Fixed linting.

dscribe/descriptors/soap.py

@@ -202,7 +202,6 @@ def __init__(
  # Setup the involved chemical species
  self.species = species
 
-
  # Test that general settings are valid
  if sigma <= 0:
  raise ValueError(
@@ -228,7 +227,6 @@ def __init__(
  "one of the following: {}".format(average, supported_average)
  )
 
-
  if not (weighting or r_cut):
  raise ValueError("Either weighting or r_cut need to be defined")
  if weighting:
@@ -866,9 +864,7 @@ def compression(self, value):
  if mode not in supported_modes:
  raise ValueError(
  "Invalid compression mode '{}' given. Please use "
- "one of the following: {}".format(
- mode, supported_modes
- )
+ "one of the following: {}".format(mode, supported_modes)
  )
 
  # Check species weighting