Re: What is print? A function?

[Michael Hoffman]

Frans Englich wrote:
Nah, I don't think it's a function, but rather a builtin "statement". But it's 
possible to invoke it as an function; print( "test" ) works fine.
That is not invoking it as a function. The parentheses are only for 
ordering the expression on the right

You can do this too:
>>> print("abc"),("def"),("ghi")
abc def ghi
So I wonder, what _is_ exactly the print statement?
Uh, a statement.
The reason I thinks about this is I need to implement a debug print for my 
program; very simple, a function/print statement that conditionally prints 
its message whether a bool is true. Not overly complex.

I tried this by overshadowing the print keyword, but that obviously didn't 
work.. Is defining a two-liner function the right way to go, or is there 
better ways to approach it?
In the long run, you might want to look into the logging module. In the 
short run:

def _debug_true(text):
    print >>sys.stderr, text
def _debug_false(text):
    pass
if command_line_debug_option:
    debug = _debug_true
else
    debug = _debug_false
That way you only have to check whether the option is true once in the 
entire run of your program, not every time you call the debug() function 
(which is presumably many times).
--
Michael Hoffman
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