============================= test session starts ============================== platform linux2 -- Python 2.7.15+, pytest-3.3.2, py-1.5.2, pluggy-0.6.0 rootdir: /home/daniel/nanotext, inifile: collected 0 items / 1 errors ==================================== ERRORS ==================================== ________________ ERROR collecting nanotext/tests/test_utils.py _________________ ImportError while importing test module '/home/daniel/nanotext/nanotext/tests/test_utils.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: tests/test_utils.py:3: in from pybedtools import BedTool E ImportError: No module named pybedtools !!!!!!!!!!!!!!!!!!! Interrupted: 1 errors during collection !!!!!!!!!!!!!!!!!!!! =========================== 1 error in 0.26 seconds ============================