[Python.NET] TypeError: No method matches given arguments for SetContext: (<class 'int'>)
Steven Manross <[email protected]> Thu, 14 Jul 2022 19:58:08 +0000
| Newsgroups | gmane.comp.python.dotnet |
|---|---|
| Message-ID | <[email protected]> |
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I got my initial code working on the C DLL and it's creating snapshot sets =
as I want. I am now having a problem with a function to query ALL the snap=
shots.
This value can be sent to SetContext()
In [39]: alphavsslib.VssSnapshotContext.All
Out[39]: 4294967295
4294967295 =3D 0xFFFFFFFF
A sample of the call is here:
https://github.com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13cb8467860e8=
be199d265963aa6ab8/src/SnapshotQuery/Program.cs
# this is the declaration of SetContext
virtual void SetContext(VssSnapshotContext context);
This is the declaration for All: VssSnapshotContext.All =3D 0xFFFFFFFF
https://github.com/alphaleonis/AlphaVSS/blob/13462e657f7993da5c80f835d219bb=
e82079ce75/src/AlphaVSS.Common/Enumerations/VssSnapshotContext.cs#L58
However, this line results in a Type error
In [40]: ctx =3D cmp.SetContext(alphavsslib.VssSnapshotContext.All)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Input In [40], in <cell line: 1>()
----> 1 ctx =3D cmp.SetContext(alphavsslib.VssSnapshotContext.All)
TypeError: No method matches given arguments for SetContext: (<class 'int'>=
)
I've tried converting the value using:
ctx =3D cmp.SetContext(System.Convert.ToUInt32(alphavsslib.VssSnapshotConte=
xt.All))
*And*
ctx =3D cmp.SetContext(ctypes.c_uint32(alphavsslib.VssSnapshotContext.All).=
value)
but the same error occurs
I can get the function to succeed (albeit it doesn't show me what I want) w=
ith this:
cmp.SetContext(ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value)
... because ctypes.c_int32(alphavsslib.VssSnapshotContext.All).value =3D -1
I believe it's possible that this could be related to the link below but I =
can't be sure because I am not a C developer and I can't determine how this=
was fix from the notes in the link.
Granted, the author is on CentOS, and I'm on Windows... but the backstory b=
ehind the issue sounds like it's related.
https://github.com/pythonnet/pythonnet/issues/950
I'm currently running on pythonnet 2.5.2 and
Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 =
bit (AMD64)] on win32
Any thoughts or suggestions would be greatly appreciated.
Steven
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">I got my initial code working on the C DLL and it=
217;s creating snapshot sets as I want. I am now having a problem wit=
h a function to query ALL the snapshots.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">This value can be sent to SetContext()<o:p></o:p></p=
>
<p class=3D"MsoNormal">In [39]: alphavsslib.VssSnapshotContext.All<o:p></o:=
p></p>
<p class=3D"MsoNormal">Out[39]: 4294967295<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">4294967295 =3D 0xFFFFFFFF<br>
<br>
<o:p></o:p></p>
<p class=3D"MsoNormal">A sample of the call is here:<br>
<a href=3D"https://github.com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13=
cb8467860e8be199d265963aa6ab8/src/SnapshotQuery/Program.cs">https://github.=
com/alphaleonis/AlphaVSS-Samples/blob/8482e83dd13cb8467860e8be199d265963aa6=
ab8/src/SnapshotQuery/Program.cs</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span class=3D"pl-k"><span style=3D"font-size:9.0pt;=
font-family:Consolas"># this is the declaration of SetContext<o:p></o:p></s=
pan></span></p>
<p class=3D"MsoNormal"><span class=3D"pl-k"><span style=3D"font-size:9.0pt;=
font-family:Consolas">virtual</span></span><span style=3D"font-size:9.0pt;f=
ont-family:Consolas;color:#24292F;background:#FFF8C5">
</span><span class=3D"pl-k"><span style=3D"font-size:9.0pt;font-family:Cons=
olas">void</span></span><span style=3D"font-size:9.0pt;font-family:Consolas=
;color:#24292F;background:#FFF8C5">
</span><span class=3D"pl-en"><span style=3D"font-size:9.0pt;font-family:Con=
