pypa/pip

Speedup startup time

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#4,768 建立於 2017年10月5日

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 (46 留言) (3 反應) (0 負責人)Python (8,952 star) (3,032 fork)batch import
help wantedtype: enhancementtype: performance

描述

There's a lot to gain from speeding up pip's startup time.

For one, pip takes around 600ms to just print the completion text, which is laggy. (as mentioned in #4755). Further, faster startup time might help with the test-suite situation too.

貢獻者指南

技術棧
python
領域
cliperformance
議題類型
performance
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
3-5 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Python knowledgeFamiliarity with pip's codebaseProfiling tools (e.g., cProfile)
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
40
研究方向
Investigate pip's startup code to identify bottlenecks. The issue suggests that importing modules lazily could reduce startup time. Review comments in the issue for suggested approaches and try using profiling tools like cProfile. Consider implementing a simple optimization like deferring import of heavy modules.