re.match()
re.match() is a Python function in the Regex Module category. Checks for a match only at the beginning of the string. The syntax is re.match(pattern, string, flags=0). Returns: Match object or None. A typical example: re.match(r"\\d+", "123abc") # Match (at start)
re.match(r"\\d+", "abc123") # None (not at start). A close sibling is re.search(), which scans through the string looking for a match to the regex pattern. Returns the first match or None. A close sibling is re.fullmatch(), which checks if the entire string matches the regex pattern. A close sibling is re.findall(), which returns all non-overlapping matches as a list of strings or tuples. A close sibling is re.finditer(), which returns an iterator yielding Match objects for all non-overlapping matches. More about this category: Regular expression operations — search, match, findall, sub, split. For a broader walkthrough, read the Regex Module guide. Related Regex Module entries: re.search(), re.fullmatch(), re.findall(), re.finditer(), re.sub(), re.subn().