I'd like an easy way to plug in a function and arguments to be executed later so I can have a kind of wrapper around it.
In this case, I'd like to use it to benchmark, example:
def timefunc(fn, *args):
start = time.clock()
fn(args)
stop = time.clock()
return stop - start
How do I pass arguments where the number of parameters aren't known? How do I find the number of parameters? How would I even call the function once I knew the number of parameters?
Just call the function like this:
fn(*args)
timefunc(fn, *args, **kwargs), you can plug them into another function the same way: fn(*args, **kwargs)MatrixFrog's answer is the correct one, but just to complete the picture. For finding out the number of arguments simply call len, because args is a tuple:
import time
def timefunc(fn, *args):
start = time.clock()
print len(args), type(args)
fn(*args)
stop = time.clock()
return stop - start
def myfoo(a, b):
c = a + b
return c
timefunc(myfoo, 5, 6)
The print statement inside timefunc prints:
2 <type 'tuple'>
Since args is a tuple, you can access it like any other tuple.
print as well as the function?