Learning Day-08 ( 01-July-2020 )
Let's Learn Python
# Day-08
Deep Dive into Dictionaries -01
Dictionary:
A dictionary is a collection which is unordered, changeable and indexed. In Python dictionaries are written with curly brackets, and they have keys and values.
# Below are some of the Operations @ Dictionaries.
student={"name": "abc", "rollnumber":"1234", "branch":"cse"}
print(student)
print(type(student))
Output:
{'name': 'abc', 'rollnumber': '1234',
'branch': 'cse'}
<class 'dict'># To find the Length of the Dictionary:
print(len(student))
Output: 3
#Finding the total items in the Dictionary:
student.items()
print(student)
OUtput:
{'name': 'abc', 'rollnumber': '1234',
'branch': 'cse'}
#keys
d1=student.keys()
print(d1)
Output:
dict_keys(['name',
'rollnumber', 'branch'])
#items()
d1=student.items()
print(d1)
Output:
dict_items([('name', 'abc'),
('rollnumber', '1234'),
('branch', 'cse')])
#pop() # To delete an Element in the List
student.pop('branch')
print(student)
Output:
{'name': 'abc',
'rollnumber':'1234'}
#values # To know the Values
student.values()
print(student)
Output:
{'name': 'abc',
'rollnumber': '1234'}
#index() # To Find the Index value of an item.
print(student['rollnumber'])
print(student['name'])
Output:
1234
abc
#clear() # To clear the Entire Data
student.clear()
print(student)
Output:
{}
Likewise we will perform many
Operations @ Dictionary
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