simple_dict = {
'a': 1,
'b': 2
}
my_dict = {key: value**2 for key,value in simple_dict.items()}
print(my_dict)
#result = {'a': 1, 'b': 4}# dict comprehension we use same logic, with a difference of key:value pair
# {key:value for i in list}
fruits = ["apple", "banana", "cherry"]
print({f: len(f) for f in fruits})
#output
{'apple': 5, 'banana': 6, 'cherry': 6}>>> {x: x**2 for x in (2, 4, 6)}
{2: 4, 4: 16, 6: 36}
# Dictionary Comprehension Types
{j:j*2 for i in range(10)}
#using if
{j:j*2 for j in range(10) if j%2==0}
#using if and
{j:j*2 for j in range(10) if j%2==0 and j%3==0}
#using if else
{j:(j*2 if j%2==0 and j%3==0 else 'invalid' )for j in range(10) }print({i:j for i,j in zip(txt_list,num) if i!="All"})# Dictionary comprehension
{i:i*2 for i in range(10)}