Regex recompiled per request
Review this Python validator called once per inbound request to check an email-like field.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.
0:00 of about 16 min
Mark a line and say what kind of problem it is.0 findings
1import re
2
3def is_valid_handle(value: str) -> bool:
4 pattern = re.compile(r"^[a-z0-9]([a-z0-9._-]{0,28}[a-z0-9])?$")
5 return pattern.match(value) is not None
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.