trocar itens de lista em python
lst = ["a","b","c","d","e","f","g","h","i","j"]
n = len(lst)
for i in range(0,n-1,2):
lst[i],lst[i+1] = lst[i+1],lst[i]
print(lst)
print(n)
elemento da lista troca de python
m=eval(input("enter number"))
for i in range(0,len(m),2):
m[i],m[i+1]= m[i+1],m[i]
print("swapped list",m)
#output
enter number[1,2]
swapped list [2, 1]