Python

The ‘os‘ module can be used to delete a file in Python: Copy import os file_path = r”Path where the file is stored\file_name.file_extension” os.remove(file_path) Example of Deleting a File using Python (1) Let’s suppose that a file called ‘Products‘ is stored in a ‘Test‘ folder, where the full file path is: C:\Users\Ron\Desktop\Test\Products.csv (2) To delete … Read more

Here are 2 ways to check if a substring exists in a string in Python: (1) Using the “in” keyword: Copy my_string = “This is an example of a string” my_substring = “example” if my_substring in my_string: print(“Substring found”) else: print(“Substring not found”) The result: (2) Using the “find()” method: Copy my_string = “This is … Read more

To append data to an existing file using Python: Copy # The new data to be appended new_data = ” This is the additional data to be added to the file” # File path, including the r letter before the path to avoid unicode errors file_path = r”path to file\file_name.file_extension” # Opening the file in … Read more

Here are 3 ways to get the file paths that match specific patterns within a folder: (1) Fetch all CSV files within the specified folder Copy import glob folder_path = r”C:\Users\Ron\Desktop\Test” csv_files = glob.glob(folder_path + r”\*.csv”) print(csv_files) Where: The result is a list containing the full paths of 3 CSV files inside the “Test” folder: … Read more

Here are 3 ways to write data to a json file using Python: (1) Single dictionary to a json file: Copy import json data = { “product”: “Computer”, “price”: 1300, “brand”: “A” } file_path = r”path to save the json file\file_name.json” with open(file_path, “w”) as file: json.dump(data, file, indent=4) Where: The resulted json file: Copy … Read more

To write a List of Lists to a CSV file in Python: Copy import csv data = [ [“value_1”, “value_2”, “value_3”], [“value_4”, “value_5”, “value_6”], [“value_7”, “value_8”, “value_9″] ] file_path = r”path to store the file\file_name.csv” with open(file_path, “w”, newline=””) as file: csv_writer = csv.writer(file) csv_writer.writerows(data) Example of Writing a List of Lists to a CSV … Read more

The PIL library can be used to resize an image in Python. In this short guide, you’ll see the full steps to resize your image. Steps to Resize an Image in Python (1) To start, install the PIL library using the following command: Copy pip install Pillow (2) Use the script below to resize your … Read more

To install the Matplotlib package in Python: Copy pip install matplotlib Note that the above command would only work if you already added Python to the Path. Otherwise, check the steps below to install the Matplotlib package in Python. Steps to Install the Matplotlib Package in Python (1) Locate the Python Scripts folder using these steps: (2) … Read more

When specifying a file path in Python, you may face the following unicodeescape error if the path contains backslashes: SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position 2-3: truncated \UXXXXXXXX escape In this short guide, you’ll see two ways to overcome this error. Two ways to fix the unicodeescape error (1) Place “r” … Read more

In this guide, you’ll see how to solve the following error: ‘pip’ is not recognized as an internal or external command, operable program or batch file. More specifically, you’ll see two methods to solve this error: Method 1: Install a recent version of Python To start, download a recent version of Python by going to … Read more