findall3

findall3 is a Python function designed to locate all occurrences of a specific pattern within a string. It is part of the `re` module, Python's built-in library for regular expression operations. Unlike `re.search()`, which finds only the first match, `findall3` returns a list of all non-overlapping matches in the string. The function takes two primary arguments: the pattern to search for and the string to search within. The pattern can be a simple string or a more complex regular expression.

When `findall3` encounters a match, it appends the matched substring to a list. If the pattern contains capturing groups, the function's behavior changes. If there is one capturing group, `findall3` returns a list of strings, where each string is the content of that group for each match. If there are multiple capturing groups, it returns a list of tuples, with each tuple containing the captured content for all groups in a single match. If no matches are found, an empty list is returned. This makes `findall3` a versatile tool for extracting multiple pieces of information from text based on defined patterns.