Question

I am new to Python and having some trouble with the stderr.write function. I will try to illustrate it with code. Before I was doing this:

print "Unexpected error! File {0} could not be converted." .format(src)

But then I wanted to separate the error messages from other status messages so I tried doing this:

sys.stderr.write "Unexpected error! File %s could not be converted." src

But this results in error. I googled it as well but i couldn’t find anything. Could anyone please help me out here. How can I print the string src using stderr.write?

Answer 1

In Python 2.x:

sys.stderr.write("Unexpected error! File %s could not be converted." % src)

Or, in Python 2.x and 3.x:

sys.stderr.write("Unexpected error! File {0} could not be converted.".format(src))