💬 Question: How to import a CSV file to a Pandas DataFrame in Python? This article will discuss the most interesting examples to read a CSV file to a Pandas DataFrame. If not specified otherwise, we use the following CSV file for all examples: my_file.csv: Name,Job,Age,Income Alice,Programmer,23,110000 Bob,Executive,34,90000 Carl,Sales,45,50000 Let’s get started! Example 1 – … Read more
Basic Challenge 💬 Challenge: How to convert a CSV file to a text file in Python? Here’s the content of an example CSV file “my_file.csv” used in our code snippet below: If you visualize this CSV in table form, it looks like this: Name Job Age Income Alice Programmer 23 110000 Bob Executive 34 90000 … Read more
Summary: To initialize multiple variables to the same value in Python you can use one of the following approaches: Use chained equalities as: var_1 = var_2 = value Use dict.fromkeys This article will guide you through the ways of assigning multiple variables with the same value in Python. Without further delay, let us dive into … Read more
Problem Formulation What is the most Pythonic way to convert a CSV file to a list of dictionaries, a list of tuples, and a list of lists? Let’s go over those challenges one by one. 💫 Note: I only show you the most Pythonic solution to each problem — based on my personal opinion — … Read more
This article focuses on installing the Python application component in EasyPHP. This article also assumes you have an IDE installed and have completed the following articles: Setup EasyPHP DevServer on My Local Windows PC Setup the EasyPHP Dashboard CSV to MySQL Table [EasyPHP + PHPMyAdmin] and the following steps: Started EasyPHP Opened the Dashboard Started … Read more
This article focuses on configuring Python to work with MySQL. This article also assumes you have an IDE installed and have completed the following articles: Setup EasyPHP DevServer on My Local Windows PC Setup the EasyPHP Dashboard CSV to MySQL Table [EasyPHP + PHPMyAdmin] and the following steps: Started EasyPHP Opened the Dashboard Started the … Read more
In Python, the numpy.gradient() function approximates the gradient of an N-dimensional array. It uses the second-order accurate central differences in the interior points and either first or second-order accurate one-sided differences at the boundaries for gradient approximation. The returned gradient hence has the same shape as the input array. Here is the argument table of … Read more
Problem Formulation Given a CSV file (e.g., stored in the file with name ‘my_file.csv’). INPUT: file ‘my_file.csv’ 9,8,7 6,5,4 3,2,1 Challenge: How to convert the CSV file to a list of tuples, i.e., putting the row values into the inner tuples? OUTPUT: Python list of tuples [(9, 8, 7), (6, 5, 4), (3, 2, 1)] … Read more
This article assumes you have installed the EasyPHP Devserver in your Local Environment. Please click here to complete these steps before moving forward if you have not done so. Start EasyPHP Navigate to the Taskbar and right-mouse-click over the EasyPHP Devserver icon to display a pop-up similar to below. Next, click the Devserver 17 menu … Read more
This article assumes you have installed and set up the EasyPHP Devserver in your Local Environment. Please click here to complete these steps before moving forward if you have not done so. Ensure the following steps are completed before moving forward: Start EasyPHP Open the Dashboard Start the HTTP and Database servers As a precursor … Read more
Problem Formulation Given a CSV file (e.g., stored in the file with name ‘my_file.csv’). INPUT: file ‘my_file.csv’ 9,8,7 6,5,4 3,2,1 Challenge: How to convert it to a list of lists (=nested list), i.e., putting the row values into the inner lists? OUTPUT: Python list of lists [[9, 8, 7], [6, 5, 4], [3, 2, 1]] … Read more
To find the number of digits in an integer you can use one of the following methods: (1) Use Iteration (2) Use str()+len() functions (3) Use int(math.log10(x)) +1 (4) Use Recursion Problem Formulation Given: An integer value. Question: Find the number of digits in the integer/number given. Test Cases: Input: num = 123 Output: 3 … Read more