In <534d5506-1810-4a79-ac8f-95a664d17...@googlegroups.com> Sayth Renshaw
<flebber.c...@gmail.com> writes:
> I want to go threw and for each index error at [4] append a 0.
You want to append 0 if the list does not have at least 5 items?
> p = re.compile('\d+')
> fups = p.findall(nomattr['firstup'])
> [x[4] for x in fups if IndexError fups.append(0)]
> print(fups)
> Unsure why I cannot use append in this instance
Because that's incorrect syntax.
> how can I modify to acheive desired output?
for f in fups:
if len(f) < 5:
f.append(0)
Or, if you really want to use a list comprehension:
[f.append(0) for f in fups if len(f) < 5]
However there's no reason to use a list comprehension here. The whole
point of list comprehensions is to create a *new* list, which you don't
appear to need; you just need to modify the existing fups list.
--
John Gordon A is for Amy, who fell down the stairs
gor...@panix.com B is for Basil, assaulted by bears
-- Edward Gorey, "The Gashlycrumb Tinies"
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