dict syntax in python code example
Example 1: how to use dictionaries in python
student_data = {
"name":"inderpaal",
"age":21,
"course":['Bsc', 'Computer Science']
}
print(student_data['name'])
print(student_data['age'])
print(student_data['course'])[0]
Example 2: python dict
my_dict = {
'spam': 'eggs',
'foo': 4,
100: 'bar',
2: 0.5
}
print(my_dict['spam'])
print(my_dict['foo'])
print(my_dict[100])
print(my_dict[2])
for key, value in my_dict.items():
print(key, value)
print(len(my_dict))
my_dict['baz'] = 'qux'
my_dict['baz'] = 'quxx'
del my_dict['spam']
print(my_dict.copy())
print(my_dict.fromkeys('added', 100))
print(my_dict.get('foo'))
print(my_dict.items())
print(my_dict.keys())
print(my_dict.values())
my_dict.setdefault('a', 'b')
my_dict.pop('foo')
my_dict.popitem()
my_dict.update({'baz': 'val'})
my_dict.clear()
Example 3: dictionaries in python 3
clear() - Removes all the elements from the dictionary
copy() - Returns a copy of the dictionary
fromkeys() - Returns a dictionary with the specified keys and value
get() - Returns the value of the specified key
items() - Returns a list containing a tuple for each key value pair
keys() - Returns a list containing the dictionary's keys
pop() - Removes the element with the specified key
popitem() - Removes the last inserted key-value pair
setdefault() - Returns the value of the specified key. If the key does not exist: insert the key, with the specified value
update() - Updates the dictionary with the specified key-value pairs
values() - Returns a list of all the values in the dictionary