# Get Last Key and Value from Dictionary lastKey = list(myDictionary.keys())[-1] lastValue = list(myDictionary.values())[-1] print('Last Key: ', lastKey) print('Last Value: ', lastValue) Output: Read Also:How to Get First Key in Dictionary Python? Last Key: email Last Value: h...
The below example shows how to reverse a dictionary usingforloop. #Dictionary with key-value pairs dict_1={100:"python",200:"Java",300:"Ruby",400:"C",500:"C++",600:"R"} print("Dictionary:",dict_1) d_temp={} index=0 for i in dict_1.values(): d_temp[i]=list(dict_1.keys...
and returns thevalueof thekeystored in the dictionary. Unlike thedict.get()method thedict[key]method raises theKeyErrorexception if thekeyis not present in the dictionary. Therefore theKeyErrorexception has to be handled separately if thedict[key]method is used to get thevaluefrom the ...
{1: 'Python', 2: 'Example'} {'firstName': 'Lokesh', 'lastName': 'Gupta', 'age': 39} 2. Accessing the Values To get a value from the python dictionary, we can pass the key to the dictionary in two ways: Using dictionary with square brackets i.e. Dict[key] Using dictionary’...
Use the dict.update() method to replace values in a dictionary. The dict.update() method updates the dictionary with the key-value pairs from the provided value. main.py my_dict = { 'name': 'default', 'site': 'default', 'id': 1, 'topic': 'Python' } my_dict.update( {'name'...
If a value for the default parameter is not provided, it defaults to None, so the get() method never raises a KeyError. # Destructuring dictionaries in for loops You can also destructure dictionaries in for loops. main.py a_dict = { 'first': 'bobby', 'last': 'hadz', 'site': 'bob...
new_dict = {x:x+1 for x in range(3)} # {0: 1, 1: 2, 2: 3} Getting and setting dictionary keys and values To retrieve a value from a dictionary, you use Python’s indexing syntax: example_values["integer"] # yields 32 # Get the year Blade Runner was released blade_runner...
In the above code, we have a dictionary of Newspaper names as a key and cities as a value, and we need to extract all the cities from dict to list in Python. So, we are using thelambda()method to target the value of the key like this ...
duplicates = find_duplicate_values(original_dict) # Printing the duplicate values print("Duplicate Values:", duplicates) Lookat the duplicate value in the dictionary; theoriginal_dictis5for the different keys. Conclusion In this Python tutorial, I have explained three methods tofind duplicate values...
for key,value in zip(my_keys, my_values): my_dictionary[key] = value print(my_dictionary) Thezipfunction matches elements from two lists by index, creating key-value pairs. Conclusion This guide showed how to add items to a Python dictionary. All methods provide unique functionalities, so ...