Hi;
I am trying to run a function inside a continuing loop, but do not seem
to be able to pass any parameters (arguments ) when I do so.
I have placed working and non-working code , with output below.
## This works:
def loop(fn ):
for i in range(5):
fn( )
def this_function(a=" i am not a string"):
print( a )
loop(this_function)
## with output:
>>>
i am not a string
i am not a string
i am not a string
i am not a string
i am not a string
>>>
## But , this does not :
def loop(fn ):
for i in range(5):
fn( )
def this_function(a=" i am not a string"):
print( a )
loop(this_function("I am a string") ) ## note the only change is here
## With this as output:
>>>
I am a string
Traceback (most recent call last):
File "/home/jeff/MyPythonStuff/call_sub.py", line 9, in <module>
loop(this_function("I am a string") )
File "/home/jeff/MyPythonStuff/call_sub.py", line 4, in loop
fn( )
TypeError: 'NoneType' object is not callable
>>>
My OS is Debian 64 bit
I get the same output for both python2.7 and Python3.1
I think this should be do-able but I am in need of a clue.
Thanks.
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