Say I have a module, we'll call it "my_imported_mod". It contains a function in it that calls another function, "myfun". The "myfun" function is in the module "my_main_mod", that imports "my_imported_mod".
The code of "my_main_mod" might look like this: ============== from my_imported_mod import *
def myfun(): print "stuff" ==============
the code of "my_imported_mod" might look like this: ============== def somefun(): myfun() ==============
When trying to execute the function somefun(), I get a NameError: global name 'myfun' is not defined
How to rectify this with minimal code change? How to let imported modules know about the namespace they are getting imported into? I do not want to restructure my code right now.
Thanks in advance for help.
James
You have had some good advice about avoiding circular imports.
I just wanted you to consider the coupling of your module. If the called function is calling a function inside the module that's calling it, this is often a clue that the inner function should be passed as a parameter to the first one.
Let me know if this isn't comprehensible and I'll give you an example, but to show this being done inside a single module I present the code below:
>>> def caller(f, arg): ... return f(arg) ... >>> def call(summat): ... print summat * 3 ... >>> caller(call, 21) 63 >>> caller(call, "string") stringstringstring
This also demonstrates quite nicely how Python doesn't choose to discriminate between integers and strings at compile time, applying the correct definition of multiplication when the operation actually has to be performed.
Some people hate this, most people who read comp.lang.python regularly will be quite happy to explain why it's a Good Thing (tm).
regards Steve -- http://mail.python.org/mailman/listinfo/python-list
