In Python, file handling involves many operations; among them, one such task is opening a file for reading and this makes it possible for you to access and retrieve data from the file. In this article, we will discuss and learn how to open a file in read mode using ... Read More

File handling in Python, among others, involves the task of opening a file in append mode which has its own importance in that scheme of things. Append mode makes it possible for you to add new content to a file without deleting or overwriting the existing data. Here, in this ... Read More

The task of appending content to a file is a common and routine task in Python programming. If you need to log data, store user inputs, or update a configuration file, appending makes it possible for you to add new data or information to a file without overwriting existing content. ... Read More

In Python, classes are like blueprints for creating objects. Once you define a class, you can create objects (also called instances) based on that class. Here are four ways to create class objects in Python: Creating a Class and an Instance Example In this example, we define a class called ... Read More

The preferred way to concatenate a string in Python is by using the + operator or the join() method. Here's a step-by-step explanation of each method − Using the + operator To concatenate two strings using the + operator, simply put the strings next to each other with a + ... Read More

On Windows, you can set the PYTHONPATH environment variable to specify the directories that Python should search for modules when importing them. Here are several ways to set the PYTHONPATH environment variable on Windows Set PYTHONPATH using Command Prompt You can set the PYTHONPATH environment variable using Command Prompt by ... Read More

To set the Python environment variable PYTHONPATH on a Mac, you can follow these steps − Open the Terminal app on your Mac. Navigate to your home directory by typing cd ~ and pressing Enter. Open the .bash_profile file in a text editor by typing open -e .bash_profile and pressing ... Read More

To set the PYTHONPATH environment variable on Linux, follow these steps − Open a terminal window on your Linux system. Determine the path to your Python module or package. For example, suppose you have a Python module named mymodule located in the /home/user/myproject folder. Set the PYTHONPATH environment variable to the path of your module or package using ... Read More

Any character or group of characters that depicts horizontal or vertical space is known as whitespace. A whitespace character usually takes up space on a page even though it does not correspond to any visible mark when it is rendered. Pressing the spacebar will allow you to enter a whitespace ... Read More

Passing Drop Down Box Data to CGI ProgramDrop Down Box is used when we have many options available but only one or two will be selected.Here is example HTML code for a form with one drop down box − Maths ... Read More