Ben Chuanlong Du's Blog

It is never too late to learn.

Modules in Rust

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tips on PyPy

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Installation

  1. Download PyPy from https://www.pypy.org/download.html.

  2. Unzip it.

  3. Install pip.

    :::bash /path/to/pypy -m ensurepip /path/to/pypy -m pip install ...

Packages Failed to Install

pytype …

The Walrus Operator in Python 3.8

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

List Comprehension

Notice that a walrus expression in a list comprehension must be in included in parentheses (to avoid ambiguitions).

The try/except/finally Block in Python

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tips and Traps

  1. The finally statements are guaranteed to be executed (presuming no power outage or anything outside of Python's control) after a try/except block runs even if return, break