored out with exit status 1: 'c:\python37\python.exe' 'c:\python37\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\kshnk\AppData\Local\Temp\pip-build-env-11qk42u_\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools&gt;=40.8.0' wheel Check the logs for full command output.
  </code></pre>
  
  <p>OS: Windows 10 ver 1903</p>
  
  <p>Python 3.7.3</p>