On 7/09/25 00:47, Rob Cliffe via Python-list wrote:
I quite often find myself writing expressions of the form
someString[x : x+n]
where n is often an int and x may be an int, a variable, or a (possibly
complicated) expression.
0 A PEP
1 A helper-function
eg slice_by_length( input_string, start, length, )
2 Slice as an Object
run_length_slice = slice( start_index, start_index + slice_length, )
...
substring = source_string[ run_length_slice ]
3 Custom Class
with behavior similar to (1)
4 Pydantic
similar to above
Which might be best will vary by circumstance - YMMV!
--
Regards,
=dn
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