direct print to log file

Dave Angel davea at
Tue Oct 5 16:41:53 CEST 2010

  On 2:59 PM, Dirk Nachbar wrote:
> How can I direct all print to a log file, eg some functions have their
> own print and I cannot put a f.write() in front of it.
> Dirk

When code does a print() without specifying a file, it goes to 
sys.stdout     So you just have to create a new file object and bind 
sys.stdout to it.


import sys

sys.stdout = open("mylogfile.txt", "w")
or in your case   sys.stdout = f

If you want to be able to go back to the original, then first bind 
another symbol to it.
orig = sys.stdout
sys.stdout = f
----do stuff----
sys.stdout = orig


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