Address feedback, reformat, simplify, fix bugs and typo

Lib/fontTools/help/__main__.py

@@ -7,29 +7,26 @@ import fontTools
 import importlib
 
 
-def get_description(pkg):
-  try:
-    return __import__(pkg+".__main__",globals(),locals(),["__doc__"]).__doc__
-  except Exception as e:
-    return None
+def describe(pkg):
+    try:
+        description = __import__(
+            "fontTools." + pkg + ".__main__", globals(), locals(), ["__doc__"]
+        ).__doc__
+        print("fonttools %-10s %s" % (pkg, description), file=sys.stderr)
+    except Exception as e:
+        return None
+
 
 def show_help_list():
-  path = fontTools.__path__[0]
-  for pkg in find_packages(path):
-      qualifiedPkg = "fontTools."+pkg
-      description = get_description(qualifiedPkg)
-      if description:
-        print("fontools %-10s %s" % (pkg, description))
-        pkgpath = path + '/' + qualifiedPkg.replace('.', '/')
-        if (sys.version_info.major == 3 and sys.version_info.minor < 6):
-            for _, name, ispkg in iter_modules([pkgpath]):
-                if get_description(pkg+ '.' + name):
-                    modules.add(pkg + '.' + name)
-        else:
-            for info in iter_modules([pkgpath]):
-                if get_description(pkg+ '.' + info.name):
-                    modules.add(pkg + '.' + info.name)
+    path = fontTools.__path__[0]
+    for pkg in find_packages(path):
+        qualifiedPkg = "fontTools." + pkg
+        describe(pkg)
+        pkgpath = path + "/" + qualifiedPkg.replace(".", "/")
+        for info in iter_modules([pkgpath]):
+            describe(pkg + "." + info.name)
 
-if __name__ == '__main__':
-  print("fonttools v%s\n" % fontTools.__version__)
-  show_help_list()
+
+if __name__ == "__main__":
+    print("fonttools v%s\n" % fontTools.__version__, file=sys.stderr)
+    show_help_list()