[pywin32-bugs] [ pywin32-Bugs-1094803 ] postinstall failure: access denied to registry writes

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Bugs item #1094803, was opened at 2005-01-03 01:13
Message generated for change (Comment added) made by sirxyzzy
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Category: installation
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Kim Davies (kjd)
Assigned to: Nobody/Anonymous (nobody)
Summary: postinstall failure: access denied to registry writes

Initial Comment:
Installing pythonwin build 203 for Python 2.4 under 
Windows XP, I receive the following. 

The installation is nonfunctioning if I try and run it (i.e. 
pythonw.exe) at this point.

The user is an administrator, I can't think of any reason 
why the program would be administratively denied 
access to the registry.

This is what the install script gave:

Copied pythoncom24.dll to F:\WINDOWS\System32
\pythoncom24.dll
Copied pywintypes24.dll to F:\WINDOWS\System32
\pywintypes24.dll
Registered: Python.Interpreter 
Registered: Python.Dictionary 
Registered: Python 
Traceback (most recent call last):
  File "F:\Python24\Scripts\pywin32_postinstall.py", line 
358, in ?
    install()
  File "F:\Python24\Scripts\pywin32_postinstall.py", line 
231, in install
    SetPyKeyVal("Help", None, None)
  File "F:\Python24\Scripts\pywin32_postinstall.py", line 
103, in SetPyKeyVal
    _winreg.SetValueEx(my_key, value_name, 0, 
_winreg.REG_SZ, value)
WindowsError: [Errno 5] Access is denied
*** run_installscript: internal error 0xFFFFFFFF ***

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Comment By: Andy Philpotts (sirxyzzy)
Date: 2005-10-11 14:10

Message:
Logged In: YES 
user_id=1203071

The workround given above evades the symtom, but the help
files do not get registered (bad)

I can see why this happens, checking with regedit I see that
permission is indeed denied to the adminstrator (at least on
my machine) This seems to be specific to Python24, and is
possibly the result of a bug in some version of the Python24
install script. If I check the permissions in my registy for
Python24, SYSTEM has full control, but administrator has
only READ (my keys for Python23 had full control for
administrator). The failure ought to be caught and a
meaningful message displayed, or possibly the post install
script has to run as SYSTEM, although that sounds wrong

As a workround, I changed the permissions on the registry
key at the Python24 level (apply to all subkeys) and ran the
script again, all fixed up now.



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Comment By: Kim Davies (kjd)
Date: 2005-01-03 01:26

Message:
Logged In: YES 
user_id=168657

I note there is a comment in pywin32_postinstall.py that
probably explains it, and I just put an exception handler
around it, and it installed okay (presumably missing some
help functionality..)

New code fragment:

    # Register the .chm help file.
    chm_file = os.path.join(lib_dir, "PyWin32.chm")
    if os.path.isfile(chm_file):
        # This isn't recursive, so if 'Help' doesn't exist,
we croak
        try:
            SetPyKeyVal("Help", None, None)
            SetPyKeyVal("Help\Pythonwin Reference", None,
chm_file)
        except:
            pass
    else:
        print "NOTE: PyWin32.chm can not be located, so has
not "               "been registered"

----------------------------------------------------------------------

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