By default the print statement sends to stdout
I want to send to stderr

Try

print "my meeage", file=sys.stderr

I got
SyntaxError: invalid syntax

I try

print "my message", sys.stderr

But it still sent to stdout.
What is the syntax?

I wouldn't understand Python's manual




print([object, ...][, sep=' '][, end='n'][, file=sys.stdout])ΒΆ

    Print object(s) to the stream file, separated by sep and followed by end. 
sep, end and file, if present, must be given as keyword arguments.

    All non-keyword arguments are converted to strings like str() does and 
written to the stream, separated by sep and followed by end. Both sep and end 
must be strings; they can also be None, which means to use the default values. 
If no object is given, print() will just write end.

    The file argument must be an object with a write(string) method; if it is 
not present or None, sys.stdout will be used.

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