问如何使用python3安装selenium？

EN

....
creating /usr/local/lib/python2.7/dist-packages/selenium-3.4.3-py2.7.egg
Extracting selenium-3.4.3-py2.7.egg to /usr/local/lib/python2.7/dist-packages
Adding selenium 3.4.3 to easy-install.pth file

Installed /usr/local/lib/python2.7/dist-packages/selenium-3.4.3-py2.7.egg
.....

python functionalTest.py 

python3.6 functionalTest.py

ModuleNotFoundError: No module named 'selenium'

$ ls setup*
setup.cfg  setup.py
$ python3.6 setup install
python3.6: can't open file 'setup': [Errno 2] No such file or directory
$ python3.6 setup.py install
Traceback (most recent call last):
  File "setup.py", line 22, in <module>
    from setuptools import setup
ModuleNotFoundError: No module named 'setuptools'
.....
Original exception was:
Traceback (most recent call last):
  File "setup.py", line 22, in <module>
    from setuptools import setup
ModuleNotFoundError: No module named 'setuptools'
$ 

$ python3.6 setup.py install
.....
creating /usr/local/lib/python2.7/dist-packages/selenium-3.4.3-py2.7.egg
Extracting selenium-3.4.3-py2.7.egg to /usr/local/lib/python2.7/dist-packages
selenium 3.4.3 is already the active version in easy-install.pth

Installed /usr/local/lib/python2.7/dist-packages/selenium-3.4.3-py2.7.egg
Processing dependencies for selenium==3.4.3
Finished processing dependencies for selenium==3.4.3
$ cd /usr/local/lib/python
python2.7/ python3.5/ python3.6/ 
$ 
$ easy_install --version
setuptools 20.7.0 from /usr/lib/python2.7/dist-packages (Python 2.7)
$ pip --version
pip 8.1.1 from /usr/lib/python2.7/dist-packages (python 2.7)
$