This loop handles cases like `eggtools._spam` → `eggtools-spam`, which is probably rare (I guess it’s for packages that export namespaced modules, and you probably don’t want to export _private modules; sorry in advance for non-pythonic terminology). Having more than two separator characters in a row is even more unusual.
> _canonicalize_table = str.maketrans( "ABCDEFGHIJKLMNOPQRSTUVWXYZ_.", "abcdefghijklmnopqrstuvwxyz--", )
> ...
> value = name.translate(_canonicalize_table)
> while "--" in value:
> value = value.replace("--", "-")
translate can be wildly fast compared to some commonly used regexes or replacements.
I am curious, why not .lower().translate('_.', '--')
.lower() has to handle Unicode, right? I imagine the giant tables slow it down a bit.
I would expect however that a regex replacement would be much faster than your N^2 while loop.
It would be, if it was a common situation.
This loop handles cases like `eggtools._spam` → `eggtools-spam`, which is probably rare (I guess it’s for packages that export namespaced modules, and you probably don’t want to export _private modules; sorry in advance for non-pythonic terminology). Having more than two separator characters in a row is even more unusual.
Previously: https://news.ycombinator.com/item?id=46557542
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