in python how do I convert a single digit number into a double digits string?

python string numbers digits
Joe Schmoe picture Joe Schmoe · Aug 17, 2010 · Viewed 127.9k times · Source

So say i have

a = 5

i want to print it as a string '05'

Answer

jkerian picture jkerian · Aug 17, 2010

print "%02d"%a is the python 2 variant

python 3 uses a somewhat more verbose formatting system:

"{0:0=2d}".format(a)

The relevant doc link for python2 is: http://docs.python.org/2/library/string.html#format-specification-mini-language

For python3, it's http://docs.python.org/3/library/string.html#string-formatting

Related questions

How to extract numbers from a string in Python?

I would extract all the numbers contained in a string. Which is the better suited for the purpose, regular expressions or the isdigit() method? Example: line = "hello 12 hi 89" Result: [12, 89]

Read More
How to format a floating number to fixed width in Python

How do I format a floating number to a fixed width with the following requirements: Leading zero if n < 1 Add trailing decimal zero(s) to fill up fixed width Truncate decimal digits past fixed width Align all decimal points …

Read More
How do you check in python whether a string contains only numbers?

How do you check whether a string contains only numbers? I've given it a go here. I'd like to see the simplest way to accomplish this. import string def main(): isbn = input("Enter your 10 digit ISBN number: ") if len(isbn) == 10 …

Read More