Format number in python with leading zeros and fixed decimal places

Question

I am trying to format a number into a string in python. The result I hope for is for 0.1423 to be converted to 000.14. I tried

num = 0.1423
print '%0.2f' %num

But this just results in the 0.14. I can't seem to get the leading zeros.

Cheers, James

Are you trying to make a method that does this for any `float x`? — T.Woody, Oct 01 '14 at 23:46
http://stackoverflow.com/questions/339007/nicest-way-to-pad-zeroes-to-string — Mike McMahon, Oct 01 '14 at 23:54

score 3 · Accepted Answer · answered Oct 01 '14 at 23:54

3

num = 0.1423
print '%06.2f' %num

The six indicates the total field width and includes the decimal point. The zero indicates include leading zeros, the 2 indicates the precision.

answered Oct 01 '14 at 23:54

b10n

score 2 · Answer 2 · answered Oct 01 '14 at 23:54

2

The field width has to be provided as well to get the required number of leading zeros:

print "%06.2f" % num

Output:

000.14

answered Oct 01 '14 at 23:54

Simon

score 2 · Answer 3 · answered Oct 01 '14 at 23:54

2

 print "{:06.2f}".format(num)

answered Oct 01 '14 at 23:54

3 Answers3