From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Fri, 25 Jul 2014 05:56:24 +0000 (-0400)
Subject: Issue #22053: Make help work, after previous patch for this issue disabled it
X-Git-Tag: v3.4.2rc1~190^2~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=280aace067e7df3b706c09e27b044dfea3bacaff;p=python

Issue #22053: Make help work, after previous patch for this issue disabled it
by removing global 'demo'. Refactor and remove duplicate code.
---

diff --git a/Lib/turtledemo/__main__.py b/Lib/turtledemo/__main__.py
index 0c151a3583..92b6186ddf 100755
--- a/Lib/turtledemo/__main__.py
+++ b/Lib/turtledemo/__main__.py
@@ -27,17 +27,11 @@ def getExampleEntries():
     return [entry[:-3] for entry in os.listdir(demo_dir) if
             entry.endswith(".py") and entry[0] != '_']
 
-def showDemoHelp():
-    view_file(demo.root, "Help on turtleDemo",
-              os.path.join(demo_dir, "demohelp.txt"))
-
-def showAboutDemo():
-    view_file(demo.root, "About turtleDemo",
-              os.path.join(demo_dir, "about_turtledemo.txt"))
-
-def showAboutTurtle():
-    view_file(demo.root, "About the new turtle module.",
-              os.path.join(demo_dir, "about_turtle.txt"))
+help_entries = (  # (help_label,  help_file)
+    ('Turtledemo help', "demohelp.txt"),
+    ('About turtledemo', "about_turtledemo.txt"),
+    ('About turtle module', "about_turtle.txt"),
+    )
 
 class DemoWindow(object):
 
@@ -177,12 +171,10 @@ class DemoWindow(object):
         CmdBtn.pack(side=LEFT, padx='2m')
         CmdBtn.menu = Menu(CmdBtn)
 
-        CmdBtn.menu.add_command(label='About turtle.py', font=menufont,
-                                command=showAboutTurtle)
-        CmdBtn.menu.add_command(label='turtleDemo - Help', font=menufont,
-                                command=showDemoHelp)
-        CmdBtn.menu.add_command(label='About turtleDemo', font=menufont,
-                                command=showAboutDemo)
+        for help_label, help_file in help_entries:
+            def show(help_label=help_label, help_file=help_file):
+                view_file(self.root, help_label, os.path.join(demo_dir, help_file))
+            CmdBtn.menu.add_command(label=help_label, font=menufont, command=show)
 
         CmdBtn['menu'] = CmdBtn.menu
         return CmdBtn