from operator import contains # Convert a telephone number into corresponding name, if on list. # (If not on list, just return the number itself.) def telToName(tel, telList, nameList): # your code here index = 0 try: for t in telList: if t == tel: break index += 1 name = nameList[index] except: name = tel return name # Return list of telephone numbers corresponding to names containing partName. def nameToTels(partName, telList, nameList): # your code here tels = [] index = 0 for name in nameList: if contains(name, partName): tels.append(telList[index]) index += 1 return tels def main(): # Lists of telephone numbers and names telList = ['975318642', '234000111', '777888333', '911911911'] nameList = ['Angelina', 'Brad', 'Claudia', 'Bruna'] # Test telToName: tel = input("Tel number? ") print( telToName(tel, telList, nameList) ) print( telToName('234000111', telList, nameList) == "Brad" ) print( telToName('222333444', telList, nameList) == "222333444" ) # Test nameToTels: name = input("Name? ") print( nameToTels(name, telList, nameList) ) print( nameToTels('Clau', telList, nameList) == ['777888333'] ) print( nameToTels('Br', telList, nameList) == ['234000111', '911911911'] ) if __name__ == "__main__": main()