How to replace dash between characters with space using regex

Question

I want to replace dashes which appear between letters with a space using regex. For example to replace ab-cd with ab cd

The following matc

Answer 1

You need to use look-arounds:

 new_term = re.sub(r"(?<=[A-Za-z])-(?=[A-Za-z])", " ", original_term)

Or capturing groups:

 new_term = re.sub(r"([A-Za-z])-(?=[A-Za-z])", r"\1 ", original_term)

See IDEONE demo

Note that [A-z] also matches some non-letters (namely [, \, ], ^, _, and `), thus, I suggest replacing it with [A-Z] and use a case-insensitive modifier (?i).

Note that you do not have to escape a hyphen outside a character class.