Index in python

Python find index by value

>>> ["foo", "bar", "baz"].index("bar")
1

Find an index of an item in a list python

#Example List
list = ['apples', 'bannas', 'grapes']
#Use Known Entites In The List To Find The Index Of An Unknown Object
Index_Number_For_Bannas = list.index('apples')
#Print The Object
print(list[Index_Number_For_Bannas])

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'))

How to find index of list of list in python

[(i, colour.index(c))
 for i, colour in enumerate(colours)
 if c in colour]

Python indexing

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

Source: docs.python.org

Similar codes

3 votes129 views1 answer
Split string into array every n characters python
Python
0 vote159 views1 answer
Bash: line 1: templates/addtask.html: No such file or directory in flask app
Python Flask
3 votes130 views2 answers
Tables in python
Python
0 vote146 views1 answer
Django create username and password from csv
Python
0 vote165 views1 answer
Django serializer,
Python Django
2 votes125 views2 answers
Python printing date
Python
0 vote186 views1 answer
Django.db.backends.mysql install
Python Django
0 vote119 views1 answer
Check if number is divisible without remainder python
Python
0 vote119 views1 answer
Calling function whose name is in a variable
Python
6 votes126 views2 answers
Iterable meaning
Python