Problem Formulation and Solution Overview This article will show you how to save a flat-text file to another folder in Python. At some point, you may need to write the contents of a flat-text file from one location to another. This can be done in various ways, as shown below in our examples. For this … Read more
To check your Python version in Google’s Colab, type !python ‐‐version using the exclamation mark ! operator in your Jupyter Notebook cell and click on the “Run” icon. After a couple of seconds an output like Python 3.9 will appear, depending on the version you’ve installed. In Jupyter notebooks, the exclamation mark ! executes commands … Read more
Problem Formulation and Solution Overview When a new file or folder is created, it comes with its own set of default permissions. From time to time, you will need to adjust these permissions. To follow this article, download the finxter.csv file and move this file to the current working directory. What are File Permissions? File … Read more
5 Simple Steps to Install a Library in Python Follow this 5 step procedure to install a library, module, or package in Python: Download Python if you haven’t already and install it in your environment. Add the python or pip commands to your environment variable so you can access them from the command line (Win) … Read more
Problem Formulation and Solution Overview This article will show you how to use the Pillow Library in Python to modify and manipulate images. To make it more interesting, we have the following running scenario: Creative Prints is an online store accepting images from Photographers wishing to sell their art. The Manager would like you to … Read more
Problem Formulation and Solution Overview This article will show you how to delete variables and objects from memory using the del or None keywords. The Python language has several built-in reserved words having specific meanings called keywords. These keywords are reserved for Python and can not be used anywhere else. For example, declaring a variable, … Read more
In this lesson, we will learn several methods for using arguments in the command line and how we can manipulate them to run in our pre-written Python scripts. The three methods we will explore and compare are: sys.argv argparse getopt These are ordered for ease of use and simplicity. I’ve added the getopt() method for … Read more
This article concerns the conversion and handling of CSV file formats in combination with the UTF-8 encoding standard. 💡 The Unicode Transformation Format 8-Bit (UTF-8) is a variable-width character encoding used for electronic communication. UTF-8 can encode more than 1 million (more or less weird) characters using 1 to 4 byte code units. Example UTF-8 … Read more
You can merge multiple text files to a single CSV file in Python by using the glob.glob(‘./*.txt’) expression to filter out all path names of text files in a given folder. Then iterate over all those path names and use the open() function to read the file contents and write append them to the CSV. … Read more
How to Check the Plotly Dash Version in the Terminal or Shell (Unix/macOS/Linux/Windows? To check the dash version in your Windows, Unix, macOS, or Linux environment, you can run the command pip list in your terminal or shell and locate the dash output with version information in the format x.y.z (e.g., 2.5.1) Here’s an example … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to erase the contents of a file in Python. To make it more fun, we have the following running scenario: Let’s say you have a Python script that retrieves the daily stock exchange prices for five (5) Tech Companies and saves it to prices.txt. … Read more
The Python getpass module provides portable password input functionality and allows you to accept an input string in a command-line interface (CLI) without the string being typed from being visible (echoed) in the interface. The getpass module also includes a getuser function for retrieving a username from the relevant environment variables. In this getpass Python … Read more