python where in list code example

Example 1: python find in list

# There is several possible ways if "finding" things in lists.
'Checking if something is inside'
3 in [1, 2, 3] # => True
'Filtering a collection'
matches = [x for x in lst if fulfills_some_condition(x)]
matches = filter(fulfills_some_condition, lst)
matches = (x for x in lst if x > 6)
'Finding the first occurrence'
next(x for x in lst if ...)
next((x for x in lst if ...), [default value])
'Finding the location of an item'
[1,2,3].index(2) # => 1
[1,2,3,2].index(2) # => 1
[1,2,3].index(4) # => ValueError
[i for i,x in enumerate([1,2,3,2]) if x==2] # => [1, 3]

Example 2: python list

# example of list in python

myList = [9, 'hello', 2, 'python']

print(myList[0]) # output --> 9
print(myList[-3]) # output --> hello
print(myList[:3]) # output --> [9, 'hello', 2]
print(myList) # output --> [9, 'hello', 2, 'python']

Example 3: python lists

games = ['Fortnite', 'CS:GO', 'Temple Run']
print(games)

Example 4: lists in python

[0,'',True,5.2,False,[1,2]]