How to refer to the current module?
Stargaming
stargaming at gmail.com
Mon Jan 7 18:40:28 EST 2008
On Mon, 07 Jan 2008 05:21:42 -0800, Mike wrote:
> I want to do something like the following (let's pretend that this is in
> file 'driver.py'):
>
> #!/bin/env python
>
> import sys
>
> def foo():
> print 'foo'
>
> def bar(arg):
> print 'bar with %r' % arg
>
> def main():
> getattr(driver, sys.argv[1])(*sys.argv[2:])
>
> if __name__=='__main__':
> main()
>
>
> Essentially what I'm trying to get at here is dynamic function
> redirection, like a generic dispatch script. I could call this as
>
> python driver.py foo
>
> or
>
> python driver.py bar 15
>
> and at any time later I can add new functions to driver.py without
> having to update a dispatch dict or what-have-you.
>
> The problem is, 'driver' doesn't exist in main() line 1. If I 'import
> driver' from the command line, then getattr(driver, ...) works, but it's
> not bound here.
>
> Is there any way around this? Can I somehow scope the 'current module'
> and give getattr(...) an object that will (at run time) have the
> appropriate bindings?
>
> Thanks in advance for all advice!
>
> Mike
`__main__` (after you did ``import __main__``) could be an option as
well. But I'd prefer a custom dictionary for your dispatch, rather than
some magic with the module's names.
See http://docs.python.org/ref/programs.html for details on __main__.
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