Could not find a version that satisfies the requirement PIL
Python Imageing Library 簡稱 PIL Python常用的圖像處理庫之一 Pillow是PIL一個fork. 更換為: C:\Users\dangzh ...
原文：Could not find a version that satisfies the requirement flask
使用命令安裝flask，出現報錯 百度找到解決方法https: www.cnblogs.com lijinze tsinghua p .html 參考修改成pip install flask i http: pypi.douban.com simple trusted host pypi.douban.com就安裝成功了。 原文： pip安裝python包出錯：Could not find a v ...
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