pep fixes

tupak/gw/conversion.py

@@ -499,9 +499,11 @@ def generate_all_bbh_parameters(sample, likelihood=None, priors=None):
     output_sample = sample.copy()
     if likelihood is not None:
         output_sample['reference_frequency'] =\
-            likelihood.waveform_generator.waveform_arguments['reference_frequency']
+            likelihood.waveform_generator.waveform_arguments[
+                'reference_frequency']
         output_sample['waveform_approximant'] =\
-            likelihood.waveform_generator.waveform_arguments['waveform_approximant']
+            likelihood.waveform_generator.waveform_arguments[
+                'waveform_approximant']
 
     output_sample = fill_from_fixed_priors(output_sample, priors)
     output_sample, _ =\