/Python/Python list add first

Python list add first

How to add element at first position in array python

array.insert(index, value)

x = [1,3,4]
a = 2
x.insert(1,a)

print(x)

#Will print: [1,2,3,4]

3

Python append to first index

In [1]: ls = [1,2,3]

In [2]: ls.insert(0, "new")

In [3]: ls
Out[3]: ['new', 1, 2, 3]

2

Source: stackoverflow.com

Python list add first

# list.insert(before, value)
list = ["a", "b"]
list.insert(0, "c")
print(list)     # ['c', 'a', 'b']

1

Similar codes

25 votes106 views2 answers
Copy text to clipboard python
Python
-1 vote144 views1 answer
Convert this bash command into Python echo have a nice day Quizlet
Python
28 votes93 views6 answers
Pandas create empty dataframe
Python
0 vote119 views1 answer
How to run django server outside world
Python
6 votes99 views1 answer
Utf8 python encodage line
Python
0 vote101 views1 answer
How to use django-rest-framework-datatables
Python
22 votes97 views5 answers
Define a string in python
Python
16 votes1K views4 answers
Tqdm library
Python
1 vote107 views1 answer
Why men are better than woman
Python
5 votes103 views1 answer
Find all files in a directory with extension python
Python

Share