How we made Python's packaging library 3x faster

2 comments

• djoldman 48 minutes ago
  > _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.

  [-]
  • teaearlgraycold 21 minutes ago
    I would expect however that a regex replacement would be much faster than your N^2 while loop.
• zahlman 3 days ago
  Previously: https://news.ycombinator.com/item?id=46557542