GMSO Broken issue?

[CalCraven]

I merged in some of the most recent commits to try to finalize PR #492 and realized that I couldn't properly import gmso to check functionality. I cloned a fresh repo with the most recent commit 893534b, and see the same import error.

Code to reproduce error:

import gmso

Traceback (most recent call last):
File "", line 1, in
File "/Users/calcraven/Documents/Vanderbilt/Research/git_repos/gmso_check_import_error/gmso/gmso/init.py", line 1, in
from .core.topology import Topology
File "/Users/calcraven/Documents/Vanderbilt/Research/git_repos/gmso_check_import_error/gmso/gmso/core/topology.py", line 7, in
from gmso.core.atom import Atom
File "/Users/calcraven/Documents/Vanderbilt/Research/git_repos/gmso_check_import_error/gmso/gmso/core/atom.py", line 8, in
from gmso.core.element import Element
File "/Users/calcraven/Documents/Vanderbilt/Research/git_repos/gmso_check_import_error/gmso/gmso/core/element.py", line 301, in
elements_dict = {int(key): value for key, value in elements_dict.items()}
File "/Users/calcraven/Documents/Vanderbilt/Research/git_repos/gmso_check_import_error/gmso/gmso/core/element.py", line 301, in
elements_dict = {int(key): value for key, value in elements_dict.items()}

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It looks like the most recent changes to gmso that effect element.py come from #536. I might be getting something really wrong, but if there is an issue this is something that should be addressed asap.

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Version information:
python = 3.7
mbuild = 0.10.13
foyer = 0.7.6
gmso = 0.5.0.dev0

[CalCraven]

Seems like the change is in ele.
Version used :
ele = 0.1.0
Version needed:
ele = 0.2.0