AWS Cloud9環境において、pythonにccxtインストールしようとしてエラー発生

Question

AWS Cloud9環境において、pythonでccxtモジュールを使おうと
インストールを試みましたがエラーとなります。
対応方法についてアドバイス頂けると助かります。

【経緯】
sudo pip-3.6 install ccxt を実行
↓
以下エラーが発生

You are using pip version 9.0.1, however version 9.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

↓
sudo pip-3.6 install --upgrade pip を実行
以下メッセージが出てupgradeに成功

Collecting pip
Using cached pip-9.0.2-py2.py3-none-any.whl
Installing collected packages: pip
Found existing installation: pip 9.0.1
Uninstalling pip-9.0.1:
Successfully uninstalled pip-9.0.1
Successfully installed pip-9.0.2

↓
sudo pip-3.6 install ccxt
を再度実行したところ以下エラーが発生

Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 666, in _build_master
ws.require(requires)
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 984, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 875, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.VersionConflict: (pip 9.0.2 (/usr/local/lib/python3.6/site-packages), Requirement.parse('pip==9.0.1'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/bin/pip-3.6", line 6, in <module>
from pkg_resources import load_entry_point
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 3147, in <module>
@_call_aside
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 3131, in _call_aside
f(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 3160, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 668, in _build_master
return cls._build_from_requirements(requires)
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 681, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/local/lib/python3.6/site-packages/pkg_resources/init.py", line 870, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==9.0.1' distribution was not found and is required by the application

9.0.2が必要と言われて、upgradeしたところ
今度は9.0.1が無い・・・というエラーが出ているのかと思っています。
ちょっと、どうしたものやら・・・と。
アドバイス頂けると助かります。