Python错误：OSError：[Errno 22]参数无效 [英] Python Error: OSError: [Errno 22] Invalid argument

问题描述

我正在使用一个自动化框架，我经历了许多迭代之后的随机错误，如下所示。有人可以帮助我了解这可能对应于什么!!

  _os.environ ['PATH'] = r'C：\\ \\ DAL;'+ _os.environ ['PATH'] 
文件c：\Python26\lib\os.py，第420行，__setitem__ 
 putenv（key，item）
 OSError：[Errno 22]参数无效
  

函数调用失败的地方：

功能：

  plugin_xml_file_name = plugin_name 
 else：
 plugin_xml_file_name = plugin_path +\\+ plugin_name 
＃
 
 _os.environ ['PATH'] = r'C：\Intel\DAL;'+ _os.environ ['PATH'] 
 _os.environ ['PATH'] = r'C：\intel\dal;'+ _os.environ ['PATH'] 
 _os.environ ['PATH' ] = _lakemore_path +';'+ _os.environ ['PATH'] 
 _os.environ ['PATH'] = plugin_path +';'+ _os.environ ['PATH'] 
  

解决方案

您正在创建太长的ap运动和操作系统不再接受更长的环境变量。

只需扩展路径 。测试您添加的路径的存在：

  path = _os.environ ['PATH']。split（_os。 （r'C：\Intel\DAL'，r'C：\intel\dal'，_lakemore_path，plugin_path）
如果额外不在路径中：
 b $ b _os.environ ['PATH'] = _os.pathsep.join（extra，_os.environ ['PATH']）
  

此代码仅在尚未存在的情况下才添加新元素。

I am using an automation framework and I am getting random error after many iterations which is as follows. Can someone help me understand what this could correspond to !!

_os.environ['PATH'] = r'C:\DAL;' + _os.environ['PATH']
  File "c:\Python26\lib\os.py", line 420, in __setitem__
    putenv(key, item)
OSError: [Errno 22] Invalid argument

Function Call where it fails:

function:

    plugin_xml_file_name = plugin_name
else:
    plugin_xml_file_name = plugin_path + "\\" + plugin_name
#

_os.environ['PATH'] = r'C:\Intel\DAL;' + _os.environ['PATH']
_os.environ['PATH'] = r'C:\intel\dal;' + _os.environ['PATH']
_os.environ['PATH'] = _lakemore_path + ';' + _os.environ['PATH']
_os.environ['PATH'] = plugin_path + ';' + _os.environ['PATH']

解决方案

You are creating too long a path and the OS no longer accepts a longer environment variable.

Extend the path only once. Test for the presence of the paths you are adding:

path = _os.environ['PATH'].split(_os.pathsep)
for extra in (r'C:\Intel\DAL', r'C:\intel\dal', _lakemore_path, plugin_path):
    if extra not in path:
        _os.environ['PATH'] = _os.pathsep.join(extra, _os.environ['PATH'])

This code only adds new elements if not already present.

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