solas">SetContext</span></span><span style=3D"font-size:9.0pt;font-family:C=
onsolas;color:#24292F;background:#FFF8C5">(VssSnapshotContext context);<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">This is the declaration for All: VssSnap=
shotContext.<span class=3D"pl-en"><span style=3D"font-size:9.0pt;font-famil=
y:Consolas">All</span></span><span style=3D"font-size:9.0pt;font-family:Con=
solas;color:#24292F;background:#FFF8C5">
</span><span class=3D"pl-k"><span style=3D"font-size:9.0pt;font-family:Cons=
olas">=3D</span></span><span style=3D"font-size:9.0pt;font-family:Consolas;=
color:#24292F;background:#FFF8C5">
</span><span class=3D"pl-c1"><span style=3D"font-size:9.0pt;font-family:Con=
solas">0xFFFFFFFF</span></span><o:p></o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://github.com/alphaleonis/AlphaVSS/b=
lob/13462e657f7993da5c80f835d219bbe82079ce75/src/AlphaVSS.Common/Enumeratio=
ns/VssSnapshotContext.cs#L58">https://github.com/alphaleonis/AlphaVSS/blob/=
13462e657f7993da5c80f835d219bbe82079ce75/src/AlphaVSS.Common/Enumerations/V=
ssSnapshotContext.cs#L58</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">However, this line results in a Type error <o:p></o:=
p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">In [40]: ctx =3D cmp.SetContext(alphavsslib.VssSnaps=
hotContext.All)<o:p></o:p></p>
<p class=3D"MsoNormal">----------------------------------------------------=
-----------------------<o:p></o:p></p>
<p class=3D"MsoNormal">TypeError &=
nbsp; &nbs=
p; =
Traceback (most recent call last)<o:p></o:p></p>
<p class=3D"MsoNormal">Input In [40], in <cell line: 1>()<o:p></o:p><=
/p>
<p class=3D"MsoNormal">----> 1 ctx =3D cmp.SetContext(alphavsslib.VssSna=
pshotContext.All)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">TypeError: No method matches given arguments for Set=
Context: (<class 'int'>)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span class=3D"pl-k"><span style=3D"font-size:9.0pt;=
font-family:Consolas"><o:p> </o:p></span></span></p>
<p class=3D"MsoNormal">I’ve tried converting the value using:<o:p></o=
:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">ctx =3D cmp.SetContext(System.Convert.ToUInt32(alpha=
vsslib.VssSnapshotContext.All))<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.25pt">*<b>And</b>*<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:2.25pt"><o:p></o:p></p>
<p class=3D"MsoNormal">ctx =3D cmp.SetContext(ctypes.c_uint32(alphavsslib.V=
ssSnapshotContext.All).value)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">but the same error occurs<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I can get the function to succeed (albeit it doesn&#=
8217;t show me what I want) with this:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:.5in">cmp.SetContext(ctypes.c_i=
nt32(alphavsslib.VssSnapshotContext.All).value)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">… because ctypes.c_int32(alphavsslib.VssSnapsh=
otContext.All).value =3D -1<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I believe it’s possible that this could be rel=
ated to the link below but I can’t be sure because I am not a C devel=
oper and I can’t determine how this was fix from the notes in the lin=
k.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Granted, the author is on CentOS, and I’m on W=
indows… but the backstory behind the issue sounds like it’s rel=
ated.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://github.com/pythonnet/pythonnet/is=
sues/950">https://github.com/pythonnet/pythonnet/issues/950</a><o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I’m currently running on pythonnet 2.5.2 and<o=
:p></o:p></p>
<p class=3D"MsoNormal">Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16=
:36:42) [MSC v.1929 64 bit (AMD64)] on win32<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Any thoughts or suggestions would be greatly appreci=
ated.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Steven<o:p></o:p></p>
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