Python find item in list

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

Source: stackoverflow.com

Similar codes

0 vote269 views1 answer
Convert string to integer in dictionary python
Python
0 vote276 views1 answer
How to redirect where requests library downloads file python
Python
11 votes247 views6 answers
Linear regression python code
Python
0 vote268 views1 answer
Auto instagram login
Python
0 vote303 views1 answer
Condtion for equal time in selenium python
Python
3 votes253 views2 answers
Python get utc time
Python
62 votes280 views6 answers
Python loop with index
Python
2 votes280 views3 answers
Conda install ffmpeg
Python
2 votes278 views4 answers
How to create dictionary in python from csv
Python
1 vote265 views1 answer
Pandas find location of values greater than
Python