How to add a space before the first letter of continuous uppercase letters in Python?

Question

How to add a space before the first letter of continuous uppercase letters in Python?

For example, if a string is "ABCDEzyxFGwvuHts", it should be split as: " ABCDExyz FGwvu Hts"

Thanks.

Answer 1

Use the following simple solution with re.sub() function:

import re

s = "ABCDEzyxFGwvuHts"
result = re.sub(r'([A-Z]+[^A-Z]+)', r' \1', s)

print result

The output:

 ABCDEzyx FGwvu Hts