Appending a log file and see progress as program executes

[Diez B. Roggisch]

Karim Ali schrieb:
> Hi,
> 
> I am writing a program that will take several days to execute :) and 
> would like to append to a log file but be able to open that file at any 
> time and see the errors that have occured.
> 
> So this is what I am doing:
> 
> ----------------------------------------------
> flog = open('out.log', 'a')
> ....
> when needed:
> sys.stdout=flog
> print "error message"
> ------------------------------------------------
> 
> This will print directly to log. I use sys.stdout so i can quickly (in 
> code) change back and forth between errors displayed on screen and 
> errors logged..
> 
> This works great. The only problem is that I cant see anything in the 
> log file when I try to open it say with notepad while the program is 
> running...and this is not good at all!
> 
> Any suggestions are appreciated.

install cygwin bash, and use

tail out.log


Diez