pip 安装 psycopg2 安装及错误处理
错误及现象 Error: pg_config executable not found. Downloading/unpacking psycopg2 Downloading psycopg2-2.5.4.tar.gz (682kB): 682kB downloaded Running ...
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pg_config executable not found
Error: pg_config executable not found. Please add the directory containing pg_config to the PATH or specify the full executable path ...