Removing deprecated since Python 3.0 warning
Removing deprecated since Python 3.0 warning

Warning:
pyfirmata/pyfirmata.py:185: DeprecationWarning: inspect.getargspec() is deprecated since Python 3.0, use inspect.signature() or inspect.getfullargspec()

len_args = len(inspect.getargspec(func)[0])
tino/pyFirmata