Tech School Solutions

The most common functions in the Python re (regular expression) module include:

1. re.match(pattern, string) – Determines if the regular expression pattern matches at the beginning of the string string.
2. re.search(pattern, string) – Searches the string string for a match to the regular expression pattern.
3. re.findall(pattern, string) – Returns a list of all non-overlapping matches of pattern in string, as a list of strings.
4. re.finditer(pattern, string) – Returns an iterator yielding match objects for all non-overlapping matches of pattern in string.
5. re.split(pattern, string) – Splits string by the occurrences of pattern.
6. re.sub(pattern, repl, string) – Replaces all occurrences of pattern in string with the string repl.
7. re.compile(pattern) – Compiles a regular expression pattern into a regular expression object, which can be used for matching using its methods.

Each of these functions can be used in a variety of ways to perform different tasks, such as matching and extraction, substitution, and splitting of strings based on regular expression patterns.

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