[issue42799] Please document fnmatch LRU cache size (256) and suggest alternatives

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

In addition to documenting the cache size, consider a substantial increase to the limit.   Compiled regex patterns tend to be very small.  We can afford to have a lot of them (tens of thousands seems reasonable to me).

Regarding the suggested alternative, ISTM that calling translate() directly doesn't help much.  For a cache miss, the overhead of the lru_cache() is very small relative to the work done by translate().

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nosy: +rhettinger

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