donnemartin/data-science-ipython-notebooks

pandas - Working with Strings

Open

#60 建立於 2018年10月20日

在 GitHub 查看
 (3 留言) (0 反應) (0 負責人)Python (26,379 star) (7,706 fork)batch import
bughelp wanted

描述

In the code cell 3: data = ['peter', 'Paul', None, 'MARY', 'gUIDO'] data.map(lambda s: s.capitalize()) was changed to [s.capitalize() for s in data if s!= None ] and now the code woks fine.

貢獻者指南

技術棧
pythonpandas
領域
data
議題類型
bug
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。
2
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。
under 1 hour
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 basicspandas usage
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。
80
研究方向
The issue involves a specific code cell in a Jupyter notebook within the repository. The user reports that using `data.map(lambda s: s.capitalize())` on a list containing None causes an error, and suggests replacing it with a list comprehension that filters out None values. A contributor should locate the relevant notebook file (likely under the 'python/' or similar directory) and apply the fix. The change is straightforward and can be verified by running the cell. No new dependencies or complex changes are needed.