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

0 vote179 views1 answer
Register template tag django
Python
0 vote204 views1 answer
Get the last element from the list
Python
0 vote204 views1 answer
Get id widget tkinter
Python
0 vote202 views1 answer
Python terminate program after specific time
Python
9 votes180 views6 answers
Lists in python
Python
1 vote208 views2 answers
TypeError: can’t multiply sequence by non-int of type ‘float’
Python
9 votes197 views2 answers
Merge 2 dataframes pythom
Python
0 vote209 views1 answer
Dict keys
Python
0 vote194 views1 answer
Numpy distance of consecutive elements
Python
1 vote293 views2 answers
Divide a value by all values in a list
Python