Question

yo folks, I have an issue with clearing lists. In the current program which I'm coding, I have a method that clears a certain number of lists. This is rather inconvenient since during one part of the program where this method is used, it would be a lot more helpful if it only deleted the last elementfrom the lists. Is there anyway in which I can set index numbers as parameters to my method to solve this problem?

The code for the method

def clearLists(self):    del self.Ans[:]    del self.masses[:]

Whenever I want to use this method, I merely write self.ClearLists() and it deletes every element in a list.

I don't see the relation between the question title and body. — Dec 2 '11 at 14:54
Sorry about that, that was a leftover from an old, unposted question, now fixxxed. — Dec 2 '11 at 14:59
If you don't want to clear your lists, why would you call a method called clearLists? — Dec 2 '11 at 15:07
Am I the only what that do not understand what are you looking for? — Dec 2 '11 at 15:52

35k 12 78 130 · Answer 1 · 2011-12-02 14:54:03Z

35

you can use lst.pop() or del lst[-1]

answered

Dec 2 '11 at 14:54

35k

12

78

130

that pop() method rocks, thanks –

Nov 18 '14 at 22:49

pop() removes and returns the item, in case you don't want have a return use del ;) –

2 days ago

score 4 · Answer 2

To delete the last element of the lists, you could use:

def deleteLast(self):    if len(self.Ans) > 0:        del self.Ans[-1]    if len(self.masses) > 0:        del self.masses[-1]

2 Answers