CODEWITHSUNDEEP
pythonerror-handling
user2510612
user2510612

Reputation: 45

Python Error: OSError: [Errno 22] Invalid argument

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']

Upvotes: 4

Views: 44282

Answers (3)

Anuj Kumar
Anuj Kumar

Reputation: 91

Avoid including special characters like \a, \b, \t, \n, \r in your directory path. Instead use double slash whenever neccessary. Like \a, \b, \t, \n, \r.

For example FILEPATH: E:\android\new_dir\raw_data\books\Harry.csv should be written as E:\\android\\new_dir\\raw_data\\books\Harry.csv

Upvotes: 0

Hiep Tran
Hiep Tran

Reputation: 4093

Add one more "/" in the last "/" of path for example: open('C:\Python34\book.csv') to open('C:\Python34\\\book.csv')

Upvotes: 1

Martijn Pieters
Martijn Pieters

Reputation: 1121744

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.

Upvotes: 4

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