redirecting print to a a file

[AndyL]

Hi,

Can I redirect print output, so it is send to a file, not stdout.

I have a large program and would like to avoid touching hundreds of print's.

Thx, Andy

[Harold Fellermann]

>>> import sys

sys.stdout = file("output","w")
print "here you go"

[AndyL]

Harold Fellermann wrote:

import sys
sys.stdout = file("output","w")
print "here you go"

And what if I want to still send the output to stdout and just a log it
in the file as well?

A.

[Sybren Stuvel]

AndyL enlightened us with:

Can I redirect print output, so it is send to a file, not stdout.
Change sys.stdout to a file object.
I have a large program and would like to avoid touching hundreds of
print's.

I can suggest using the logging module instead of print. It's much
more flexible than prints, and well suited for large programs.

Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
Frank Zappa

[AndyL]

Sybren Stuvel wrote:

I have a large program and would like to avoid touching hundreds of
print's.

I can suggest using the logging module instead of print. It's much
more flexible than prints, and well suited for large programs.

Thx for the hint. I will look into that.

A.

[Sybren Stuvel]

AndyL enlightened us with:

And what if I want to still send the output to stdout and just a log
it in the file as well?

$ python some_program.py | tee output.log

Or write a class that has a write() function and outputs to a file and
to the original value of sys.stdout (IIRC that's in sys.__stdout__)

Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
Frank Zappa

[AndyL]

Sybren Stuvel wrote:

AndyL enlightened us with:

And what if I want to still send the output to stdout and just a log
it in the file as well?

$ python some_program.py | tee output.log

Or write a class that has a write() function and outputs to a file and
to the original value of sys.stdout (IIRC that's in sys.__stdout__)

Sybren

Thx again. Python is cool, do that in C++ or Java :-)

A.

[Mirco Wahab]

AndyL wrote:

$ python some_program.py | tee output.log

Thx again. Python is cool, do that in C++ or Java :-)

Yes, thats obviously true ;-)

$> javac someprogram.java;
$> java someprogram | tee output.log

$> g++ someother.cpp -o someother
$> ./someother | tee output.log

SCNR,

Mirco