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+--- Thread: How to change 0 based indexing to 1 based indexing in python..?? (/thread-23907.html)
How to change 0 based indexing to 1 based indexing in python..?? - Ruthra - Jan-22-2020
Python works in 0 based index. I have tried to change the python to work in 1 based index.
python_file_A.py
def __getitem__(self, index): return self.list[index-1] def __setitem__(self, index, value): self.list[index-1] = valuepython_file_B.py
example_list=['a','b','c','d','e']
print("Before function change : ",example_list[1])
from python_file_A import *
print("After function change : ",example_list[1])While running python_file_B.py,Actual Output :
Before function change : b
After function change : b
Expected Output :
Before function change : b
After function change : a
After function change the example_list[1] should give 'a' as output which is example_list[0]
Without using class be preferred. Kindly help to resolve this.
reference links below,
https://stackoverflow.com/questions/11726866/make-array-index-1-instead-of-index-0-based
http://defcraft.blogspot.com/2007/04/n-based-python-list.html
RE: How to change 0 based indexing to 1 based indexing in python..?? - jefsummers - Jan-22-2020
For a function not in a class, remove the reference to self.
General recommendation - wouldn't it be better to just remember that it is zero based? Using getters and setters is definitely un-pythonic, adds a layer for errors to creep in.
RE: How to change 0 based indexing to 1 based indexing in python..?? - Ruthra - Jan-22-2020
(Jan-22-2020, 05:07 PM)jefsummers Wrote: For a function not in a class, remove the reference to self.
General recommendation - wouldn't it be better to just remember that it is zero based? Using getters and setters is definitely un-pythonic, adds a layer for errors to creep in.
python_file_A.py
def __getitem__(index): return list[index-1] def __setitem__(index, value): list[index-1] = valuepython_file_B.py
example_list=['a','b','c','d','e']
print("Before function change : ",example_list[1])
from python_file_A import *
print("After function change : ",example_list[1])While running python_file_B.py,Actual Output :
Before function change : b
After function change : b
Expected Output :
Before function change : b
After function change : a
Removed the self (Actually self is not a real issue what i am seeking for). Even though the expected output is not coming. You can recommend other ways of doing it.