If you’re working with the command line in Windows or the terminal in Linux and macOS, you know about the feature of the command-line history. You can access all previously issued commands with the arrow up or arrow down keys. As a Python coder, you want to be able to control everything from your Python …
What is the exec() Function exec() is a built-in Python function that is most commonly used to dynamically execute code, either as a string or object code. To properly understand how we can use exec() to import libraries and modules we need to familiarize ourselves with the syntax of the function itself, as it becomes relevant later: …
How to Import Libraries in Python’s exec() Function? Read More »
If you aspire to work in the field of machine learning, you might have to deploy your machine learning model in production. In this blog post you will learn how to deploy a simple linear regression model in FastAPI. FastAPI is a modern web framework to deploy your application in Python. Getting Started Let us …
This article shows how to solve math equations and expressions symbolically, in Python. Thanks to the Sympy library, this turns out to be an extremely easy task. However, as you will see in the following examples, the number of tools and functions provided by this library is huge. Thanks to all its features, Sympy represents …
Hey Finxters! Among the many daily tasks you can achieve with Python, there is one Siri-like task that comes quite handy: managing your emails in a programmatic way. Of course, many emails need your human understanding to be processed properly, and this article is not about implementing a neural network to fine-tune every single email …
EZGmail and Python — Managing Your Emails Programmatically Read More »
Problem Formulation: Given a string of letters and numbers. How to split the string into substrings of either letters or numbers by using the boundary between a letter and a number and vice versa. Examples: Have a look at the following examples of what you want to accomplish. ‘111A222B333C’ —> [‘111’, ‘A’, ‘222’, ‘B’, ‘333’, …
How to Split a String Between Numbers and Letters? Read More »
Have you ever tried to multiply two NumPy arrays together and got a result you didn’t expect? NumPy’s multiplication functions can be confusing. In this article, we’ll explain everything you need to know about matrix multiplication in NumPy. Watch the video where I go over the article in detail: To perform matrix multiplication between 2 …
NumPy Matrix Multiplication — np.matmul() and @ [Ultimate Guide] Read More »
Hey Finxters! It is time for another top 10 cheat sheets! Today, we are going to take a look at TKinter in Python! For those of you who do not know, Tkinter is a GUI widget system for Python. I will be giving you the best cheat sheets I am able to find online. That …
Many coders struggle with understanding the zip function. Let’s fix this! The zip() function takes an arbitrary number of iterables and aggregates them to a single iterable, a zip object. It combines the i-th values of each iterable argument into a tuple. Hence, if you pass two iterables, each tuple will contain two values. If …
Problem Formulation: Given a video file. How to get its duration in seconds using Python code? The video can have any of the following video formats: MP4 AVI Flash Video Mov Method 1: Using Subprocess + ffprobe Within your Python shell, you can run any external command with the module subprocess. The external tool ffprobe …
Problem Formulation Given a number of functions f1, f2, …, fn. How to chain the function calls so that the output of the i-th function is used as input for the (i+1)-th function? f1() —> output f1() is input of f2() —> output f2() is input of f3() … —> … is input of fn() …
Numpy is a popular Python library for data science focusing on arrays, vectors, and matrices. An important application of arrays, matrices, and vectors is the dot product. This article will teach you everything you need to know to get started! The dot product behaves differently for different input arrays. Dot Product 1D array and Scalar …
