Dave,
Thanks for enlightening me and providing a solution.
I am a recent Python convert (from Perl). Hence the confusion about
generators.(Coroutines are not a standard part of Perl anyway)
- Joe
Dave Angel wrote:
Joe Python wrote:
I have a generator as follows to do list calculations.
*
Joe Python wrote:
I have a generator as follows to do list calculations.
*result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))]*
The above generator, throws '*ZeroDivisionError*' exception if ListA[i] =
0.
Is there a way to say 'Don't divide by ListA[i] if its equal to 0 (wi
"Joe Python" wrote
*result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))]*
The above generator, throws '*ZeroDivisionError*' exception if ListA[i]
=
0.
Is there a way to say 'Don't divide by ListA[i] if its equal to 0 (within
that statement)'.
You could use an 'or' sidef
Thanks everyone for the responses.
- Joe
On Fri, Jun 19, 2009 at 11:09 AM, vince spicer wrote:
> Well*
>
> *result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))*if
> not ListA[i] == 0*]
>
> will exclude any results where listA[i] is 0, if you still want these in
> the result
>
Well*
*result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))*if
not ListA[i] == 0*]
will exclude any results where listA[i] is 0, if you still want these in the
result
you may want to use good'ol for statement instead of list comprehension
results = []
for x in range(len(listA))
I have a generator as follows to do list calculations.
*result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))]*
The above generator, throws '*ZeroDivisionError*' exception if ListA[i] =
0.
Is there a way to say 'Don't divide by ListA[i] if its equal to 0 (within
that statement)'.
