Conflict with collections.py module

[almeida85]

Hello,

When I run mdbenchmark generate -n benchmark_G4x --module gromacs/2020.1 --max-nodes 2 I get:

Traceback (most recent call last):
  File "/home/adi865j/.local/bin/mdbenchmark", line 5, in <module>
    from mdbenchmark import cli
  File "/home/adi865j/.local/lib/python2.7/site-packages/mdbenchmark/__init__.py", line 20, in <module>
    from mdbenchmark.cli import cli
  File "/home/adi865j/.local/lib/python2.7/site-packages/mdbenchmark/cli/__init__.py", line 20, in <module>
    from mdbenchmark.cli.commands import cli
  File "/home/adi865j/.local/lib/python2.7/site-packages/mdbenchmark/cli/commands.py", line 23, in <module>
    from mdbenchmark.cli.validators import (
  File "/home/adi865j/.local/lib/python2.7/site-packages/mdbenchmark/cli/validators.py", line 3, in <module>
    from mdbenchmark import console, utils
  File "/home/adi865j/.local/lib/python2.7/site-packages/mdbenchmark/utils.py", line 27, in <module>
    import datreant as dtr
  File "/home/adi865j/.local/lib/python2.7/site-packages/datreant/__init__.py", line 16, in <module>
    from .treants import Treant
  File "/home/adi865j/.local/lib/python2.7/site-packages/datreant/treants.py", line 9, in <module>
    from .collections import Bundle
  File "/home/adi865j/.local/lib/python2.7/site-packages/datreant/collections.py", line 11, in <module>
    from mycollections import defaultdict
ImportError: cannot import name defaultdict

It seems that it as a conflict with the native collections.py module. I tried to change the name to mycollections.py, but it didn't work.

Your version of MDBenchmark:
MDBenchmark version 2.0.1

Any thoughts?

Thanks in advance
-Yasser