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Articles by Niharikaa Aitam
Page 8 of 8
How to read a file from command line using Python?
Reading files from the command line is a common task in many Python scripts and automation workflows. Whether we’re building a simple utility to process text files or developing a complex data analysis tool that being able to accept file input directly from the command line, which enhances the flexibility and usability of our program. Python provides built-in modules such as sys and argparse that make our task straightforward and efficient. In this article, we are going to see the different methods that are used to read a file from the command line using Python - Using sys.argv() In Python, ...
Read MoreHow do we write Multi-Line Statements in Python?
A statement is a logical instruction in Python that the Python interpreter can read and execute. It could be an expression or an assignment statement in Python. Python's assignment statement is fundamental. It specifies how an expression generates and stores objects. In a simple assignment, we create new variables, assign values to them, and alter them. To maintain the value of the expression, this statement supplies an expression and a variable name as a label. Following is the syntax of using the statement in python − variable = expression Creating Multi-Line Statements in Python Statements in Python are often ...
Read MoreHow can I source a Python file from another Python file?
In Python, it is possible to source one Python file from another, which enables us to share data between scripts. In this article, we will go through the different ways to source a Python file from another Python file. Understanding Python File Importing In Python, the process of importing makes to use functions, classes, and variables defined in one Python file within another. This helps us in code reusability and enables us to split our code into multiple files based on functionality. Using the import Statement One of the most common ways to import a Python file is by using ...
Read MoreWhat is the common header format of Python files?
The common header format of Python files is a simple and essential element in any Python script. The Header Format is just an introduction that provides context. In Python, we commonly use a docstring as the header format. A docstring is a special kind of comment enclosed within triple quotes, i.e., either single or double. It's placed right at the beginning of the script, even before any import statements, making it easily visible and accessible to anyone who reads the code. The standard structure of a Python file header is adorned with a docstring. Following is an example of ...
Read MoreHow can I make one Python file run another?
In Python, it is often necessary to execute another file. This is common in cases such as running helper scripts, triggering workflows, or executing test cases. Python provides several ways to execute one file using another. Depending on the requirement, whether we want to reuse functions, execute a file directly, or run it as a subprocess. Let us look at these solutions one by one - Understanding Python Script Execution Before proceeding with how to run one Python file from another, it's important to understand how Python scripts are executed. When we run a Python file using python myscript.py ...
Read MoreHow does underscore \\\\\\\\\"_\\\\\\\\\" work in Python files?
In Python, the underscore (_) is a special character with different meanings based on how and where it is used. It plays a significant role in readability, naming conventions, and interpreter behavior. In this article, we will discuss different scenarios of using the Underscore(_) in Python. Single Underscore _ in Python The single underscore (_) is used in Python for special purposes, which depend on the context. These are one of the most versatile and commonly seen symbols in clean and Pythonic code. Use Cases of _ (Single Underscore) The single underscore(_) can be used in different use cases. Let's ...
Read MoreHow to create an empty dictionary in Python?
The dictionary is the data structure available in python. Dictionaries are also known as associative memories or associative arrays. It is represented by curly braces {}. It stores the data in the form of key and value pairs. Data from a dictionary can be accessed by its key, unlike other data structures which use indexes. To retrieve the value associated with a particular key, one must use index values. As keys in dictionaries are unique, any immutable object such as tuples or strings can be used to identify them. However, values stored in dictionaries do not need to be ...
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