try to solve encoding problem for Python 2
@@ -77,10 +77,7 @@ class Coaxial( DistributedCircuit,Media ):
def from_attenuation_VF(cls, frequency=None, z0=None, Z0=50,
att=0, unit='dB/m', VF=1):
"""
- Init from electrical properties of the line: attenuation and velocity factor
- Attenuation can be expressed in dB/m, dB/100m, dB/ft, dB/100ft, Neper/m or Neper/ft.
- Default unit is dB/m. A different unit is set by the `unit` parameter
Parameters
----------
