Python OSError Errno 2 No such file or directory

Question

I have a 100 lines  3 years old python scraper that now bug  Starting lines are   import urllib  re  os  sys  time      line 1  import modules os chdir os path dirname sys argv 0      line 2  all works in script s folder  gt  relative address    rest of my script here     When run     cd  my folder   python script py   I receive the error   python script py  Traceback  most recent call last     File  script py   line 2  in  lt module gt      os chdir os path dirname sys argv 0    OSError   Errno 2  No such file or directory       How should I read this error and what to do

User · Answer

I had this error because I was providing a string of arguments to subprocess call instead of an array of arguments  To prevent this  use shlex split   import shlex  subprocess command line    ls -a  args   shlex split command line  p   subprocess Popen args

User · Answer

Have you noticed that you don t get the error if you run  python   script py   instead of  python script py   This is because sys argv 0  will read   script py in the former case  which gives os path dirname something to work with   When you don t specify a path  sys argv 0  reads simply script py  and os path dirname cannot determine a path

User · Answer

Use os path abspath     os chdir os path dirname os path abspath sys argv 0       sys argv 0  in your case is just a script name  no directory  so os path dirname   returns an empty string    os path abspath   turns that into a proper absolute path with directory name

[python] Python: OSError: [Errno 2] No such file or directory: ''

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