[Python] Import statement works on PyCharm but not from terminal

PyCharm 2016.2.3, Mac OS X 10.11.1, Python 3.5 (Homebrew);

I have this folder structure

project
/somepackage
/subpackage
__init__.py
bar.py
__init__.py
foo.py


foo.py:

import somepackage.subpackage.bar
print("foo")


bar.py:

print("bar")


So my expected output is

bar
foo


This works fine when run from PyCharm. However, when I run it from my terminal I get an ImportError:

$ pwd
$ /home/project (not the actual path; just omitting some personal stuff)
$ python3.5 somepackage/foo.py
File "foo.py", line 1, in <module>
import somepackage.subpackage.bar
ImportError: No module named 'somepackage'


I have found this question, which is about the same problem. However, none of the suggested solutions work for me, as I am indeed using the same Python interpreter as PyCharm does and I am currently in the folder that contains the /somepackage folder.

Does anyone have any other suggestions about how to solve this issue?

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