GUID regex Python

GUID is an acronym for Globally Unique Identifier and used for resource identification. The term is generally used instead of UUID when working with Microsoft technologies.

GUID regex

Below is a simple regular expression to match a guide in a given string:

"^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$"

Test it!

/^(?:\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\}{0,1})$/

True

False

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Example code in Python:

import re

# Validate GUID
words_pattern = "^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$"
re.match(words_pattern, '51d52cf1-83c9-4f02-b117-703ecb728b74') # Returns Match object
re.match(words_pattern, '{51d52cf1-83c9-4f02-b117-703ecb728b74}') # Returns Match object
re.match(words_pattern, '{51d52cf1-83c9-4f02-b117-703ecb728-b74}') # Returns None

# Extract GUID from a string
words_extract_pattern = "(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})"
re.findall(words_extract_pattern, 'Resource {51d52cf1-83c9-4f02-b117-703ecb728b74} is down') # returns ['{51d52cf1-83c9-4f02-b117-703ecb728b74}']

Test it!

True

False

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Test it!

True

False

Enter a text in the input above to see the result

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