Learn Python - Python tutorial - dictionary python - Python examples - Python programs
1. str(dic) :- This method is used to return the string, denoting all the dictionary keys with their values.
2. items() :- This method is used to return the list with all dictionary keys with values.
python - Sample - python code :
# Python code to demonstrate working of
# str() and items()
# Initializing dictionary
dic = { 'Name' : 'Nandini', 'Age' : 19 }
# using str() to display dic as string
print ("The constituents of dictionary as string are : ")
print (str(dic))
# using str() to display dic as list
print ("The constituents of dictionary as list are : ")
print (dic.items())python tutorial - Output :
The constituents of dictionary as string are :
{'Name': 'Nandini', 'Age': 19}
The constituents of dictionary as list are :
dict_items([('Name', 'Nandini'), ('Age', 19)])
3. len() :- It returns the count of key entities of the dictionary elements.
4. type() :- This function returns the data type of the argument.
python - Sample - python code :
# Python code to demonstrate working of
# len() and type()
# Initializing dictionary
dic = { 'Name' : 'Nandini', 'Age' : 19, 'ID' : 2541997 }
# Initializing list
li = [ 1, 3, 5, 6 ]
# using len() to display dic size
print ("The size of dic is : ",end="")
print (len(dic))
# using type() to display data type
print ("The data type of dic is : ",end="")
print (type(dic))
# using type() to display data type
print ("The data type of li is : ",end="")
print (type(li))python tutorial - Output :
The size of dic is : 3 The data type of dic is : The data type of li is :
5. copy() :- This function creates the shallow copy of the dictionary into other dictionary.
6. clear() :- This function is used to clear the dictionary contents.
python - Sample - python code :
# Python code to demonstrate working of
# clear() and copy()
# Initializing dictionary
dic1 = { 'Name' : 'Nandini', 'Age' : 19 }
# Initializing dictionary
dic3 = {}
# using copy() to make shallow copy of dictionary
dic3 = dic1.copy()
# printing new dictionary
print ("The new copied dictionary is : ")
print (dic3.items())
# clearing the dictionary
dic1.clear()
# printing cleared dictionary
print ("The contents of deleted dictionary is : ",end="")
print (dic1.items())python tutorial - Output :
The new copied dictionary is :
dict_items([('Age', 19), ('Name', 'Nandini')])
The contents of deleted dictionary is : dict_items([])