- minor changes to increase compatibility with Python 3.8

flatcamParsers/ParseExcellon.py

@@ -967,7 +967,7 @@ class Excellon(Geometry):
 
             for drill in self.drills:
                 # poly = drill['point'].buffer(self.tools[drill['tool']]["C"]/2.0)
-                if drill['tool'] is '':
+                if drill['tool'] == '':
                     self.app.inform.emit('[WARNING] %s' %
                                          _("Excellon.create_geometry() -> a drill location was skipped "
                                            "due of not having a tool associated.\n"

flatcamParsers/ParseGerber.py

@@ -718,7 +718,7 @@ class Gerber(Geometry):
                     # so it can be processed by FlatCAM.
                     # But first test to see if the aperture type is "aperture macro". In that case
                     # we should not test for "size" key as it does not exist in this case.
-                    if self.apertures[current_aperture]["type"] is not "AM":
+                    if self.apertures[current_aperture]["type"] != "AM":
                         if self.apertures[current_aperture]["size"] == 0:
                             self.apertures[current_aperture]["size"] = 1e-12
                     # log.debug(self.apertures[current_aperture])