change list to int in python

test_list = list(map(int,test_list))

test_list = list(map(int, test_list)) 

# Python3 code to demonstrate  
# converting list of strings to int 
# using naive method  
  
# initializing list  
test_list = ['1', '4', '3', '6', '7'] 
  
# Printing original list 
print ("Original list is : " + str(test_list)) 
  
# using naive method to 
# perform conversion 
for i in range(0, len(test_list)): 
    test_list[i] = int(test_list[i]) 
      
  
# Printing modified list  
print ("Modified list is : " + str(test_list)) 

a = [1, 2, 3]   
map(str, a)  
['1', '2', '3']