(no subject)

[ewedistrict]

a couple fun tricks in python I've discovered recently:

Change the arguments a function accepts with a decorator:

>>> def fillin(func):
...   def ret():
...     func("hi")
...   return ret
...
>>> @fillin
... def a(arg):
...   print arg
...
>>> a()
hi
>>>

If you want to be a real jerk about it, you can define a function which defines and returns a decorator, which in turn defines a function which calls the original function, substituting the parameter passed into the _decorator at definition_. I can't think of any good reason to do this, but it's sort of neat.

>>> def fillin(arg):
...   def decor(func):
...     def ret():
...       func(arg)
...     return ret
...   return decor
...
>>> @fillin("hi")
... def a(arg):
...   print arg
...
>>> a()
hi