Ben Chuanlong Du's Blog

And let it direct your passion with reason.

Hands on dict in Python

Tips and Traps

  1. Starting from Python 3.7, dict preserves insertion order (i.e., dict is ordered). There is no need to use OrderedDict any more in Python 3.7+. However, set in Python is implemented as an unordered hashset and thus is neither ordered nor sorted. A trick to dedup an iterable values

Map Keys in Linux

Note: For Vim users, it is appealing to make the Caps Lock function like Escape. It is suggested that you make Caps Lock an additonal Escape rather than swap them. This avoid inconsistent key mapping issues when you work remotely via VNC, NoMachine, etc.

Desktop Environment

Some desktop environment (e …

Map Keys in macOS

Update: As of MacOS Sierra 10.12.1, the remapping of Caps Lock to Escape can be done natively in the Keyboard System Preferences pane. Follow the steps below to remap Caps Lock to Escape (without relying on 3rd party software).

  1. Open System Preferences and click on Keyboard
  2. Click on …

Map Keys in Windows

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

If you are a heavy Vim user and you have work on Windows, it is suggested that you Swap the Caps Lock key with the Escape key. The swaped key mapping …