On Thu, 02 Mar 2006 19:24:48 -0800, mforbes wrote:
[snip]
> I know, but the point is that I want to allow the user of the module to be
> able to specify which sqrt function should be used depending on the type
> of x. Importing math in the module would prevent the user from using f()
> with complex types (or dimensioned types for another example).
If I don't misunderstood the problem, you can define an "init" method for
your module_g
(code not tested)
module_g.py
-----------
_functions = {}
def init(mathmodule):
_function['sqrt'] = getattr(mathmodule, 'sqrt', None)
def _get(name):
try:
return _functions[name]
except KeyError:
raise TypeError("you have to initialize module_g")
def sqrt(x):
return _get('sqrt')(x)
main.py
-------
import math
import module_g
module_g.init(math)
print module_g.sqrt(2)
HTH
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