/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

0 vote119 views1 answer
Change image in tkinter canvas
Python
0 vote185 views1 answer
Test if instance in queryset django
Python Django
5 votes129 views1 answer
Tkinter entry default value
Python
5 votes135 views6 answers
Python dictionary comprehension
Python
3 votes124 views2 answers
Auticlicker python
Python
0 vote77 views1 answer
Zip used in python stack overflow
Python
2 votes123 views1 answer
Python use tqdm with concurrent futures
Python
0 vote117 views1 answer
Find the Runner Up Score solution in python3
Python
9 votes129 views1 answer
How to send get request python
Python
4 votes131 views2 answers
Use datetime python to get runtime
Python

Share