Blog

random.choices vs sample vs choice: Localhost Lab

1 Oct 20264 min read

statistics.quantiles vs Manual Percentile: Localhost Lab

1 Oct 20264 min read

lru_cache vs functools.cache: Is There Any Difference?

1 Oct 20264 min read

graphlib Topo vs Manual Kahn: Localhost Lab

1 Oct 20264 min read

zoneinfo vs Fixed UTC Offset: Localhost Lab

Hands-on zoneinfo.ZoneInfo vs fixed UTC offset conversions: real conv/s on many datetimes, measured on Linux localhost today in this hands-on lab for SREs.

1 Oct 20264 min read

Python dataclass replace vs Manual Copy: Which Is Faster?

Hands-on dataclasses.replace vs manual copy/new-instance lab: real ops/s updating one field, measured on Linux localhost in this hands-on lab for SREs.

1 Oct 20265 min read

argparse vs sys.argv: Localhost Lab

Hands-on argparse vs manual sys.argv parse lab: real parses/s for small CLI flag sets on fixed argv, measured on Linux localhost in this lab for SREs.

1 Oct 20264 min read

hmac.compare_digest vs ==: Localhost Lab

Hands-on hmac.compare_digest vs bytes == verify lab: real ops/s plus HMAC-SHA256 construct costs, measured on Linux localhost in this eng lab for SREs.

1 Oct 20264 min read

subprocess.run vs Popen: Localhost Lab

A measured Linux localhost lab comparing subprocess.run with Popen and communicate for tiny process spawns and captured stdout.

1 Oct 20264 min read

shelve vs pickle Dict Store: Localhost Lab

A measured Linux localhost lab comparing shelve's keyed dbm store with a single pickle blob for full snapshots and random access.

1 Oct 20264 min read

BytesIO vs SpooledTemporaryFile: Localhost Lab

BytesIO vs SpooledTemporaryFile growth throughput across the spool threshold, compared with NamedTemporaryFile on Linux localhost.

1 Oct 20264 min read

WeakValueDictionary vs dict Cache: Localhost Lab

WeakValueDictionary vs strong dict cache: insert and lookup throughput, plus GC-driven drop on Linux localhost.

1 Oct 20264 min read