Dictionaries in Python

How to read/write dictionaries?

d = dict()

# or

d = {}

# Key : Value structure
d = { 'software' : 10 }

# Read a value from the dictionary
print(d['software'])
# 10

# Add a new key to the dictionary
d['language'] = 6

word = 'hello'
if word in d:
    print(f'{word} is in the dictionary')
else: 
    print(f'{word} is not in the dictionary')

Sort a dictionary

keys = []

# key : value
for key, value in d.items():
    keys.append(key)

keys.sort()
print(keys)

for key in keys:
    print(f'{key} is here so many times:', d[key])