Nicer TypeErrors

Author: Daniel Neuhäuser

CHANGELOG.rst

@@ -5,6 +5,7 @@ Version 0.2.1
 =============
 
 - Fix issue with named groups.
+- Nicer `TypeError`\s, if pattern types are unequal.
 
 Version 0.2.0
 =============

oore.py

@@ -57,8 +57,8 @@ def __add__(self, other):
         if isinstance(other, r):
             if self.pattern.__class__ != other.pattern.__class__:
                 raise TypeError(
-                    'incompatible pattern types: {} and {}'.format(
-                        self.pattern.__class__, other.pattern.__class__
+                    'incompatible pattern types: {!r} and {!r}'.format(
+                        self.pattern, other.pattern
                     )
                 )
             elif isinstance(self.pattern, bytes):
@@ -76,9 +76,9 @@ def __or__(self, other):
         if isinstance(other, r):
             if self.pattern.__class__ != other.pattern.__class__:
                 raise TypeError(
-                    'incompatible pattern types: {} and {}'.format(
-                        self.pattern.__class__,
-                        other.pattern.__class__
+                    'incompatible pattern types: {!r} and {!r}'.format(
+                        self.pattern,
+                        other.pattern
                     )
                 )
             elif isinstance(self.pattern, bytes):