![]() ![]() ![]() # the metaclass and the _annotations_ is necessaryĬlass SimpleExample(metaclass=module_context): Let's see some example of lazy evaluation in Python 3.7 (for a full executable example, see the full gist, or execute online). Actually, this syntax change was so unknown that I don't think most CPython core developers even knew about them either. Most people know Python as a language with eager evaluation semantic and you probably already know that Python 3 changes most built in iterators like map and filter to become lazy, but that's not what lazy, non-strict evaluation is about in functional programming context, and also not what we're talking about here.ĭid you know that Python 3.7 implemented a lazy, non-strict evaluation syntax behind a _future_ switch that is about to become enabled by default in 3.10 3.11? If you missed this major syntax change, then yeah, you are not alone, most people still haven't known about lazy evaluation yet despite Python 3.7 being released nearly 4 years ago. In consequence, arguments are not evaluated before they are passed to a function, but only when their values are actually used." One of the unique thing about functional programming languages like Haskell is lazy evaluation: "expressions are not evaluated when they are bound to variables, but their evaluation is deferred until their results are needed by other computations. What's with that clickbait-y title you say? Let me explain, you won't regret it. Introduction to Programming with Python (from Microsoft Virtual Academy). ![]() /r/git and /r/mercurial - don't forget to put your code in a repo!./r/pyladies (women developers who love python)./r/coolgithubprojects (filtered on Python projects)./r/pystats (python in statistical analysis and machine learning)./r/inventwithpython (for the books written by /u/AlSweigart)./r/pygame (a set of modules designed for writing games)./r/django (web framework for perfectionists with deadlines)./r/pythoncoding (strict moderation policy for 'programming only' articles).NumPy & SciPy (Scientific computing) & Pandas.Transcrypt (Hi res SVG using Python 3.6 and turtle module).Brython (Python 3 implementation for client-side web programming).PythonAnywhere (basic accounts are free).(Evolved from the language-agnostic parts of IPython, Python 3).The Python Challenge (solve each level through programming).Problem Solving with Algorithms and Data Structures.Invent Your Own Computer Games with Pythonįive life jackets to throw to the new coder (things to do after getting a handle on python) Please use the flair selector to choose your topic.Īdd 4 extra spaces before each line of code def fibonacci(): Reddit filters them out, so your post or comment will be lost. If you are about to ask a "how do I do this in python" question, please try r/learnpython, the Python discord, or the #python IRC channel on Libera.chat. North Bay Python, 29 July – 30 July 2023.News about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python Current Events ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |