[IronPython] Disappointed

Thomas Heller theller at ctypes.org
Thu Dec 17 01:13:14 PST 2009


I was excited to see that the latest IronPython release contains ctypes, so I was
tempted to try it out.  This is the first time I use IronPython.

However, soon came frustration.

ctypes.wintypes is missing, copying the Python 2.6 ctypes\wintypes.py into place
doesn't make it work either:

c:\>ipy -c "import ctypes.wintypes"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "c:\Programme\IronPython 2.6\Lib\ctypes\wintypes.py", line 23, in c:\Programme\IronPython 2.6\Lib\ctypes\wintypes.py
NotImplementedError: simple type v
c:\>

The same NotImplementedError is raised when I try to import comtypes, which uses this code:

class BSTR(_SimpleCData):
    "The windows BSTR data type"
    _type_ = "X"
    ...

Ok.  Gave up trying out ctypes.  Tried to run other scripts that I have written.  Snippet from that:

"""
import _winreg

def QueryValue(hkey, valuename, default=0):
    if hkey is None:
        return default
    try:
        return _winreg.QueryValue(hkey, valuename)
    except WindowsError, detail:
        if detail.errno == 2:
            return default
        raise
"""

Doesn't work either.  WindowsError is raised, but detail.errno is None,
detail.winerror also.


Is there any chance of running a working, nontrivial CPython program with
IronPython?

Are the above problems oversights? Missing features?

-- 
Thanks,
Thomas


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