(str|bytes).(r)find don't take kwargs

Feature or enhancement

Proposal:

'test'.find('e',end=3) # this currently just gives a "TypeError: str.find() takes no keyword arguments" same for the others
b'test2\x00garbage'.rfind(b'\0',start=4)

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

首先定位 str.find、str.rfind、bytes.find 和 bytes.rfind 的實作及測試。檢查它們的 start 和 end 參數目前如何處理，然後為與範例相符的關鍵字參數新增覆蓋；當這些呼叫能夠在不出現 TypeError 的情況下正常運作，且現有行為保持不變時，即表示完成。