Returns the index of the first occurrence of the specified substring. Minimal Example As you read over the explanations below, feel free to watch our video guide about this particular string method: Syntax and Explanation str.find(sub[, start[, end]]) Returns the index of the first occurrence of the specified substring. In particular, return the lowest index … Read more
Formats the string according to the Format Description Language. Minimal Example As you read over the explanations below, feel free to watch our video guide about this particular string method: Syntax and Explanation str.format(*args, **kwargs) Formats the string according to the Format Description Language. The string can contain normal text, enriched with so-called replacement fields … Read more
Formats the string according to the Format Description Language, passing a mapping object. Minimal Example As you read over the explanations below, feel free to watch our video guide about this particular string method: Syntax and Explanation str.format_map(mapping) Formats the string according to the Format Description Language, passing a mapping object. In that way, it … Read more
Returns the index of the first occurrence of the specified substring, like find() but it raises a ValueError if the substring is not found. Minimal Example As you read over the explanations below, feel free to watch our video guide about this particular string method: Syntax and Explanation str.index(sub[, start[, end]]) Returns the index of … Read more
Return a copy of the string with capitalized first character and lowercased remaining characters. Minimal Example As you read over the explanations below, feel free to watch our video guide about this particular string method: Syntax and Explanation str.capitalize() Creates a new string with capitalized first character, and lowercased remaining characters. Note that this function … Read more
Method Description capitalize() Return a copy of the string with capitalized first character and lowercased remaining characters. casefold() Return a lowercased, casefolded string similar to lowercase() but more aggressive. center() Return a centered string of a certain length, padded with whitespace or custom characters. count() Return the number of non-overlapping occurrences of a substring. encode() … Read more
Summary: This blog explains the various ways one can remove the prefix of a string in Python. How To Remove The Prefix Of A String In Python? Python 3.9 provides the removeprefix() method to aid string manipulation. The removeprefix() method of the Python String Object removes prefixes from any string. One needs to supply the … Read more
What is Celery? Celery allows you to scale your application by distributing processing workload among multiple worker machines or processes. Celery uses task queues as units of work. A dedicated worker process monitors those task queues and pulls new work from those if it becomes available. Clients add messages to the task queue and brokers … Read more
Believe it or not—how you answer this question in your day-to-day code reveals your true Python skill level to every master coder who reads your code. Beginner coders check if a list a is empty using crude statements like len(a)==0 or a==[]. While those solve the problem—they check if a list is empty—they are not … Read more
Method 1: Iterating over Consecutive (Sliding) Windows Given are: Python list lst Window size n Problem Formulation: How to loop through the list in consecutive element-windows of size n, so that in each iteration, you can access the n next elements in the list? # INPUT: lst = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘f’, ‘g’] … Read more
Download the cheat sheet here (direct PDF download): Have you ever asked yourself, “What does it mean to be a professional?” This article is about being a professional software developer. It is based on the book, Clean Code by Robert C. Martin. All quotations are from this book. While reading this article, you will learn … Read more
Python comes with many built-in functions you can use without importing a library. There are 64 of them. In this article, you’ll get an overview of the most important ones. For a full list of Python built-in functions, check out this resource. For a complete video tutorial course on Python’s built-in functions, check out this … Read more