def TestCharArray():
from System import Array
charArrType = Array[Char]
##arrType = charArrType('hello')
##for char in arrType:
## print char,
## Also works on instances of the type! ##
strCharArr = s.__overloads__[charArrType]
s = strCharArr(list('hello'))
print s
On 5/16/2011 6:29 PM, Adrian Perez wrote:
Hello everyone,
This is probably a total n00b question, but I've been using pythonnet in our
toolchain to communicate with a private c# assembly for months now without ever
running into a problem I couldn't eventually figure out. This one has me
totally stumped, and I'm hoping something obvious will jump out at experienced
eyes.
(I did a find/replace for secrecy, besides silly names these are the raw
results I get back)
A C# class exposes a method 'WriteByte' that has 5 overloads (note that only
one of them takes 2 arguments):
accessor= MyCompany.SomeNamespace.SomeTypeArrayAccessor
accessor.WriteByte.__overloads__
Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Byte[])
Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Byte[], Int32 ByRef)
Boolean WriteByte(MyCompany.SomeNamespace.SomeType,
System.Collections.Generic.IEnumerable`1[System.Byte], Int32 ByRef)
Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Int32,
System.Collections.Generic.IEnumerable`1[System.Byte], Int32 ByRef)
Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Int32, Byte[], Int32 ByRef)
I attempt to disambiguate by selecting the 2-arg method I want by type:
desired_method=
accessor.WriteByte.__overloads__[MyCompany.SomeNamespace.SomeType,
System.Array[System.Byte]]
The problem may be right here - if I print out desired_method.__doc__ I get the
same 5 methods listed above. Anyway, then I compute my arguments, and can
verify they have the types I expect (If it matters, arg_b is created by a call
to System.IO.BinaryReader.ReadBytes()):
arg_a= ...
arg_b= ...
type(arg_a)
<class 'MyCompany.SomeNamespace.SomeType'>
type(arg_b)
<class 'System.Byte[]'>
However, when I try to call the disambiguated method with the correct args, I
get no love:
result= desired_method(arg_a, arg_b)
Traceback (most recent call last):
File "<string>", line 1, in<fragment>
TypeError: No method matches given arguments
Does anyone see the obvious thing I'm doing wrong? Disambiguating can be a
pain but I've done it before for other methods and have never had such an
impossible time getting the correct method called.
Thanks,
Adrian Perez
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