Pip Could not find a version

[Fearless]

I'm new to Python and Pip. I'm trying to install the app "td-ameritrade-python-api". I get this response: Collecting td-ameritrade-python-api
Could not find a version that satisfies the requirement td-ameritrade-python-api (from versions: )
No matching distribution found for td-ameritrade-python-api

If I run "pip search "ameritrade" I get a list that contains: td-ameritrade-python-api (0.3.1) - A python client lirbary for the TD Ameritrade API.

Particulars:

Python version 3.5.3
Pip version pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.5)

What am I doing wrong?

[Gribouillis]

The pypi page of this module indicates that it requires at least Python 3.7. This is probably the cause of your problems.

[buran]

This library requires python >= 3.7 and yours is 3.5 (quite old, by the way, latest is 3.9).
You need to upgrade to newer python version if you want to use it

[Fearless]

Thanks guys! When I started this I had version 2.7.