Python indexing

Index in python

#index with eval()
k=eval(input("enter the list"))
for i in range(len(k)):
    print(k[i],"-->forward index",i,"backward index",-(len(k)-i))
#output
enter the list[1,9,5,7]
1 --> forward index 0 backward index -4
9 --> forward index 1 backward index -3
5 --> forward index 2 backward index -2
7 --> forward index 3 backward index -1

What is the index in python

1) how to find index of a word in a string:
  my_string = "Hello World!"

  my_string.index("l")

2) how to find the first occurance of a word in a string:
  print(verse.index('and'))
  
  
 3)how to find the last occurance of a word in a string:
  print(verse.rindex('you'))

Python indexing

>>> word = 'Python'
>>> word[0]  # character in position 0
'P'
>>> word[5]  # character in position 5
'n'

Source: docs.python.org

Similar codes

0 vote311 views1 answer
Find the closest smaller value in an array python
Python
1 vote290 views1 answer
Pygame disable message
Python
1 vote256 views2 answers
How to 404 custom page not found in django
Python Django
2 votes264 views3 answers
Rotate matrix 90 degrees clockwise python
Python
0 vote256 views1 answer
Count upercase
Python
1 vote247 views1 answer
How to clear a pickle file
Python
2 votes256 views2 answers
Remove all rows where one ccolumns egale to nan
Python
115 votes262 views6 answers
Write json to file python
Python
11 votes267 views6 answers
How to add to a list python
Python
0 vote252 views2 answers
Avoid bad request django
Python