说明：

这个错误的原因我也不太清楚，因为我之前打包是没有问题的，这次突然想打包一个文件，然后就报错了，所以，搜索了一番，找到一个大概意思看懂了，但是没有写出解决步骤，所以自己尝试一下，成功解决。所以记录下来，嘻嘻

一、问题：

pyinstaller 打包报错：

具体错误代码：

PS D:\zjf_workspace\000、爬虫代码-基础的\scrapy_100_工具\11、视频处理> pyinstaller -F .\cv2视频截帧.py
525 INFO: PyInstaller: 3.5
525 INFO: Python: 3.6.8
527 INFO: Platform: Windows-10-10.0.17134-SP0
530 INFO: wrote D:\zjf_workspace\000、爬虫代码-基础的\scrapy_100_工具\11、视频处理\cv2视频截帧.spec
566 INFO: UPX is not available.
575 INFO: Extending PYTHONPATH with paths
['D:\\zjf_workspace\\000、爬虫代码-基础的\\scrapy_100_工具\\11、视频处理',
 'D:\\zjf_workspace\\000、爬虫代码-基础的\\scrapy_100_工具\\11、视频处理']
576 INFO: checking Analysis
577 INFO: Building Analysis because Analysis-00.toc is non existent
577 INFO: Initializing module dependency graph...
601 INFO: Initializing module graph hooks...
604 INFO: Analyzing base_library.zip ...
Traceback (most recent call last):
  File "d:\tools\python3.6\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "d:\tools\python3.6\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "D:\tools\Python3.6\Scripts\pyinstaller.exe\__main__.py", line 9, in <module>
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\__main__.py", line 111, in run
    run_build(pyi_config, spec_file, **vars(args))
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\__main__.py", line 63, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\building\build_main.py", line 844, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\building\build_main.py", line 791, in build
    exec(code, spec_namespace)
  File "D:\zjf_workspace\000、爬虫代码-基础的\scrapy_100_工具\11、视频处理\cv2视频截帧.spec", line 17, in <module>
    noarchive=False)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\building\build_main.py", line 243, in __init__
    self.__postinit__()
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\building\datastruct.py", line 158, in __postinit__
    self.assemble()
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\building\build_main.py", line 349, in assemble
    excludes=self.excludes, user_hook_dirs=self.hookspath)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\depend\analysis.py", line 608, in initialize_modgraph
    required_mods += collect_submodules(m)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\utils\hooks\__init__.py", line 624, in collect_submodules
    repr(pkg_dir), package))
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\utils\hooks\__init__.py", line 83, in exec_statement
    return __exec_python_cmd(cmd)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\utils\hooks\__init__.py", line 72, in __exec_python_cmd
    txt = exec_python(*cmd, env=pp_env)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\compat.py", line 637, in exec_python
    return exec_command(*cmdargs, **kwargs)
  File "d:\tools\python3.6\lib\site-packages\PyInstaller\compat.py", line 427, in exec_command
    out = out.decode(encoding)
AttributeError: 'str' object has no attribute 'decode'

错误图：