Subtitle: Avoid Hard-Coded Data While Making Your (And Others) Life Easier When the subject of config, or configuration, files comes up there is often confusion on what they are, how to read them, and the benefits that come from their use. In this article, we will cover what config files are before introducing the Python …
Creating, Reading & Updating A Config File with Python Read More »
If you have worked on a Python application where you had data in another folder, you would have used a command-line tool like cd to change directories. In this tutorial, we will learn a more Pythonic way of changing directories. Changing directories using the os.chdir function The easiest way to change the working directory in …
Problem Formulation Given the path to a text file such as /path/to/file.txt. How to read all the content from the file and print it to the Python standard output? Standard File Reading and Printing The standard approach to read the contents from a file and print them to the standard output works in four steps: …
How to Print the Content of a .txt File in Python? Read More »
Problem Formulation Given a Windows operating system on which you have the Microsoft Outlook email program installed. How to open Microsoft Outlook using only a function call in your Python script? Solution: os.startfile(‘outlook’) The easiest way to open Outlook on Windows using only a short and concise Python One-Liner is to use the os.startfile(‘outlook’) function …
Problem Formulation: How to Remove a Directory in Python? The rm command in Linux removes a specific directory. You can also add the options -r remove the directory recursively -f ignore nonexistent files and arguments and don’t prompt the user to ask for confirmation So, if you run rm -rf my_directory, it’ll forcefully remove my_directory …
Problem Formulation You create images in the Tag Image File Format (TIFF). You want to add custom metadata to the image such as the location or other context information important for post-processing. How can you accomplish this? Solution Install and import the library tiffile. Use the tiffile.imsave() function to store the file at a given …
What’s the Best Way to Save Image Metadata Alongside a TIFF? Read More »
Summary: You can run multiple versions of Python on Windows using one of the following methods: Using entire path to execute the code. Creating A Shortcut or Symbolic Link to the executable files. Using Pylauncher: Use Shebang (#) in The Script Run Pylauncher Command Using Virtual Environments. ➠ Problem Formulation: You might have two versions …
Python’s built-in open() function opens a file and returns a file object. The only non-optional argument is a filename as a string of the file to be opened. You can use the file object to access the file content. For example, file_obj.readlines() reads all lines of such a file object. Here’s a minimal example of …
Python open() Function — An 80/20 Guide By Example Read More »
A newline is used to mark the end of a line and the beginning of a new one, and in this article we are going to look at how to read a file in Python without these newline breaks. To begin with we are going to create a simple .txt file. After each line of …
Problem Formulation: Say, you set an environment variable and you want to access it in your Python script. How to get the value of the environment variable? Background: Environment variables are external to the Python environment. They describe the operating system environment we are using. The applications installed use this information to complete specific tasks …
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In this tutorial, you’ll learn how to open a PDF file in an external PDF reader or the browser, using a simple Python command. There are many variants to this problem, so let’s dive right into the different ones—and their solutions! Method 1: Open PDF Standard Viewer with os.system(path) — With CMD You can open …
Why Stop a Python Script? As a programming language,Python is designed to read code line by line and stop at the end of the script by default – so why would we need to stop it? Whilst there are a number of reasons this may be necessary, they basically fall into two distinct categories: You …
How to Stop a Python Script (Keyboard and Programmatically) Read More »