Python Dictionary Examples

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(dict1)
print(type(dict1))

dict1 = {}
print(dict1)
print(type(dict1))

Output:
{}
<class 'dict'>

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(dict1[1])

Output:
one

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(dict1[-1])

Output:
five

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(dict1[0:5])

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1[6] = "six"
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1[6] = "six"
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.pop(6)
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.pop(0)
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
del dict1[0]
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.clear()
print(dict1)

Output:
{}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(11 in dict1)
print(1 in dict1)

Output:
False
True

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
print(len(dict1))

Output:
5

dict1 = {6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten", 1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.sort()
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten'}

dict1 = {6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten", 1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.sort(reverse=True)
print(dict1)

Output:
{10: 'ten', 9: 'nine', 8: 'eight', 7: 'seven', 6: 'six', 5: 'five', 4: 'four', 3: 'three', 2: 'two', 1: 'one'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict1.reverse()
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict2 = dict1.copy()
print(dict2)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict2 = {6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten"}
dict3 = dict1 + dict2
print(dict3)
print(type(dict3))

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten'}
<class 'dict'>

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
dict2 = {6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten"}
dict1.update(dict2)
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten'}

dict1 = {1: "one", 2: "two", 2: "two", 3: "three", 4: "four", 4: "four", 5: "five", 6: "six", 6: "six", 7: "seven", 8: "eight", 8: "eight", 9: "nine", 10: "ten", 10: "ten" }
dict1 = set(dict1)
print(dict1)

Output:
{1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten'}

dict1 = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five", 6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten"}
print(dict1.index(5))

Output:
4