i have a list like this :
a=[1000,200,30]
and i want to get a list like this :
['01000','00200','00030']
so what can i do ,
thanks
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5 Answers
>>> a=[1000,200,30]
>>> [str(e).zfill(5) for e in a]
['01000', '00200', '00030']
1 Comment
paxdiablo
I thought that might choke on -30 but no so, it correctly gives you
-0030. +1.str.format() is the preferred way to do this if you are using Python >=2.6
>>> a=[1000, 200, 30]
>>> map("{0:05}".format, a)
['01000', '00200', '00030']
Comments
You can do it like this:
a = [1000,200,30]
b = ["%05d" % (i) for i in a]
print b
The number tells the width and the leading zero says that you want leading zeros.
Comments
map(lambda x:str(x).zfill(5),a)
2 Comments
paxdiablo
I hate this answer since all that lambda stuff makes a mockery of my beautiful grade-school teaching language, but it is useful, so +1 :-)
John La Rooy
@paxdiablo, it's also possible to pass a
str.format as the first arg to map. See my answer