more safeguards against not converted programs in the database

CHANGELOG

@@ -1,3 +1,6 @@
+2020-15-01 0.2.1
+Remove Nuitka as dependency. Build commands stay the same.
+
 2020-12-05 0.2.0
 Fix crash from Qt/PyQt regression with Qt 5.15.2
 Install nsm-data manpage

engine/findprograms.py

@@ -203,7 +203,7 @@ class SupportedProgramsDatabase(object):
     def _exeToDesktopEntry(self, exe:str)->dict:
         """Assumes self.desktopEntries is up to date
         Convert one exe (not full path!) to one dict entry. """
-        if exe in self.knownDesktopFiles: #Shortcut through internal database
+        if exe in self.knownDesktopFiles and type(self.knownDesktopFiles[exe]) is dict : #Shortcut through internal database
             entry = self.knownDesktopFiles[exe]
             return entry
         else: #Reverse Search desktop files.
@@ -211,7 +211,6 @@ class SupportedProgramsDatabase(object):
                 if "exec" in entry and exe.lower() in entry["exec"].lower():
                     return entry
             #else: #Foor loop ended. Did not find any matching desktop file
-
         return None
 
     def _build(self):
@@ -224,8 +223,7 @@ class SupportedProgramsDatabase(object):
         for exe, fullPath in self.executables:
             self.progressHook(f"{fullPath}")
             entry = self._exeToDesktopEntry(exe)
-            if entry: #Found match!
-                assert type(entry) is dict, type(entry)
+            if entry and type(entry) is dict: #Found match!
                 entry["agordejoFullPath"] = fullPath
                 #We don't want .desktop syntax like "qmidiarp %F"
                 entry["agordejoExec"] = exe
@@ -245,6 +243,9 @@ class SupportedProgramsDatabase(object):
                     leftovers.remove((exe,fullPath))
                 except KeyError:
                     pass #Double entries like zyn-jack zyn-alsa etc.
+            elif entry and not type(entry) is dict:
+                #There is a strange bug I can't reproduce. At least catch it.
+                logger.error(f"Wrong entry type: {type(entry)} for {entry}")
 
         for exe,fullPath in leftovers:
             pseudoEntry = {"name": exe.title(), "agordejoExec":exe, "agordejoFullPath":fullPath}