feat(python): 30x speedup initialising Series
from python range
object
#5397
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Took a quick look at #5395 (on my lunch break, hah :) and spotted an optimisation opportunity; can automatically substitute python
range
for polars'arange
expression.Before:
31.87s
After:
1.045s
FYI: looks like pandas was already doing a similar optimisation; we were much slower, and now we're ~40% faster (pandas timing for Series init with the same range object:
1.47s
).Can look at the actual issue itself later this evening.