dictionary

In this article we will discuss different ways to fetch the first key of a dictionary. Then we will look how to select first N keys of a dictionary in python. Table of contents Get first key from a dictionary using keys() method. Get first key in a dictionary using iter() & next(). Get first […]

In this article we will discuss different ways to check if a dictionary is empty or not. These two ways to check if a python dictionary is empty or not, By casting dictionary to bool in if statement. Using len() function. Suppose we have two dictionaries: The first dictionary contains strings as keys and integers

In this article, we will discuss how to create and manage a dictionary in which keys can have multiple values. In python, if we want a dictionary in which one key has multiple values, then we need to associate an object with each key as value. This value object should be capable of having various

In this article we will discuss different ways to check if a value exists in a dictionary or not. We will cover the following ways, Suppose we have a dictionary of strings and ints i.e. Now in this dictionary we want to check if any key contains the value 43 or not. There are different

In this article we will discuss different ways to sort a python dictionary by values in both ascending & descending order using sorted()  function by either using lambda function or itemgetter() as a key argument.

In this article we will discuss how to use the clear() method of dict class in python. dict.clear() Syntax: In python, the dict class provides a member function to empty a dictionary i.e. dict.clear() Parameters: None It does not take any parameter. Returns: None It does not return any value. It deletes all the elements

In this article we will discuss how to use the pop() method of dictionary class in python. dict.pop() Syntax: In python, dictionary class provides a function to delete an element from the dictionary i.e. dict.pop(key[, default]) Parameters: Key: The key that needs to be deleted from the dictionary. Default: The default value that will be

In the article we will discuss how to use the dict.get() function with some examples. Then we will also discuss the differences between dict[key] and dict.get(key).

In this article discuss how to use the update() method of the dict class in python and then we will look at some examples of the update() function.

In this article we will discuss how to use values() function of dict class in python and then we will see several examples of the values() function.