Missing features: Cannot explore 3rd library file structure. In vscode, you can view them directly. Smooth scrolling is very important. When I started using nvim in a remote server, I immedi...

I am using Macbook with M1 chip. The day-to-day develop experience is similar to working on Linux, but there are quite a few gotchas. For example, gdb is not available, so I can only use lldb. The...

Function sounds simple, but its implementation is quite complicated inside cpython. There are functions in the global space, functions inside a class (i.e., method), class method, static method, an...

It is so hard to compile Linux kernel on my Macbook M1. Since I only need the compilation database, I decided to build it in a Linux box, and then copy the the file compile_commands.json out. cd ~...

RSS (Resident Set Size) Resident Set is the virtual memory that is actually living inside physical memory. It consists of three different categories: Anonymous memory pages, file memory pages and ...

How does import work in Python Below findings are based on Cpython version of 6066739ff7794e54c98c08b953a699cbc961cd28. Bootstrap This step generates two C files Python/frozen.c and Python/deepf...

Basic flow Entry point is src/pytest/__main__.py -> src/_pytest/config/__init__.py:main. Then it creates a Config object, which is a core concept in Pytest. Config initializes a plugin manager....

What is WSGI? Web Server Gateway Interface. Work flow blow client requests -> web server/gateway -> WSGI server -> Python web application/framework. Web server/gateway: NGINX, Apach...

PEP 3119 How does metaclass work? Read Python/bltinmodule.c#builtin___build_class__ You can see that the execute sequence is Class body code block runs, which populates the namespace ns o...

Sqlalchemy is huge. It has over 600k lines of code. concept: engine metadata: This provides abstract concepts of tabls, columns, constraints, foreign keys, etc. create_all api ...