pep8 compliance

Author: echedey-ls

pvlib/modelchain.py

@@ -253,7 +253,7 @@ def __repr__(self):
         def _head(obj):
             try:
                 return obj[:3]
-            except:
+            except Exception:
                 return obj
 
         if type(self.dc) is tuple:
@@ -269,7 +269,7 @@ def _head(obj):
                  '\n')
         lines = []
         for attr in mc_attrs:
-            if not (attr.startswith('_') or attr=='times'):
+            if not (attr.startswith('_') or attr == 'times'):
                 lines.append(f' {attr}: ' + _mcr_repr(getattr(self, attr)))
         desc4 = '\n'.join(lines)
         return (desc1 + desc2 + desc3 + desc4)
@@ -392,7 +392,6 @@ def __init__(self, system, location,
 
         self.results = ModelChainResult()
 
-
     @classmethod
     def with_pvwatts(cls, system, location,
                      clearsky_model='ineichen',