Python by Example is a classic Python tutorial, written using an example-based approach. Each example addresses a specific problem or challenge. Key topics include: numbers, strings, and tuples; statements and syntax; function definitions; lists, sets, dictionaries; built-in data structures such…
Python class’s __repr__ method converts a string. After defining a custom class in Python, if you try to output its instance in the console or view it in the interpreter session, you won’t get very satisfactory results. The default “convert…
Functions are first-class objects in Python. They can be assigned to variables, stored in data structures, passed as arguments to other functions, and even returned as return values from other functions. A solid understanding of these concepts will not only…
Python A Peek Inside Bytecode When the CPython interpreter executes a program, it first translates it into a series of bytecode instructions. Bytecode is the intermediate language of the Python virtual machine and improves program execution efficiency. The CPython interpreter…
Python Program to Replace Elements in a Tuple In this article, you’ll learn how to find the first and last elements of a tuple using Python. A quick aside, you can access the first and last elements of a tuple…
Python Program to Compare Two Dictionary Elements A dictionary is a powerful data type in Python that allows you to store data as key-value pairs. In this article, we will discuss how to compare two dictionary elements in Python. We…
Python Program to Add Elements to the First and Last Positions of a Linked List In Python, a linked list is a linear data structure consisting of a series of nodes, each of which contains a value and a reference…
Python Dictionary Default Values. Python dictionaries have a get() method that provides alternative values when looking up a key. This method is suitable for many situations. The following is a simple example to demonstrate. Suppose we have the following data…
Python Iterator Chaining. Python iterators have another important feature: you can chain multiple iterators together to write efficient data processing “pipelines.” I first encountered this pattern at David Beazley’s PyCon talk, and it left a deep impression on me. Python’s…
Python os.path.sameopenfile() Python The os.path.sameopenfile() method is used to check if the given file descriptors refer to the same file. A file descriptor is a small integer value that corresponds to a file that the current process has open. A…