Old problem back hunting me installing

[Blue Dog]

Hello
Been a long time, but been working hard to learn python.
I can solve most of my problems. I can't understand this one at all.
I have python 2.7.14 and python3.6.4 installed.
I am trying to install bs4 and requests on python 3.6.4,


See the try below

Output:
C:\Python36\Scripts>pip install beautifulsoup4 requests lxml
Requirement already satisfied: beautifulsoup4 in c:\python27\lib\site-packages (4.6.0)
Requirement already satisfied: requests in c:\python27\lib\site-packages (2.18.4)
Requirement already satisfied: lxml in c:\python27\lib\site-packages (4.2.1)
Requirement already satisfied: urllib3<1.23,>=1.21.1 in c:\python27\lib\site-packages (from requests) (1.22)
Requirement already satisfied: idna<2.7,>=2.5 in c:\python27\lib\site-packages (from requests) (2.6)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in c:\python27\lib\site-packages (from requests) (3.0.4)
Requirement already satisfied: certifi>=2017.4.17 in c:\python27\lib\site-packages (from requests) (2018.1.18)

Output:
C:\Python36\Scripts>pip install beautifulsoup4 requests lxml
Requirement already satisfied: beautifulsoup4 in c:\python27\lib\site-packages (4.6.0)
Requirement already satisfied: requests in c:\python27\lib\site-packages (2.18.4)
Requirement already satisfied: lxml in c:\python27\lib\site-packages (4.2.1)
Requirement already satisfied: urllib3<1.23,>=1.21.1 in c:\python27\lib\site-packages (from requests) (1.22)
Requirement already satisfied: idna<2.7,>=2.5 in c:\python27\lib\site-packages (from requests) (2.6)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in c:\python27\lib\site-packages (from requests) (3.0.4)
Requirement already satisfied: certifi>=2017.4.17 in c:\python27\lib\site-packages (from requests) (2018.1.18)

you can see I am in python3.6.4 dir. C:\Python36\Scripts>
when I use 'pip list' the same list come up and they all in 2.7.
I just can't get it to install python 3.6.4.
See their something new about python3.6.4?

Thank you
renny