Answer to Question #283052 in Python for Evans Mulenga

Question

Describe how tuples can be useful with loops over lists and dictionaries, and give Python code examples. Create your own code examples. Do not copy them from the textbook or any other source.

Your descriptions and examples should include the following: the zip function, the enumerate function, and the items method.

Answer 1

dic = {'model':'BMW','color':'black','produced country':'Germany'} #example of dictinary
l = list(dic.items())  #list of key,value pairs, which are tuples
print('dic.items() = ',l) #returns collection of tuples(useful)
print('Type of dic.items() is',type(l))
for k,v in dic.items():  #loop over the dictionary using key,value tuples
    print('The car', k, 'is',v)
    


#Tuples are useful loops with zip() function
l1 = [1,2,3] 
l2 = [4,5,6] 
zip_ = list(zip(l1, l2))  #list of tuples with the A and B lists elements


print('Type of zipped elements is ',type(zip_))
for a,b in zip_: 
    print(a,b)