Error: Package: patroni-1.6.5-1.rhel7.x86_64 (/patroni-1.6.5-1.rhel7.x86_64)
Requires: python3-psycopg2 >= 2.5.4
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest

[postgres@localhost lib]$ sudo pip3 install psycopg2==2.7.2
Collecting psycopg2==2.7.2
Downloading psycopg2-2.7.2-cp36-cp36m-manylinux1_x86_64.whl (2.7 MB)
|████████████████████████████████| 2.7 MB 1.1 MB/s
Installing collected packages: psycopg2
Attempting uninstall: psycopg2
Found existing installation: psycopg2 2.7.3
Uninstalling psycopg2-2.7.3:
Successfully uninstalled psycopg2-2.7.3
Successfully installed psycopg2-2.7.2

然后使用pip3安装后依然提示缺少psycopg2依赖，这是为什么呢？

刚学pg小白，还请各位大哥不吝赐教。感谢！