I have been trying to run wasm code built with wasm-pack with pythonmonkey, a Mozilla SpiderMonkey JavaScript engine embedded into the Python Runtime. Consider a lib.rs as follow: 1use wasm_bindgen::prelude::*; 2 3#[wasm_bindgen] 4pub fn add(a: i32, b: i32) -> i32 { 5 return a + b; 6} With wasm-pack, we can build the …

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mesop is popular with AI apps, since is can be used to build web apps with Python without frontend works. mesop is developed upon the popular frontend framework flask. How about combine the natural abilities of flask while developing with mesop? Let do a little research. Access flask request instance(including headers, …

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Sometimes I want to create a partial model definition of a pydantic model. For example, if I want to expose a database model from API, some of the fields I would like to keep in secret, or I just want to expose very few fields in a summary API. I don't want to write model definition twice. I would like to write …

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MySQL Postgres list databases SHOW DATABASES \l change to a database USE <db_name> \c <db_name> list tables SHOW TABLES \dt describe a table DESC <table_name> \d <table_name> show the create table sql SHOW CREATE TABLE <table_name> pg_dump -st <table_name> <db_name> explain a query EXPLAIN <sql_statement> EXPLAIN …

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We can simply start the Next.js application using next start. However, when facing higher traffic demands in practical use, how can we deploy Next.js using a multi-process approach? We can achieve this using the cluster mode of pm2. The cluster mode is a powerful way of scaling Node.js applications, allowing you to …

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python -m http.server is a very convenient command line tool to start an ad-hoc static web server. This tool is very useful when you want to develop small web applications or serve static files. But it does not support SSL. A lot of modern web applications as well as browser features require a secured connection. So I …

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In Python, the contextvars is somehow like thread local, but mostly for coroutines. But will the context itself be kept consistent in a chain of asyncio tasks? Let's find out. contextvars Let's have a rough review of the contextvars in Python. The contextvars module provides a way to maintain a context across a chain …

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WSL is good, it will be even better if we can pipe stdout directly into Windows host’s clipboard. Just like 1 ./myscript.sh | to-my-clipboard.sh Note that xclip requires X, so it is not an option. From WSL, we have direct access to Windows executables. The easiest method would be using clip.exe: 1 ./myscript.sh | …

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After enrolled for Python in Excel preview, now I can type =py( in any Excel cell to write some Python code. Python in Excel doesn't have detailed documents, only Get Started tutorials, like link 1, link 2, or articles talking about topics like pandas, matplotlib, seaborn, etc., it may confuse you when you want to do …

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If haven't searched both "python" and "robots.txt" in the same input box, I would not ever know that Python Standard Library could parse robots.txt with urllib.robotparser. But the official document of urllib.robotparser doesn't go into detail. With the document, you could check whether a url can be fetch with a robot …

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