regex - How to parse for tags with '+' in python -

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When I try to compile it, I get the "Nothing to Repeat" error: 

  search = re.compile (r '([^ a-zA-Z0- 9]) (% s) ([^ a-zA-Z0- 9])'% '+ test', re I)

The problem is '+' How do I manage it? 

  re.compile (r '([^ a-zA -Z0- 9]) (% S) ([^ a-zA-Z0-9]) '%' \ test ', re.I)

"+" In the regular expression the quantifier "is less than Repeat at least once "It has to be followed by something repetitive, or if you want to match it with a literal" + "then it must be saved.

Better, if you want to make your regex dynamically 

  re.compile (r '([^ a-zA-Z0- 9]) (% s) ([^ a-zA-Z0- 9])'% re.escape ( '+ Test'), re.i)

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