There are 2 ways.

1. Format the Python code using black, which will automatically convert single quotes to double quotes when applicable. (Note that you can format the code again using yapf if you want the code to formatted by yapf finally.)

2. Use the tool myint/unify to help you.

Ways to Open a Command Palette

1. Use Menu Menu -> View -> Command Palette....
2. Use the shortcut Shift + Command + P (on macOS).

You can search for commands in the Command Palette, which makes things very convenient.

Run Tests or a Python File

1. Open the Command Palette.
2. Search for Python: Run in the …

Collections

1. Prefer std::deque to std::vector when the size of the collection is unknow.

2. Suppose set A and B are two set with the same type and set C is another set with the same value type but a different comparison function, then it is still valid to insert …