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 vote209 views1 answer
Full body tracking module
Python
0 vote230 views2 answers
SQLAlchemy Users to JSON code snippet
Python
0 vote241 views1 answer
Python r2 score
Python
0 vote238 views1 answer
Django router multiple pk
Python Django
0 vote202 views1 answer
Last 2 numbers of integer in python
Python
0 vote226 views1 answer
Applies the f function to all Row of this DataFrame
Python
0 vote211 views1 answer
Drop row with duplicate value
Python
0 vote207 views1 answer
How to play audio in background
Python
0 vote213 views1 answer
Install easygui
Python
21 votes216 views3 answers
How to copy all requirements to requirements.txt
Python