Wechseln Sie von Python2.7 zu Python3.6 (centos7)

# cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)

# yum install -y https://centos7.iuscommunity.org/ius-release.rpm
# yum search python36
# yum install -y python36u python36u-libs python36u-devel python36u-pip

Symbolischer Linkersatz
# ls -l /bin/py*
# ln -s /bin/python3.6 /bin/python3
# unlink /bin/python
# ln -s /bin/python3.6 /bin/python
# vim $(which pip)
Die erste Zeile#!/usr/bin/python2   →　#!/usr/bin/python
# pip --version
pip 9.0.1 from /usr/lib/python3.6/site-packages (python 3.6)

# vim $(which aws)
Die erste Zeile#!/usr/bin/python2   →　#!/usr/bin/python

# aws s3 ls
Traceback (most recent call last):
  File "/bin/aws", line 19, in <module>
    import awscli.clidriver
ModuleNotFoundError: No module named 'awscli'

# sudo pip install awscli

# yum
  File "/bin/yum", line 30
    except KeyboardInterrupt, e:
                            ^
SyntaxError: invalid syntax

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