Slice assignment allows mismatched length in Python 3.12.6 without raising ValueError #136349
Closed as not planned
Description
Bug report
Bug description:
# Add a code block here, if requiredBug Description
#In Python 3.12.6, the following code does not raise an error:
l3 = [2, 3, 4, 5]
l3[::1] = [1, 3]
print(l3)
Expected:
ValueError: attempt to assign sequence of size 2 to extended slice of size 4
but showing output [1,3]
### CPython versions tested on:
3.12
### Operating systems tested on:
Windows