Append integer to beginning of list in Python


I have an integer and a list. I would like to make a new list of them beginning with the variable and ending with the list. Writing a + list I get errors. The compiler handles as integer, thus I cannot use append, or extend either. How would you do this?



To insert a variable at a given position in a list, you can use array.insert function. The syntax for it is array.insert(index, value). The index is the position where you want to insert the value. Here is an example of it.

x = 0

list = [1, 2, 3, 4, 5]



[0, 1, 2, 3, 4, 5]



Since your variable ‘a’ is an integer, you can't add them both directly. One simple way to do it is through this code.

a = 5

list = [1,2,3,4]

print([a] + list)


You will get this output.

[5, 1, 2, 3, 4]



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