Jakob Bowyer
2013-01-02 02:46:08
How about,
if isinstance(x, int):
but a cleaner way would simply be
sum(z for z in y if isinstance(z, int))
This question seems mind-boggling simple, yet I can't figure it out. I know you can check datatypes in python, but how can you set a conditional based on the datatype? For instance, if I have to write a code that sorts through a dictionary/list and adds up all the integers, how do I isolate the search to look for only integers?
I guess a quick example would look something like this:
y = []
for x in somelist:
if type(x) == <type 'int'>: ### <--- psuedo-code line
y.append(x)
print sum(int(z) for z in y)
So for line 3, how would I set such a conditional?
How about,
if isinstance(x, int):
but a cleaner way would simply be
sum(z for z in y if isinstance(z, int))
for further reading: Differences between isinstance() and type() in python
Yes, very good approach to what he wants to do. However, might be worthwhile pointing out the answer to his question is
if type(x) == intbut why that's a bad idea.