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

-2 votes209 views6 answers
Online python pytorch free compiler
Python
12 votes164 views3 answers
Write a Python function to check whether a number is in a given range.
Python
1 vote177 views3 answers
Uninstall python ubuntu 18.04
Python
0 vote167 views1 answer
Multipart/form data multipart encoder python
Python
1 vote194 views1 answer
Django get model class from queryset
Python Django
0 vote169 views1 answer
Pytorch use multiple gpu
Python
0 vote189 views2 answers
How to use speech recognition in python
Python
1 vote148 views1 answer
Read bytes from file python
Python
0 vote206 views1 answer
Sonido sfr200a
Python
0 vote167 views1 answer
How to find projectile angle from distance python
Python