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issue with regular expressions


the following code ends in an exception:

import re
pattern = 'Sottoscrizione unica soluzione'
mylines = []                                # Declare an empty list.
with open ('tmp.txt', 'rt') as myfile:      # Open tmp.txt for reading text.
    for myline in myfile:                   # For each line in the file,
        mylines.append(myline.rstrip('\n')) # strip newline and add to list.
for element in mylines:                     # For each element in the list,
#    print(element)
   match = re.search(pattern, element)
   s = match.start()
   e = match.end()
   print(element[s:e])


F:\October20-2019-RECOVERY\Unicredit_recovery\tmp_re_search>c:\Users\joepareti\Miniconda3\pkgs\python-3.7.1-h8c8aaf0_6\python.exe
search_0.py
Traceback (most recent call last):
  File "search_0.py", line 10, in <module>
    s = match.start()
AttributeError: 'NoneType' object has no attribute 'start'

any help? Thanks
-- 
Regards,
Joseph Pareti - Artificial Intelligence consultant
Joseph Pareti's AI Consulting Services
https://www.joepareti54-ai.com/
cell +49 1520 1600 209
cell +39 339 797 0644