如何在从原始字符串中获取详细信息时删除未终止的字符串

Question

While writing code to search for USA phone number patterns which may or may not start with first 3 numbers like (415) or 415 (eg full number like (415)-555-1234 ) encountered the error untermianted subpattern. Code:-

#! python3

import re, pyperclip
#TODO: Create a regex for phone numbers
phoneRegex = re.compile(r'''
((\d\d\d)|(\(\d\d\d\)))?    # area code (optional) #this is for pattersn where 415 or (415) for which we puta ? at the end indicating appear 0 or 1 times
(\s|-)  # first separator either - or a space
\d\d\d # first 3 digits
-  #separator
\d\d\d\d   # last 4 digits
(((ext(\.)?\s|x)  #extension number part may be 2 till 5 characvters long
(\d{2,5}))?   # as this entire number or extension part can be optional 
''',re.VERBOSE)
#TODO: Create a regex for email addresses
#EMAIL part is working fine and tested on 10/08/22
emailRegex = re.compile(r'''
#some.+_things@(\d{2,5}))?.com
[a-zA-Z0-9_.+]+  #name part
@  #@ symbol
[a-zA-Z0-9_.+]+  #Domain name part
''',re.VERBOSE)
#TODO: Get text off the clipboard
text = pyperclip.paste()
#TODO: Extract the email/phone from this text
extractedPhone = phoneRegex.findall(text)
extractedEmail = emailRegex.findall(text)
#TODO: Copy the extracted email/phone to the clipboard
print(extractedPhone)
print(extractedEmail)

error thrown = re.error: missing ), unterminated subpattern at position 266 (line 7, column 1)

Answer 1

One of the parenthesis is not closed here:

((  (ext(\.)?\s|x)
    (\d{2,5})      )?

You can decide how to edit it depending on what you want.

Or you can just try removing it:

(  (ext(\.)?\s|x)
   (\d{2,5})      )?