import sys

print 'Dive in'                                          
saveout = sys.stdout                                    
fsock = open('out.log', 'w')
sys.stdout = fsock                                
print 'This message will be logged but not displayed'
print 'This message should be logged and also displayed'
sys.stdout = saveout                                    
fsock.close()    

This redirects all output from Python to the open file.
At the same time I'd like to see all printed text on screen.
How can I do this?

Thanks

class writer :
        def __init__(self, *writers) :
                self.writers = writers

        def write(self, text) :
                for w in self.writers :
                        w.write(text)

import sys

saved = sys.stdout
fout = file('out.log', 'w')
sys.stdout = writer(sys.stdout, fout)
print "There you go."
sys.stdout = saved
fout.close()

#!/usr/bin/env python

import sys

class MyWriter:

    def __init__(self, stdout, filename):
        self.stdout = stdout
        self.logfile = file(filename, 'a')

    def write(self, text):
        self.stdout.write(text)
        self.logfile.write(text)

    def close(self):
        self.stdout.close()
        self.logfile.close()

writer = MyWriter(sys.stdout, 'log.txt')
sys.stdout = writer

print 'test'

Cheers,

// m

works perfect. Just had to change ´file´ to ´open´ for my Python 2.1.
Adding the method ´flush(self)´ to Writer helped to get my
´sys.stdout.flush()´ to work.

Thanks also to two inches (previous post).