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Iterable Data Type: List
Iterable Data Type
List
Tuple
String
List: Program 1
'''list of numbers''' A = [1,4,5,2,3,2.2,4.3,6,9.1] print('List A=',A) '''list of names''' B = ['Physics', 'Chemistry', 'Mathematics', 'Zoology', 'Computer Sc.'] print('List B=',B) '''Mixed List''' C = ['python', 4, 5, [5, 'abc'], '@#$'] print('List C=',C)
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Output 1
List: Program 2
'''Create list by list function''' x = 'Python4Physics.in' y = list(x) print(y)
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Output 2
List: Program 3
'''list from range of numbers''' A = list(range(1,20,3)) print(A)
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Output 3
List: Program 4
'''Indexing''' A = [2, 3.4, 5, 6, 4, 3, 'abc', 2, 'def', 8.5, 9.3, 3] print(A[0]) #1st element print(A[1]) #2nd element print(A[2]) #3rd element print(A[-1])#last element print(A[-2]) #element before last
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Output 4
List: Program 5
'''Slicing''' A = [2, 6, 9, 5, 4, 1, 9, 1, 5, 8] print('slice index 2 to 6 in step 1', A[2:7]) #step = 1 default print('slice index 2 to 8 in step 2', A[2:9:2]) print('slice index 2 to the end', A[2:]) print('slice index 0 to 5', A[:6])
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Output 5
List: Program 6
'''Built in Function in List''' A = [9, 6, 5, 5, 8, 8, 8, 8, 4, 9, 6] L = len(A) #total no of items print('total no of items',L) sum = sum(A) # sum of all items print('Sum of all nos in the list',sum) mx = max(A) print('Maxmum value', mx) mn = min(A) print('Minimum value', mn) sort= sorted(A) print('sort in ascending order', sort) rev_sort = sorted(A, reverse=True) print('sort in descending order', rev_sort) B = ['python', 'latex', 'gnuplot', 'arduino'] sort = sorted(B) print('Sort ascending alphabetically', sort)
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Output 6
List: Program 7
'''concatenate two list''' A = [9, 6, 5, 5, 8, 8, 8, 8, 4, 9, 6] B = ['python', 'latex', 'gnuplot', 'arduino'] C = A + B print('concatenate list = ',C) print('\n') '''Location of an element''' A = [1,2,3,4,5,6,7,8,9] print('location of 5=', A.index(5)) print('\n') '''find location of minimum value in list''' A = [1,2,3,4,5,6,7,8,9] print('location of min value =', A.index(min(A))) print('\n') '''Reverse the list''' A = [1,2,3,4,5,6,7,8,9] A.reverse() print('Reversed list = ', A)
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Output 7
List: Program 8
'''Append element''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] A.append(5) # Put 5 at the end print('updated list = ',A) print('\n') '''Remove element from end''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] A.pop() print('updated list = ',A) print('\n') '''Remove element from particular position''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] A.pop(5) print('updated list = ',A) print('\n') '''Remove particular element ''' A = [1, 8, 4, 3, 12, 4, 9, 19, 29, 6] A.remove(19) print('updated list = ',A)
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Output 8
List: Program 9
'''Insert element to particular position''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] A.insert(5, 13) print('updated list = ',A) print('\n') '''Replace an item at particular position''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] A[4] = 13 print('updated list = ',A) print('\n') '''Count occurance of particular element''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] C = A.count(9) print('Total No. of 9 in the list = ',C) '''Delete a segment''' A = [1, 8, 4, 3, 8, 4, 9, 9, 9, 6] del A[2:5] print('updated list = ',A)
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Output 9
List: Program 10
'''List comprehension''' '''Square of List''' A = [9, 6, 5, 5, 8, 8, 8, 8, 4, 9, 6] B = [i**2 for i in A] print(B) print('\n') '''find even numbers''' A = [9, 6, 5, 5, 8, 8, 8, 8, 4, 9, 6] B = [i for i in A if i%2 == 0] print(B) print('\n') '''uppercase conversion''' fruits = ["apple", "banana", "cherry"] uppercase_fruits = [fruit.upper() for fruit in fruits] print(uppercase_fruits) print('\n') '''length of words''' words = ["hello", "world", "python"] lengths = [len(word) for word in words] print(lengths)
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Output 10
List: Program 11
'''Creating a nested list''' matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] '''Accessing elements in a nested list''' print("Element at row 1, column 2:", matrix[0][1]) print("Element at row 2, column 3:", matrix[1][2]) '''Looping through a nested list''' for row in matrix: for element in row: print(element, end=" ") print() '''Summing all elements in the nested list''' total_sum = 0 for row in matrix: total_sum += sum(row) print("Sum of all elements in the matrix:", total_sum)
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Output 11