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Articles by Niharikaa Aitam
Page 7 of 8
How to monitor Python files for changes?
Monitoring Python files for changes is essential in many development and automation scenarios such as triggering automatic reloads, running tests, or updating services when the source code is modified. This is particularly useful in web development, machine learning pipelines or custom tooling where real-time responsiveness to file updates is beneficial. One effective way to achieve this in Python is by using the watchdog library which is a simple and efficient tool that listens for file system events like creation, modification, and deletion. With watchdog library the developers can set up observers that watch specific directories and respond to the changes ...
Read MoreHow to find current directory of program execution in Python?
In Python, determining the current directory of program execution is a common task, especially when working with file operations, configuration of files or dynamically accessing resources. The current directory refers to the location from which the script is being run, but not necessarily where the script file resides. Python provides two main ways to retrieve the current directory information, using the os module and the pathlib module. Significance of the Current Directory The current directory in Python is the folder from which our script is being executed. It’s important to find the current directory because all the relative file paths ...
Read MoreHow do I copy a binary file in Python?
In Python, while working with files, we may need to duplicate binary files. In this article, we will go through various ways to explore efficient methods of copying binary files in Python. First, we need to understand about Binary format and Binary File Copying, before proceeding with various ways to copy a binary file. What is Binary Format? Binary format is a method of storing data in the form of binary digits, such as 0s and 1s. Unlike text format, which represents data using readable characters like letters and numbers, binary format stores data as raw byte sequences. Binary file ...
Read MoreHow to find all files in a directory with extension .txt in Python?
Searching for specific files in a directory is a difficult task, and this can be accomplished by using different tools in Python. In this article, we will see how to find all the files in a directory with an extension .txt using Python. Here are the different approaches, let's see one by one in detail - Using os.listdir() The os.listdir() is a function from Python's built-in os module which returns a list of names, i.e., as strings, of the entries in the directory given by the path. Example In this example, we will use the function in Python's os.listdir() to ...
Read MoreHow do we use Python in script mode?
Python is a high-level programming language that helps users to run a program and integrate systems more efficiently, as it executes a program in comparatively fewer lines of code. In Python programming language, a code can be executed in two ways - Interactive Mode Script Mode In this article, we will learn how to execute a Python program in script mode on Windows. However, the steps are almost the same for other operating systems.Python Script Mode Script mode in Python allows us to write Python code in files with the .py extension and run the entire program at ...
Read MoreHow do we use Python in interactive mode?
Python is a high-level programming language that helps a user to run a program and integrate systems more efficiently, as it executes a program in comparatively fewer lines of code. In Python programming language, a code can be executed in two ways - Interactive Mode Script Mode In this article, we will learn how to execute Python code in Interactive mode in Windows. However, the commands are almost the same in other operating systems as well. Interactive Mode Interactive mode in Python is a built-in feature that allows users to execute Python commands one line at a time. ...
Read MoreWhat is the best way to run all Python files in a directory?
To run a Python file in a directory, we generally use the Python or python3 command. However, it only runs a single file at a time. But executing one file each on a shell script seems hectic. Therefore, we must come up with a way to execute all files present in a directory simultaneously. In this article, let's go through the different methods to run all the Python files in a directory at a time. Using subprocess Module Using exec() function Using shell scripts Using multiprocessing Using subprocess.run() The subprocess ...
Read MoreWhat do the python file extensions, .pyc .pyd .pyo stand for?
What are Python File Extensions? Python file extensions are the suffixes that are added to the end of file names, which indicate the type of content inside the file and how it relates to the Python programming environment. These extensions help the interpreter, operating system, and developers understand how to process or execute the file. The .py, .pyc, .pyo, and .pyd files are the most commonly used Python file extensions and have their significance when it comes to executing python programs. Here are the Python file extensions and their descriptions - .py: The input source code that you've written. ...
Read MoreWhat is the difference between single and double quotes in python?
In Python, both single quotes (') and double quotes (") are used to define string literals, and they function in the same way. For example, if a string contains a single quote character, like in a contraction, i.e., it’s by using double quotes avoids the need for escape characters by making the code cleaner and easier to read. Similarly, single quotes can be useful when a string contains double quotation marks. Single Quotes in Python Single quotes are used to wrap small and short strings in Python, such as string literals or identifiers. We must remember that using single quotes ...
Read MoreHow to write into a file from command line using Python?
Through the command line, we can easily create dynamic scripts that modify or generate files based on user input. This functionality is useful for generating logs, exporting data, or saving outputs from calculations. The following are the basic steps we need to follow to write data into a file from the command line - Accept the file name and optional data from the command line. Open the specified file in write mode. Write the content to the file. Handle possible errors such as ...
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