当我尝试使用pyinstaller时，它声称它没有安装，当我尝试安装时，它声称它已经安装了？

Question

所以标题解释了这一切。你知道吗

C:\Users\username>py -m pip install  pyinstaller
Requirement already satisfied: pyinstaller in c:\users\username\appdata\roaming\python\python37\site-packages (3.5)
Requirement already satisfied: altgraph in c:\users\username\appdata\roaming\python\python37\site-packages (from pyinstaller) (0.16.1)
Requirement already satisfied: pefile>=2017.8.1 in c:\users\username\appdata\roaming\python\python37\site-packages (from pyinstaller) (2019.4.18)
Requirement already satisfied: setuptools in c:\program files (x86)\microsoft visual studio\shared\python37_64\lib\site-packages (from pyinstaller) (40.8.0)
Requirement already satisfied: pywin32-ctypes>=0.2.0 in c:\users\username\appdata\roaming\python\python37\site-packages (from pyinstaller) (0.2.0)
Requirement already satisfied: future in c:\users\username\appdata\roaming\python\python37\site-packages (from pefile>=2017.8.1->pyinstaller) (0.18.2)

C:\Users\username>py -m pyinstaller
C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\python.exe: No module named pyinstaller

注意事项： 我使用py而不是python，因为python不工作的原因是未知的

C:\Users\username>python
'python' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\username>py
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

仅仅调用“pyinstaller”对pip也不起作用

C:\Users\username>pip
'pip' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\username>py -m pip

Usage:
  C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\python.exe -m pip <command> [options]
(...)

C:\Users\username>pyinstaller
'pyinstaller' is not recognized as an internal or external command,
operable program or batch file.

我想知道为什么这些东西对其他人也有不同的作用。你知道吗

Answer 1

阅读主页上的说明https://pyinstaller.readthedocs.io/en/stable/installation.html

尝试通过pip install pyinstaller安装。如果导致numpy错误，则通过pip install pyinstaller==3.4将pyinstaller版本降级到3.4