python pyqt5安裝失敗問題

之前裝命令都是pip一條命令搞定，會自動安裝依賴的庫，但在安裝pyqt5時卻遇到了問題python 在下載完pyqt5時，會提示找不到合適的SIP版本ui   Could not find a version that satisfies the requirement sip>=4.19 (from pyqt5) (from versions: ) No matching distributio

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