# Basic syntax:
first_list.append(second_list)# Append adds the second_list as an# element to the first_list
first_list.extend(second_list)# Extend combines the elements of the # first_list and the second_list# Note, both append and extend modify the first_list in place# Example usage for append:
first_list =[1,2,3,4,5]
second_list =[6,7,8,9]
first_list.append(second_list)print(first_list)-->[1,2,3,4,5,[6,7,8,9]]# Example usage for extend:
first_list =[1,2,3,4,5]
second_list =[6,7,8,9]
first_list.extend(second_list)print(first_list)-->[1,2,3,4,5,6,7,8,9]
a =[1,2,3]
b =[4,5]# method 1:
c = a + b # forms a new list with all elementsprint(c)# [1, 2, 3, 4, 5]# method 2:
a.extend(b)# adds the elements of b into list aprint(a)# [1, 2, 3, 4, 5]
list1 =["Hello ","take "]
list2 =["Dear","Sir"]
resList =[x+y for x in list1 for y in list2]print(resList)#['Hello Dear', 'Hello Sir', 'take Dear', 'take Sir']
#define lists
my_list =["a","b"]
other_list =[1,2]#extend my_list by adding all the values from other_list into my list
my_list.extend(other_list)# output: ['a', 'b', 1, 2]
"""
Joining any number of iterables by combining elements in order
- Iterables include: str, list, tuples, dict etc...
- No error will be incurred if you zip lists of differing lengths,...
...it will simply zip up to the length of the shortest list
"""
lst1 =[1,2,3,4,5,7]
lst2 ="mangos"
lst3 =(3.1,5.4,0.2,23.2,8.88,898)
lst4 ={"Car":"Mercedes Benz","Location":"Eiffel Tower","Organism":"Tardigrade"}# lst5, lst6, ...
result =list(zip(lst1, lst2, lst3, lst4.keys()))# Check out dictionary methodsprint(result)## [(1, 'm', 3.1, 'Car'), (2, 'a', 5.4, 'Location'), (3, 'n', 0.2, 'Organism')]