pyinstaller打包的exe运行报错 No module named path

描述

用python开发了一个opc client应用，调试没有问题后，使用pyinstaller打包成exe，测试exe运行也没有问题，正常使用。
在某次重装win10系统后，在此运行exe就开始报错了，详细内容如下：

----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 56377)
Traceback (most recent call last):
  File "SocketServer.py", line 290, in _handle_request_noblock
  File "SocketServer.py", line 318, in process_request
  File "SocketServer.py", line 331, in finish_request
  File "SocketServer.py", line 652, in __init__
  File "BaseHTTPServer.py", line 340, in handle
  File "BaseHTTPServer.py", line 328, in handle_one_request
  File "httpserver.py", line 189, in do_POST
  File "httpserver.py", line 49, in handle_getOpcClientDetail
  File "opc_client.py", line 17, in open_client
  File "OpenOPC.py", line 171, in __init__
  File "site-packages\win32com\client\gencache.py", line 534, in EnsureDispatch
  File "site-packages\win32com\client\gencache.py", line 518, in EnsureModule
  File "site-packages\win32com\client\gencache.py", line 287, in MakeModuleForTypelib
  File "site-packages\win32com\client\makepy.py", line 286, in GenerateFromTypeLibSpec
  File "site-packages\win32com\client\gencache.py", line 548, in AddModuleToCache
  File "site-packages\win32com\client\gencache.py", line 627, in _GetModule
  File "c:\users\22078863\appdata\local\temp\tmpazmzya\gen_py\28E68F91-8D75-11D1-8DC3-3C302A000000x0x1x0.py", line 10, in <module>
    import win32com.client.CLSIDToClass, pythoncom, pywintypes
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 161, in load_module
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 395, in load_module
  File "site-packages\pythoncom.py", line 2, in <module>
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 161, in load_module
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 395, in load_module
  File "site-packages\win32\lib\pywintypes.py", line 2, in <module>
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 161, in load_module
  File "Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 395, in load_module
  File "os.py", line 120, in <module>
ImportError: No module named path
----------------------------------------

实在是搞不懂是为啥，path不是os模块中的吗，python自带啊，怎么还会出错，查了一天也没弄明白咋回事。
后来实在没办法了，将程序重新打包成了文件夹的形式，再运行就没有问题了。

总结

和windows环境可能有关系，因为同一个程序有的电脑可以运行，而且出问题的这台电脑之前也可以运行，但是重装系统之后就开始报错了。难道重装系统之后环境中缺少了某个依赖？
和pyinstaller的打包有关系，打包成文件夹就没有问题，打包成exe就有问题，可能打包成exe的时候有些依赖没打包进去，但是我不指定是哪出了问题。
实在搞不懂，大家有什么思路希望不吝赐教。