Change implementation to be callable only with

src/magicli.py

@@ -76,3 +76,17 @@ def print_help_and_exit(app_name, functions):
         words += ['--' + arg for arg in specs.args]
         print(' '*4 + ' '.join(words))
     exit()
+
+
+def first_calling_frame():
+    for s in reversed(inspect.stack()):
+        if s.code_context == None:
+            continue
+        if s.code_context[0].startswith('import magicli'):
+            return s.frame
+    return None
+
+
+frame = first_calling_frame()
+if frame != None:
+    magicli(glbls=frame.f_globals)