list and tuple in python code example

Example 1: python list of tuples

#List of Tuples
list_tuples =  [('Nagendra',18),('Nitesh',28),('Sathya',29)]

#To print the list of tuples using for loop you can print by unpacking them
for name,age in list_tuples:
  print(name,age)

#To print with enumerate--->enumerate is nothing but gives the index of the array.
for index,(name,age) in list_tuples:
  #print using fstring
  print(f'My name is {name} and age is {age} and index is {index}')
  #print using .format
  print('My name is {n} and age is {a} and index is {i}'.format(n=name,a=age,i=index))

Example 2: list vs tuple python

mylist : list = [] # <-- a list variable can be defined either as [] or <varname> : list
mytuple : tuple = () # <-- a tuple variable can be defined either as () or <varname> : tuple

Example 3: tuple() python

example = [1, 2, 3, 4]
# Here is a list above! As we both know, lists can change in value
# unlike toples, which are not using [] but () instead and cannot
# change in value, because their values are static.

# list() converts your tuple into a list.
tupleexample = ('a', 'b', 'c')

print(list(tupleexample))

>> ['a', 'b', 'c']

# tuple() does the same thing, but converts your list into a tuple instead.

print(example)

>> [1, 2, 3, 4]

print(tuple(example))

>> (1, 2, 3, 4)

Example 4: list of tuples python

import string
fhand = open('romeo-full.txt')
counts = dict()
for line in fhand:
    line = line.translate(None, string.punctuation)
    line = line.lower()
    words = line.split()
    for word in words:
        if word not in counts:
            counts[word] = 1
        else:
            counts[word] += 1

# Sort the dictionary by value
lst = list()
for key, val in counts.items():
    lst.append( (val, key) )

lst.sort(reverse=True)

for key, val in lst[:10] :
    print key, val

Example 5: tuples in python

# the tuples are like the Read-Only they are not to be changed or modified they're constant

letters = "a", "b", "c", "d"    # you can use () as they are optional
print(letters)
"""
    tuples are immutable but it's important because they don't returns the bugs
    
    these are sequence types means you can iterate over them by it's index numbers
    
    tuples data can't be changed but list's data can be changed
"""

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C Example