我试的时候,CentOS默认有python2.7,我又安装了python3.6。使用python命令启动的是python2.7。...但是python2.7没有安装 pip , pip 是安装在 python3.6 下的。...启动 pip 用的是python3.6,如下:
$ pip -V
pip 18.1 from /usr/local/lib/python3.6/site-packages/pip-18.1-py3.6....MarkupSafe, jinja2, PyYAML, pycparser, cffi, six, pynacl, asn1crypto, idna, cryptography, bcrypt, pyasn1, paramiko...3.13 ansible-2.7.0 asn1crypto-0.24.0 bcrypt-3.1.4 cffi-1.11.5 cryptography-2.3.1 idna-2.7 jinja2-2.10 paramiko