Problem Formulation: How to send and receive UDP multicast messages in Python? Background: Multicast is a distributed systems concept for group communication over a network (one-to-many or many-to-many). The choice of the network “transport layer” which the Multicast uses determines its type—for example, IP Multicast is sending a multicast over the IP layer and UDP … Read more
Problem Formulation: How to send and receive UDP messages in Python? Background: The User Datagram Protocol (UDP) network layer allows you to send messages without providing deliverability guarantees. UDP is unreliable—massages may be lost or delivered out of order. But this makes UDP also fast, lightweight, and the protocol of choice for many streaming scenarios … Read more
Problem Formulation Given string s, and character c. How to remove all characters in s after the first occurrence of c? Example Given: – string s = ‘hello world’, and – empty space character c = ‘ ‘. Desired result: ‘hello’ Method 1: string.index() + slicing To remove everything after the first occurrence of character … Read more
Hey Finxters! It is time for another Python subject that will come up for sure within your Python developer career. Problem Formulation: How to iterate over a generator twice? Then we will look at three solutions on how we can iterate twice, or even multiple times, over a generator or iterator. First, we must understand … Read more
This article will cover some advanced mathematical functions provided by the Sympy library. If you still have not read the first introductory article to Sympy, you can check it out here. Since most of the basic functions, like the ones for initiating a Sympy session on your terminal or for defining a function/variable, will not … Read more
First, let’s have a look at an image—hopefully telling us more than a thousand words: Okay, let’s go back to square one—before you understand hypergraphs, we first need to understand graphs. What Are Graphs? You most likely know graphs. The web graph consists of websites connected via hyperlinks. The websites are graph vertices and the … Read more
Python’s built-in filter() function is used to filter out elements that pass a filtering condition. It takes two arguments: function and iterable. The function assigns a Boolean value to each element in the iterable to check whether the element will pass the filter or not. It returns an iterator with the elements that pass the … Read more
Problem Formulation: How to fix the TypeError: len() of unsized object? TypeError: len() of unsized object There are many possible ways why this array may occur. One common pitfall is to use the len() function on a NumPy array with only one value. Example: Let’s consider the minimal example that creates this error message! Reason … Read more
Machine Learning (ML) is a sought-after skill in today’s automated world. Google is one of the key players in the Machine Learning space. With the growing scale and popularity of deep learning, the limitations of a single machine become more and more pronounced. Motivation Training a model on a single computer can take a long … Read more
Hey Finxters! Another 10 of the best cheat sheets is here for you to peruse and hang on your wall with your other Python cheat sheets on the wall! Today, we are going to browse cheat sheets for Scipy!! For a quick explanation, SciPy is a scientific computation library that uses NumPy underneath. SciPy stands … Read more
Python’s built-in function len() returns the length of the given string, array, list, tuple, dictionary, or any other iterable. The type of the return value is an integer that represents the number of elements in this iterable. Usage Learn by example! Here are some examples on how to use the len() built-in function. The examples … Read more
MapReduce is the name of both (i) a distributed processing programming model provided by the Apache Foundation, and (ii) a functional processing technique. It consists of two steps: the map() function and the reduce() function. Map() converts each element in a data set into a modified element. Reduce() takes subsets of modified elements and aggregates … Read more