Problem Formulation Given is a text file, say my_file.txt. How to modify its content in your Windows command line working directory? I’ll start with the most direct method to solve this problem in 90% of cases and give a more “pure” in-terminal method afterward. Method 1: Using Notepad The easiest way to edit a text … Read more
For my current web project I need to upload 200 images to my website. All of them are in the same folder. Here’s the problem: đ¤¯ Challenge: My images have file sizes of 2 to 3 MB, so they are far too big and will significantly slow down my website. đ To reduce the file … Read more
I’m currently working on a website project for the Finxter ecosystem, where I’m given a folder with subfolders (and subfolders within) that contain image files. Example folder structure: folder — subfolder1 —- image1.jpg —- image2.jpg —- image3.jpg — subfolder2 —-image1.jpg —-image2.jpg Across the subfolders, the files may have the same name, which causes an issue … Read more
đŦ Question: Say, you want to dynamically create a variable in your Python script that is named like a string. For example, you want to name the variable after a string value ‘Vladimir’ and assign a value to it so you can access the results using only the variable name Vladimir without the string quotes … Read more
To list directories in Python, import the os module and call the os.listdir() function on a specific directory. đĄ Info: The os module provides a way to interact with the operating system. It is part of the standard library within Python 3. You can use the os.path() module to check if each item in the … Read more
Problem Formulation and Solution Overview This article shows how to generate a formatted PDF file from a CSV file using the ReportLab and Pandas libraries in conjunction with slicing. âšī¸ Python offers numerous ways to generate a PDF file. One option is to use the ReportLab library. The article selected the path that used the … Read more
Problem Formulation đŦ Question: Given a binary string in your Python script, such as b’this is a binary string’. How to write the binary string to a file in Python? For example, you may have tried a code snippet like this that will not work with file.write(): Because this yields a TypeError: Traceback (most recent … Read more
Hex String as Binary Data To convert a hex string such as ‘FF0001AF’ to binary data, use the binascii.unhexlify(hex_str) function that returns the binary data represented by the hexadecimal string. Note that this converts two hex string digits to one byte, i.e., hex string ‘F0’ is converted to the byte representation 11110000, or in binary … Read more
Problem Formulation and Solution Overview This article will show you how to import external Python code and use this code in another Python script. To make it more interesting, we have the following running scenario: đŠâđĢ Fun Example: Pam, a High School Teacher, wants an easier way to calculate exam totals and produce student averages. … Read more
Problem Formulation and Solution Overview Let’s say, for this article, you have been asked to write Python code that reads a file and displays one (1) character from that file per iteration until all contents have been read in. đŦ Question: How would you write this code? Well, this task can be completed by using … Read more
Problem Formulation and Solution Overview This article will show you how to read and display the first line of a file in Python. For this article, we will work with a flat-text file containing five (5) possible things to do during your lifetime. This file is saved to bucket_list.txt and placed into the current working … Read more
Do you need to create a function that returns a file but you don’t know how? No worries, in sixty seconds, you’ll know! Go! đ A Python function can return any object such as a file object. To return a file, first open the file object within the function body, handle all possible errors if … Read more