Machine Learning

What is a ‘dict_keys’ Object in Python? Dict_keys objects are a special type of dynamic view which shows keys in a dictionary. Which means that any changes made in the dictionary will be reflected in the dict_keys view. In simple terms ‘dict_keys’ object is a view object which provides a dynamic view of keys in […]

What does unhashable type mean in Python? Unhashable type means that object does not have a fixed hash value. Object like that cannot be used  as a key in a dictionary or an element in a set. Data structures like dictionaries and sets are hash based data structures. Hash based data structures means that the structure relies

Introduction to One-Hot Encoding When we want to convert categorical data into a numerical format we use One Hot encoding which can be understood by computer. In one hot encoding we create new binary columns for each unique value in categorical features.  In one hot encoding we assign values like 0 or 1 to columns

What is a callable object ?In simple terms any object that can be called using parentheses () is called a callable object. Similarly how we invoke a function. Callables include functions, methods, classes and objects that implement the special __call__() method. In the blog we will learn how to solve typeerror : dict object is

When we look into Python, there are multiple ways to create a list of a particular size with the same value. We need this kind of setting for carrying out operations in bulk. Let’s go through all the different techniques for creating a list of size N with same value. Using a loop to create

The list is one of the important data structures in Python. A developer comes across a list on daily basis which makes it an essential data structure. The list has features like  Can store different data types. It is mutable Ordered collection Can be of dynamic size There are multiple ways of splitting a list

Let’s first explore what is lambda function in Python. The lambda function is anonymous. They are small functions without names. In Python normal functions start with the def keyword followed by name. However, the lambda function begins with the lambda keyword followed by the input parameters. Syntax of lambda function: lambda [parameter_list]: expression A parameter

In this blog, you will learn how to write a list to a file in Python. You have a list for storing data in memory but what if you want to store data in persistence storage? For that, we have text files, CSV  files, JSON files, and Excel files, or else you can use a

When we attempt to serialize a Python datetime object to JSON. We get TypeError: Object of type datetime is not JSON serializable problem. This is because the JSON module does not support the object from the datetime module. To solve this problem we need to convert datetime object to a string format using JSON module