In Python you can pass argument by name, instead of by position.
def f(a, b, c): print(a, b, c) print( f(c=3, b=2, a=1) )
The c=3 in this call, means send 3 to the argument named c.
Python matches the name c in the call to the argument named c in the function definition's header.
It's possible to combine positional and keyword arguments in a single call.
In this case, all positionals are matched first from left to right in the header, before keywords are matched by name:
def f(a, b, c): print(a, b, c) f(1, c=3, b=2) # a gets 1 by position, b and c passed by name # w w w.j a v a 2 s . c o m
Keywords make your calls a bit more self-documenting.
For example, a call of this form:
func(name='Bob', age=40, job='dev')