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The Python json module allows to use data in JSON format in your applications. Do you want to convert a Python object into JSON or viceversa? This is the right module to do that. The Python json module provides functions to convert a Python object into JSON (dump() and dumps()), this conversion is called serialization … Read more
The Python yield keyword is something that at some point you will encounter as developer. What is yield? How can you use it in your programs? The yield keyword is used to return a value to the caller of a Python function without losing the state of the function. When the function is called again … Read more
If you want to serialize and deserialize Python objects you might have considered using the Python Pickle module. The Python Pickle module allows to serialize and deserialize a Python object structure. Pickle provides two functions to write/read to/from file objects (dump() and load()). It also provides two functions to write/read to/from bytes objects. We will … Read more
Have you ever seen the message “TypeError: unhashable type” when running your Python program? Do you know what to do to fix it? The message “TypeError: unhashable type” appears in a Python program when you try to use a data type that is not hashable in a place in your code that requires hashable data. … Read more
Are you writing a Python application and do you need to check for duplicates in a list? You are in the right place, let’s find out how to work with duplicates. There are several approaches to check for duplicates in a Python list. Converting a list to a set allows to find out if the … Read more
While reading a Python program you might find the expression if __name__ == ‘__main__’. Let’s have a look at what it means and why you should know about it. The condition if __name__ == ‘__main__’ is used in a Python program to execute the code inside the if statement only when the program is executed … Read more
How to count unique values in a Python list? There are multiple ways and in this tutorial we will go through them as a way for you to practice several Python constructs. The simplest way to count unique values in a Python list is to convert the list to a set considering that all the … Read more
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Have you ever seen the error “tuple object does not support item assignment” when working with tuples in Python? In this article we will learn why this error occurs and how to solve it. The error “tuple object does not support item assignment” is raised in Python when you try to modify an element of … Read more
I want to calculate the remainder of the division between two numbers in Python, how can I do it? The Python Modulo operator returns the remainder of the division between two numbers and is represented using the % symbol. The Modulo operator belongs to Python’s arithmetic operators. Here is an example of how to use … Read more
