On 8/4/2010 1:23 PM, Pete wrote:
Hi,
I'm trying to understand the syntax for reflection in python. I was
wondering about this.
From the example on diveintopython:
http://diveintopython.org/power_of_introspection/index.html
import statsout
def output(data, format="text"):
output_function = getattr(statsout,"output_%s" % format,
statsout.output_text)
return output_function(data)
I was wondering about how to make this work if the function that you
are trying to call is not in a module.
Everything in Python is in a module. I suspect you mean not in an
imported module, e.g. in the main module. Whose __name__ is '__main__'.
A reference to the main module can be found:
import sys
main = sys.modules['__main__']
Is that possible?
Something like this:
def output_text(data):
return_value = "This is text: " + data
return return_value
def output(data, format="text"):
output_function = getattr(*****,"output_%s" % format,
statsout.output_text)
return output_function(data)
What I can't figure out is what to put in place of *****. I've tried
globals()['__name__'], in various forms, to no avail.
Replace those stars with main as derived above.
globals()['output_text'] will also give you a reference to the function.
--
Bob Gailer
919-636-4239
Chapel Hill NC
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