Plotly Dash is the best Python framework for quick and easy creation of beautiful dashboard applications. To help you understand it quickly, I just finished our new Python Dash Cheat Sheet as part of our Python Dash book with NoStarch! You can download the PDF by clicking on the image: If you love cheat sheets … Read more
Strings, Printing and ‘\n’ The printing of a basic string is probably the first program the majority of people, myself included, write in Python – does print(‘hello world’) sound familiar? From the outset we know the principle is simple, we can pass our string through the print() function and the output will be displayed in … Read more
Books remain great learning devices — even in the age of AI. But why spending money when you can get them for free? This article compiles a list of 101++ FREE Python books to destroy any excuse of not learning Python. Everyone can afford to read free books! Also check out my two other free … Read more
Python’s set.clear() method removes all elements from this set. All variables that refer to this set object will refer to an empty set after calling the method. Here’s a minimal example where you remove three elements from a set at once by means of the s.clear() method: Syntax Let’s “dive” into the formal syntax of … Read more
Python’s set.copy() method creates and returns a flat copy of this set. Here’s a minimal example where you copy a set with two integers and a string value: Syntax Let’s dive into the formal syntax of the set.copy() method. set.copy() Argument Data Type Explanation – – – The set.copy() method doesn’t take any argument. If … Read more
Python’s set.difference(sets) method creates and returns a new set containing all elements of this set, except the ones in the given set argument or arguments. The resulting set has at most as many elements as this set. Here’s a minimal example where we return a new set with the elements from an existing set after … Read more
Python’s set.difference_update(*args) method removes all elements from this set that are members of any of the given set arguments. For example, s.difference_update({1, 2}) removes elements 1 and 2 from the set s. Its return value is None because it modifies the set it is called upon rather than creating a new set. Here’s a minimal … Read more
Python’s set.discard(x) method removes an element x from this set if it is a member. Otherwise does nothing. Here’s a minimal example where you remove the string element ‘Bob’ from the set by means of the s.discard() method: Syntax Let’s “dive” into the formal syntax of the set.discard() method. set.discard(element) Argument Data Type Explanation element … Read more
Python’s set.intersection(sets) creates and returns a new set consisting of the elements that are members of all sets — this and the set argument(s). The resulting set has at most as many elements as any other set given in the argument list. Here’s a minimal example that creates a new set arising from the intersection … Read more
Python’s set.intersection_update(sets) removes each element that’s not a member of all arguments sets. Here’s a minimal example that modifies existing set object s to be the intersection between sets s and t: Syntax Let’s dive into the formal syntax of the set.intersection_update() method. set.intersection_update(*sets) Argument Data Type Explanation *sets One or more sets The elements … Read more
Python’s set.isdisjoint(set) returns True if no element from this set is a member of the specified set. Sets are disjoint if and only if their intersection is the empty set. Here’s a minimal example that checks whether sets s and t are disjoint: Syntax Let’s dive into the formal syntax of the set.isdisjoint() method. set.isdisjoint(set) … Read more
Python’s set.issubset(set) returns True if all elements of this set are members of the specified set argument. It determines whether the set on which the method is called is the subset of the specified set. Here’s a minimal example that checks whether sets s is a subset of t: Another minimal Harry Potter example: Syntax … Read more