Learning Python-Basic course: Day 11, Multidimensional lists and Tuples

list=[[1,2,3],[2,3,4],[3,4,5]]

>>> list=[[1,2,3],[2,3,4],[3,4,5]]>>> print(list[1])[2, 3, 4]>>> print(len(list))3>>> print(list[2][1])4>>> print(len(list[0]))3>>> print(list)[[1, 2, 3], [2, 3, 4], [3, 4, 5]]>>> for i in range(0,len(list)):...  for j in range(0,len(list[i])):...   print(list[i][j])...123234345>>> for i in list:...  for c in i:...   print(c,end="")...  print()...123234345

a=[]r=int(input("Please enter the number of rows "))c=int(input("Please enter the number of columns "))for i in range(r):    #Append an empty sublist    a.append([])    for j in range(c):        num=int(input("Enter a value "))        a[i].append(num)print(a)for i in a:     for j in i:         print(j, end="")         #here, "" stands for tab, i.e. leave spaces     print()

Please enter the number of rows 3Please enter the number of columns 2Enter a value 1Enter a value 2Enter a value 3Enter a value 4Enter a value 5Enter a value 6[[1, 2], [3, 4], [5, 6]]1   2   3   4   5   6   

>>> a=('Aatmaj','Zephyr',163,'1234')>>> b=(1,2,3,4,5)>>> c='a','b','c','d'>>> print(a)('Aatmaj', 'Zephyr', 163, '1234')>>> print(len(a))4>>> print(a[3])1234>>> d=((1,2,3),a,b,('a','c','2',5))>>> print(d)((1, 2, 3), ('Aatmaj', 'Zephyr', 163, '1234'), (1, 2, 3, 4, 5), ('a', 'c', '2', 5))>>> print(len(d))4>>> print(len(d[1]))4>>> print(d[2][3])4>>> print(d[4][2])Traceback (most recent call last):  File "<stdin>", line 1, in <module>IndexError: tuple index out of range>>> a.append(3)Traceback (most recent call last):  File "<stdin>", line 1, in <module>AttributeError: 'tuple' object has no attribute 'append'

   1 2 3a= 4 5 6    7 8 9

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