Very basic python script to update form_state from Drupal 7 to Drupal 9.

form_state_update.py

#!/usr/bin/env python3

import re

filename = 'fsp_competitive_cross_reference.cut_n_paste.inc'

# Read in the file
with open(filename, 'r') as file:
    filedata = file.read()

# print(filedata)
values = re.findall("\$form_state\['values'\].*\]", filedata)
temp = re.sub(r"(\$form_state\['values'\]\[)('.*')(\])", r'$form_state->getValue(\2)', filedata)
print(temp)

damn thing pulled my astericks.... I should have probably used somthing that indicated this was code....
regex is a bit greedy - so on line 12 your closing .*\] would consume all characters until the LAST ] and not the first ] (if there was more than one....) that is why I used, (in the vim description) '[^']*'