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  1. Prepare
  2. Python
  3. Regex and Parsing
  4. Validating Postal Codes
  5. Discussions

Validating Postal Codes

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  • lucasopoka
     + 0 comments
    regex_integer_in_range = r'^[1-9][0-9]{5}$'
regex_alternating_repetitive_digit_pair = r'(\d)(?=.\1{1})'

import re
P = input()

print (bool(re.match(regex_integer_in_range, P)) 
and len(re.findall(regex_alternating_repetitive_digit_pair, P)) < 2)

  • alessandromarco1
     + 0 comments
    regex_integer_in_range = r"^[1-9][0-9]{5}$"	
regex_alternating_repetitive_digit_pair = r"(?=([\d])([\d])(\1))"

  • alessandromarco1
     + 0 comments
    regex_integer_in_range = r"^[1-9][0-9]{5}$"	
regex_alternating_repetitive_digit_pair = r"(?=([\d])([\d])(\1))"

  • v_alishauskaite
     + 1 comment

    This statement doesn't look right to me:

    len(re.findall(regex_alternating_repetitive_digit_pair, P)) < 2)

    It should be replaced with:

    len(re.findall(regex_alternating_repetitive_digit_pair, P)) == 0)

    Try running you code against this one: 454286. (Corrected)

  • Jabboscurio
     + 1 comment
    regex_integer_in_range = r"^[1-9]{1}[0-9]{5}$"
regex_alternating_repetitive_digit_pair = r"(\d)(?=\d\1)"


import re
P = input()

print (bool(re.match(regex_integer_in_range, P)) 
and len(re.findall(regex_alternating_repetitive_digit_pair, P)) < 2)
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