Python Regex ignore specific string to find next example

Question

I have the following code that runs through and strips the data in the current column and creates a secondary column with just the code in parentheses and this works wonderfully

Answer 1

You may use

df['Folder Path'].str.extract(r'\((?!\d{4}-\d{2}\)|Data Only\))([^()]*)\)',expand=True)

The regex matches

• \( - an open parenthesis

• (?!\d{4}-\d{2}\)|Data Only\)) - a negative lookahead that fails the match if there is

  • \d{4}-\d{2}\) - 4 digits, hyphen, 2 hyphens, )
  • | - or
  • Data Only\) - Data Only) substrinbg

• ([^()]*) - Group 1: any 0 or more chars other than open/close parentheses

• \) - a close parenthesis

See the regex demo.