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.
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.
Hands-on itertools.islice vs list slice window lab: real ops/s taking ranges from sequences, measured on Linux localhost in this hands-on lab for SREs.
Hands-on heapq.merge vs sorted(chain) multi-way merge: real records/s on pre-sorted lists, measured on Linux localhost today in this hands-on lab for SREs.
Hands-on mmap MAP_SHARED write+msync vs pwrite region update: real MB/s with durability labels, measured on Linux localhost in this hands-on lab for SREs.
Hands-on os.stat vs pathlib.Path.stat vs os.lstat: real metadata stats/s on many regular files, measured on Linux localhost in this hands-on lab for SREs.
A hands-on localhost lab comparing html.escape with chained str.replace for safe HTML escaping.
A hands-on localhost lab comparing configparser and json.load for nested application configuration.
Hands-on difflib.SequenceMatcher vs set Jaccard token similarity: real ops/s on token lists, measured on Linux localhost in this hands-on lab for SREs.
Hands-on zlib.compress vs gzip.compress same-level (6) stdlib bake-off: real MB/s and sizes, measured on Linux localhost in this hands-on lab for SREs.
Hands-on operator.methodcaller vs getattr vs direct: real calls/s invoking methods on many objects, measured on Linux localhost today in this lab for SREs.
Hands-on itertools.groupby vs manual dict-of-lists: real records/s grouping pre-sorted key runs, measured on Linux localhost today in this lab for SREs.