Simple class, that simplify usage of slices in __getitem__
Project description
slice-match
Simple class, that simplify usage of slices in __getitem__
.
Available on PyPi: https://pypi.org/project/slice-match/
Installation
Install with pip:
pip install -U slice-match
Requirements
Python 3.10 and newer
Description
It's just a little trick, that allows you to do:
class custom_indexed:
def __getitem__(self, index):
match index:
case int(s):
print('this is "me[0]"-like expression')
case Slice(int(s)):
# note, this also matches "me[0:<Any>:<Any>]"-like
print('this is "me[0:]"-like expression')
case Slice(int(start), int(stop)):
# note, this also matches "me[0:5:<Any>]"-like
print('this is "me[0:5]"-like expression')
case Slice(int(start), int(stop), int(stride)):
print('this is "me[0:5:2]"-like expression')
case Slice(start, None, stride):
print('this is "me[<Any>::<Any>]"-like expression')
case Slice(start=12):
print('this is "me[12:<Any>:<Any>]"-like expression')
Performance drop
Using Slice
cause ~2x performance drop, compared with using slice
.
Simple benchmark notebook can be found here: https://github.com/SaelKimberly/slice-match/blob/main/slice-match.ipynb
So, readability improved (over 9000% ;) ), but performance slightly drops.
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