The New REPL Command History Does Not Honor Partial Text

Bug report

Bug description:

Let's say I fire up the REPL and start with the following:

>>> spam = 1
>>> ham = 2
>>> eggs = 3
>>> sp

At that point, I can up-arrow to scroll through my REPL command history. Normally with that partial sp on the line, hitting up-arrow once will immediately present spam = 1. Hitting it again will do nothing (since there are no more matching lines).

With the new REPL, it presents eggs = 3. Hitting it again will present ham = 2, and again it presents spam = 1. I'd rather it keep doing what it did before.

CC @ambv, @pablogsal

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-121859

首先，在 Linux 上的 CPython main-branch REPL 中，使用報告中的 sp 範例重現部分輸入時的歷史記錄行為。將按向上箭頭得到的結果與預期的按前綴篩選歷史記錄的行為進行比較；當只顯示相符的歷史記錄項目並跳過不相關的項目時，問題即已解決。