Python (re)

MAC Address in PY

Match 48-bit MAC addresses written with colon or hyphen separators (e.g. 00:1A:2B:3C:4D:5E).

Try it in the PY tester →

Pattern

regexPY
(?:[0-9A-Fa-f]{2}[:\-]){5}[0-9A-Fa-f]{2}   (flags: g)

Python (re) code

pyPython
import re

pattern = re.compile(r"(?:[0-9A-Fa-f]{2}[:\-]){5}[0-9A-Fa-f]{2}")
input_text = "00:1A:2B:3C:4D:5E"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

How the pattern works

Five pairs of hex digits each followed by : or -, then a final hex pair. Case-insensitive by character class to handle both upper and lower hex digits.

Examples

Input

00:1A:2B:3C:4D:5E

Matches

  • 00:1A:2B:3C:4D:5E

Input

AA-BB-CC-DD-EE-FF

Matches

  • AA-BB-CC-DD-EE-FF

Input

not a mac

No match

—

Same pattern, other engines

JavaScript / ECMAScript

Supported

See how this pattern looks (and behaves) in JavaScript's built-in RegExp.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to MAC Address overview (all engines)