importShape in importers.py was not returning anything.

cadquery/CQ.py

@@ -637,6 +637,14 @@ class CQ(object):
         """
         exporters.exportSVG(self,fileName)
 
+    def importStep(self,fileName):
+        """
+        Reads and imports a solid(s) from a STEP file
+
+        :param fileName: The location and name of the STEP file to load
+        """
+        importers.importStep(self, fileName)
+
     def rotateAboutCenter(self,axisEndPoint,angleDegrees):
         """
             Rotates all items on the stack by the specified angle, about the specified axis

cadquery/freecad_impl/importers.py

@@ -41,7 +41,7 @@ def importShape(importType,fileName):
 
 	#Check to see what type of file we're working with
 	if importType == ImportTypes.STEP:
-		importStep(fileName)
+		return importStep(fileName)
 
 #Loads a STEP file into a CQ object
 def importStep(fileName):
@@ -51,16 +51,12 @@ def importStep(fileName):
     """
 
     #Now read and return the shape
-	# try:
-	rshape = Part.read(fileName)
+	try:
+		rshape = Part.read(fileName)
 
-	r = Shape.cast(rshape)
-	#print "loadStep: " + str(r)
-	#print "Faces=%d" % cadquery.CQ(r).solids().size()
-	return cadquery.CQ(r)
-	# except:
-	# 	raise ValueError("STEP File Could not be loaded")
-
-if __name__ == '__main__':
-	import unittest
-	unittest.main()
+		r = Shape.cast(rshape)
+		#print "loadStep: " + str(r)
+		#print "Faces=%d" % cadquery.CQ(r).solids().size()
+		return cadquery.CQ(r)
+	except:
+		raise ValueError("STEP File Could not be loaded")

tests/TestImporters.py

@@ -35,6 +35,9 @@ class TestImporters(BaseTest):
 			# Reimport the shape from the new STEP file
 			importedShape = importers.importShape(importType,fileName)
 
+			#Check to make sure we got a shape back
+			if not importedShape.ShapeType:
+				raise TypeError("Wrong type imported from STEP file.")
 	def testSTEP(self):
 		"""
 		Tests STEP file import