I have str that are like '60' or '100'. I need the str to be '00060' and '00100',
How can i do this? code is something like this: I was using '0'+'0'+'0' as plug. now need to fix d==0006000100
a4 ='60'
a5 ='100'
d=('0'+'0'+'0'+a4+'0'+'0'+a5)
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5 Answers
Since you are manipulating strings, str.zfill() does exactly what you want.
>>> s1, s2 = '60', '100'
>>> print s1.zfill(5), s2.zfill(5)
00060 00100
Comments
Like this:
num = 60
formatted_num = u'%05d' % num
See the docs for more information about formatting numbers as strings.
If your number is already a string (as your updated question indicates), you can pad it with zeros to the right width using the rjust string method:
num = u'60'
formatted_num = num.rjust(5, u'0')
4 Comments
Merlin
it comes as '60' i am combining example 0006000100,
Cameron
@user: OK, it seems like Wang's answer (using
zfill) is the way to go in your case since it's built for exactly the type of thing you're doing
Lauritz V. Thaulow
From docs.python.org/release/3.0.1/whatsnew/3.0.html: "the % operator is still supported; it will be deprecated in Python 3.1 and removed from the language at some later time.". Use
"".format() instead for future compatibility: u"{0:0>5d}".format(60) or u"{0:0>5s}".format(str(60)).Lauritz V. Thaulow
I just discovered you can use !s in the format string to force string conversion, so you need only a single case to handle both 60 and '60':
"{0!s:0>5s}".format(60)If "60" is already a string, you have to convert it to a number before applying the formatting. The most practical one works just like C's printf:
a ="60"
b = "%05d" % int(a)
Comments
Reading your favorite Python documentation appreciated:
http://docs.python.org/library/string.html#formatstrings
"""
If the width field is preceded by a zero ('0') character, this enables zero-padding. This is equivalent to an alignment type of '=' and a fill character of '0'. """
Comments
If it's already a string you might want to use the .zfill() method.
myval.fill(5)
