从.NET消费Python的COM服务器 [英] Consuming Python COM Server from .NET
问题描述
我想用win32com扩展来实现的Python COM服务器。 然后从.NET中消耗服务器。 我用下面的例子来实现COM服务器,它运行没有问题,但是当我尝试使用它使用C#我FileNotFoundException异常,出现以下消息检索的组件的COM类工厂CLSID {676E38A6-7FA7-4BFF-9179 -AE959734DEBB}失败,原因是以下错误:8007007E 。我张贴的C#code作为well.I不知道如果我想的东西我会AP preciate任何帮助。
谢谢, 莎拉
#PythonCOMServer.py
进口pythoncom
类PythonUtilities:
_public_methods_ = ['SplitString']
_reg_progid_ =PythonDemos.Utilities
#切勿复制下面的ID
#使用打印pythoncom.CreateGuid(),以使一个新的。
_reg_clsid_ = pythoncom.CreateGuid()
打印_reg_clsid_
高清SplitString(个体经营,缬氨酸,项目=无):
进口字符串
如果项目=无:项目= STR(项目)
返回string.split(STR(VAL)项)
#添加code,这样当该脚本被运行
#Python.exe,。它自行注册。
如果__name __ =='__ main__:
打印注册COM服务器
进口win32com.server.register
win32com.server.register.UseCommandLine(PythonUtilities)
// C#的code
使用系统;
使用System.Collections.Generic;
使用System.Linq的;
使用System.Text;
使用的System.Reflection;
命名空间ConsoleApplication2
{
类节目
{
静态无效的主要(字串[] args)
{
键入pythonServer;
对象pythonObject;
pythonServer = Type.GetTypeFromProgID(PythonDemos.Utilities);
pythonObject = Activator.CreateInstance(pythonServer);
}
}
}
一个COM服务器只是一个软件(DLL或可执行文件),将接受远程过程调用(RPC)通过定义的协议。该协议的一部分说,服务器必须有一个唯一的ID,存储在Windows'注册表。 在我们的例子中,这意味着你有注册是不存在的服务器。因此,错误(组件未找到)。
所以,它应该是这样的(像往常一样,这是未经考验code!):
进口pythoncom
一流的HelloWorld:
_reg_clsctx_ = pythoncom.CLSCTX_LOCAL_SERVER
_reg_clsid_ ={B83DD222-7750-413D-A9AD-01B37021B24B}
_reg_desc_ =Python的测试COM服务器
_reg_progid_ =Python.TestServer
_public_methods_ = ['你好']
_public_attrs_ = ['softspace','noCalls']
_readonly_attrs_ = ['noCalls']
高清__init __(个体经营):
self.softspace = 1
self.noCalls = 0
高清你好(个体经营,谁):
self.noCalls = self.noCalls + 1
#插入softspace数量的空格
回归你好+,* self.softspace + STR(谁)
如果__name__ =='__main__':
如果在sys.argv中'--register'[1:]或sys.argv中'--unregister'[1:]:
进口win32com.server.register
win32com.server.register.UseCommandLine(的HelloWorld)
其他:
#启动服务器。
从win32com.server进口的LocalServer
localserver.serve('B83DD222-7750-413D-A9AD-01B37021B24B)
那你应该在命令行中运行(假设脚本被称为HelloWorldCOM.py):
HelloWorldCOM.py --register HelloWorldCOM.py
类的HelloWorld是服务器的实际实现。它公开一个方法(你好)和一对属性的,其中的两个是只读。 随着第一个命令,你注册服务器;与第二个,则运行它,然后将它变为可用从其他应用程序使用。
I wanted to implement python com server using win32com extensions. Then consume the server from within the .NET. I used the following example to implement the com server and it runs without a problem but when I try to consume it using C# I got FileNotFoundException with the following message "Retrieving the COM class factory for component with CLSID {676E38A6-7FA7-4BFF-9179-AE959734DEBB} failed due to the following error: 8007007e." . I posted the C# code as well.I wonder if I'm missing something I would appreciate any help.
Thanks, Sarah
#PythonCOMServer.py
import pythoncom
class PythonUtilities:
_public_methods_ = [ 'SplitString' ]
_reg_progid_ = "PythonDemos.Utilities"
# NEVER copy the following ID
# Use"print pythoncom.CreateGuid()" to make a new one.
_reg_clsid_ = pythoncom.CreateGuid()
print _reg_clsid_
def SplitString(self, val, item=None):
import string
if item != None: item = str(item)
return string.split(str(val), item)
# Add code so that when this script is run by
# Python.exe,.it self-registers.
if __name__=='__main__':
print 'Registering Com Server'
import win32com.server.register
win32com.server.register.UseCommandLine(PythonUtilities)
// the C# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
Type pythonServer;
object pythonObject;
pythonServer = Type.GetTypeFromProgID("PythonDemos.Utilities");
pythonObject = Activator.CreateInstance(pythonServer);
}
}
}
A COM server is just a piece of software (a DLL or an executable) that will accept remote procedure calls (RPC) through a defined protocol. Part of the protocol says that the server must have a unique ID, stored in the Windows' registry. In our case, this means that you have "registered" a server that is not existing. Thus the error (component not found).
So, it should be something like this (as usual, this is untested code!):
import pythoncom
class HelloWorld:
_reg_clsctx_ = pythoncom.CLSCTX_LOCAL_SERVER
_reg_clsid_ = "{B83DD222-7750-413D-A9AD-01B37021B24B}"
_reg_desc_ = "Python Test COM Server"
_reg_progid_ = "Python.TestServer"
_public_methods_ = ['Hello']
_public_attrs_ = ['softspace', 'noCalls']
_readonly_attrs_ = ['noCalls']
def __init__(self):
self.softspace = 1
self.noCalls = 0
def Hello(self, who):
self.noCalls = self.noCalls + 1
# insert "softspace" number of spaces
return "Hello" + " " * self.softspace + str(who)
if __name__ == '__main__':
if '--register' in sys.argv[1:] or '--unregister' in sys.argv[1:]:
import win32com.server.register
win32com.server.register.UseCommandLine(HelloWorld)
else:
# start the server.
from win32com.server import localserver
localserver.serve('B83DD222-7750-413D-A9AD-01B37021B24B')
Then you should run from the command line (assuming the script is called HelloWorldCOM.py):
HelloWorldCOM.py --register HelloWorldCOM.py
Class HelloWorld is the actual implementation of the server. It expose one method (Hello) and a couple of attributes, one of the two is read-only. With the first command, you register the server; with the second one, you run it and then it becomes available to usage from other applications.
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