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Regular expressions (regex) are patterns used to match character combinations in strings. They provide a concise way to search, extract, and manipulate text based on specific rules. Using the re Module Python's re module provides regex functionality: import re # Match a pattern at string start match_result = re.match(r'pattern', 'input_string' ...

Regular Expression Patterns Regex patterns use special syntax to define matching rules. The following table lists common special syntax elements, note that some meanings may change when using optional flags. Pattern Description ^ Matches the start of a string $ Matches the end of a string . Matches any single character except newline ...