Fixed post processor loading.

src/Mod/Path/PathScripts/PathPostProcessor.py

@@ -23,8 +23,13 @@
 # ***************************************************************************
 
 import FreeCAD
+import PathScripts.PathLog as PathLog
+import sys
+
 from PathScripts.PathPreferences import PathPreferences
 
+PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
+
 class PostProcessor:
 
     @classmethod
@@ -33,11 +38,17 @@ class PostProcessor:
 
     @classmethod
     def load(cls, processor):
+        PathLog.track(processor)
+        syspath = sys.path
+        paths = PathPreferences.searchPaths()
+        paths.extend(sys.path)
+        sys.path = paths
+
         postname = processor + "_post"
         namespace = {}
         
         #can't modify function local scope with exec in python3
-        exec("from PathScripts import %s as current_post" % postname, namespace)
+        exec("import %s as current_post" % postname, namespace)
         current_post = namespace['current_post']
         
         # make sure the script is reloaded if it was previously loaded
@@ -52,6 +63,8 @@ class PostProcessor:
             from importlib import reload
             exec("reload(%s)" % 'current_post')
 
+        sys.path = syspath
+
         instance = PostProcessor(current_post)
         instance.units = None
         if hasattr(current_post, "UNITS"):

src/Mod/Path/PathScripts/PathPreferences.py

@@ -53,12 +53,10 @@ class PathPreferences:
 
     @classmethod
     def allAvailablePostProcessors(cls):
-        posts = glob.glob(cls.pathScriptsSourcePath() + '/*_post.py')
-        allposts = [ str(os.path.split(os.path.splitext(p)[0])[1][:-5]) for p in posts]
-
-        posts = glob.glob(cls.macroFilePath() + '/*_post.py')
-
-        allposts.extend([ str(os.path.split(os.path.splitext(p)[0])[1][:-5]) for p in posts])
+        allposts = []
+        for path in cls.searchPaths():
+            posts = [ str(os.path.split(os.path.splitext(p)[0])[1][:-5]) for p in glob.glob(path + '/*_post.py')]
+            allposts.extend(posts)
         allposts.sort()
         return allposts