ExceptionTrap now presents .type, .value, and .tb attributes, matchin…

…g those found in a pytest ExceptionInfo.

CHANGES.rst

@@ -3,6 +3,8 @@
 
 * Dropped support for Python 3.3.
 * Refreshed project metadata using declarative config.
+* ``ExceptionTrap`` now presents ``type``, ``value``,
+  and ``tb`` attributes.
 
 1.7
 ===

jaraco/context.py

@@ -277,14 +277,27 @@ def __init__(self, exceptions=(Exception,)):
 	def __enter__(self):
 		return self
 
-	def __exit__(self, exc_type, exc_val, traceback):
-		matches = exc_type and issubclass(exc_type, self.exceptions)
+	@property
+	def type(self):
+		return self.exc_info[0]
+
+	@property
+	def value(self):
+		return self.exc_info[1]
+
+	@property
+	def tb(self):
+		return self.exc_info[2]
+
+	def __exit__(self, *exc_info):
+		type = exc_info[0]
+		matches = type and issubclass(type, self.exceptions)
 		if matches:
-			self.exc_info = exc_type, exc_val, traceback
+			self.exc_info = exc_info
 		return matches
 
 	def __bool__(self):
-		return bool(self.exc_info[0])
+		return bool(self.type)
 	__nonzero__ = __bool__