pyphs run error

[pournamy]

my question here
I recently installed pyphs package in python.
When I run the script, it shows import error: No module named phs

# inductor
inductor = {'dictionary': 'electronics',
           'component': 'inductor',
           'label': 'myL',
           'nodes': ('A', 'B'),
           'arguments': {'L': ('L1', 5e-2)}}
phs.graph.netlist.add_line(inductor)