Add two new exceptions, AstroidImportError and AstroidSyntaxError.

They are subclasses of AstroidBuildingException and are raised when
a module can't be imported from various reasons.
Also do_import_module lets the errors to bubble up without converting
them to InferenceError. This particular conversion happens only
during the inference.

1 files changed, 10 insertions, 0 deletions

diff --git a/astroid/exceptions.py b/astroid/exceptions.py
index e92abc58..3437a1f9 100644
--- a/astroid/exceptions.py
+++ b/astroid/exceptions.py
@@ -54,6 +54,14 @@ class AstroidBuildingException(AstroidError):
         super(AstroidBuildingException, self).__init__(message, **kws)
 
 
+class AstroidImportError(AstroidBuildingException):
+    """Exception class used when a module can't be imported by astroid."""
+
+
+class AstroidSyntaxError(AstroidBuildingException):
+    """Exception class used when a module can't be parsed."""
+
+
 class NoDefault(AstroidError):
     """raised by function's `default_value` method when an argument has
     no default value
@@ -96,9 +104,11 @@ class MroError(ResolveError):
                               for m in self.mros)
         return self.message.format(mros=mro_names, cls=self.cls)
 
+
 class DuplicateBasesError(MroError):
     """Error raised when there are duplicate bases in the same class bases."""
 
+
 class InconsistentMroError(MroError):
     """Error raised when a class's MRO is inconsistent."""