steem modual install for you ?
I have installed python 3.6
I get this:

Using cached steem-0.18.103.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "string", line 1, in module
File "/tmp/pip-build-p7hg6puo/steem/setup.py", line 10, in module
assert sys.version_info[0] == package_meta.required_python_major and sys.version_info[1] >= package_meta.required_python_minor, "%s requires Python %s or newer" % (package_meta.package_name, package_meta.required_python_ver)
AssertionError: steem requires Python 3.6 or newer

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-p7hg6puo/steem/