From bdb2cf8e913c041f26e8976abe58414819b3e8ff Mon Sep 17 00:00:00 2001 From: Terry Jan Reedy Date: Thu, 11 Aug 2022 16:54:03 -0400 Subject: [PATCH] gh-95841: IDLE - Revise Windows local doc url (#95845) #91242 replaced the Windows chm help file with a copy of the html docs. This PR replaces the IDLE code that fetches the Windows local help url passed to os.startfile. Co-authored-by: Steve Dower --- Lib/idlelib/editor.py | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/Lib/idlelib/editor.py b/Lib/idlelib/editor.py index 859a288b4bc..08d6aa2efde 100644 --- a/Lib/idlelib/editor.py +++ b/Lib/idlelib/editor.py @@ -86,10 +86,20 @@ class EditorWindow: dochome = os.path.join(basepath, pyver, 'Doc', 'index.html') elif sys.platform[:3] == 'win': - chmfile = os.path.join(sys.base_prefix, 'Doc', - 'Python%s.chm' % _sphinx_version()) - if os.path.isfile(chmfile): - dochome = chmfile + import winreg # Windows only, block only executed once. + docfile = '' + KEY = (rf"Software\Python\PythonCore\{sys.winver}" + r"\Help\Main Python Documentation") + try: + docfile = winreg.QueryValue(winreg.HKEY_CURRENT_USER, KEY) + except FileNotFoundError: + try: + docfile = winreg.QueryValue(winreg.HKEY_LOCAL_MACHINE, + KEY) + except FileNotFoundError: + pass + if os.path.isfile(docfile): + dochome = docfile elif sys.platform == 'darwin': # documentation may be stored inside a python framework dochome = os.path.join(sys.base_prefix,