[Distutils] Need how to install 3rd party python modules

[?? ??]

I would like to install openpyxl, and
I installed Python shown as follows:
Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:04:45) [MSC v.1900 32 bit (Intel)] on win32

But as the following situation shows, I cannot succeed installing openpyxl.

>>> pip install openpyxl
  File "<stdin>", line 1
    pip install openpyxl
              ^
SyntaxError: invalid syntax

How can I succeed installing openpyxl ?

Best Regards,
---------------------
Naoki Morihira
TEL: 01181-90-6460-6265
---------------------

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