1C DLL through Python

# -*-coding:utf8-*-

import win32com.client
import ctypes
import os
class GtAlgoWrapper():
    # com spec
    _public_methods_ = ['solve','resultCallback', 'progressCallback',]
    _public_attrs_ = ['version',]
    _readonly_attr_ = []

    _reg_clsid_ = '{2234314F-F3F1-2341-5BA9-5FD1E58F1526}'
    _reg_progid_= 'GtAlgoWrapper'
    _reg_desc_  = 'COM Wrapper For GTAlgo'
    _dependencies = ['libwinpthread-1.dll',
                     'libgcc_s_dw2-1.dll',
                     'libstdc++-6.dll',
                     'libcrypto-1_1.dll',
                     'libssl-1_1.dll',
                     'Qt5Core.dll',
                     'Qt5Cored.dll',
                     'Qt5Gui.dll',
                     'Qt5Guid.dll',
                     'libcurl.dll',
                     'GtTools0-0-1.dll',
                     'GtRouting0-0-1.dll']
    def __init__(self):
        self.version = '0.0.1'
        self.progressOuterCb = None
        self.resultOuterCb = None

    def solve(self, data):
        prefix_path = 'C:/release'
        try:
            for dep in self._dependencies:
                ctypes.cdll.LoadLibrary(os.path.join(prefix_path, dep))
            lib = ctypes.cdll.LoadLibrary(os.path.join(prefix_path, 'GtAlgo0-0-1.dll'))
        except WindowsError:
            raise Exception('cant load' + dep)

        solve_func = getattr(lib, '_ZN6GtAlgo5solveEPKcPFviS1_ES3_')
        StatusCallback = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
        ResultCallback = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
        _scb_func = StatusCallback(self._libProgressCb)
        _rcb_func = ResultCallback(self._libResultCb)
        if self.resultOuterCb is None:
            raise Exception('resultCallback function is not Set')
        if self.progressOuterCb is None:
            raise Exception('progressCallback function is not Set')

        solve_func(ctypes.c_char_p(data), _scb_func, _rcb_func)

        return 'DONE'

    def _libProgressCb(self, *args):
        self.progressOuterCb(*args)

    def _libResultCb(self, *args):
        self.resultOuterCb(*args)

    def _callbackSetter(self, obj, outerCbName):
        if str(type(obj)) == "<type 'PyIDispatch'>":
            com_obj = win32com.client.Dispatch(obj)
            try:
                return getattr(com_obj, outerCbName)
            except AttributeError:
                raise Exception('"'+outerCbName + '" not found in "This"')
        else:
            raise Exception('"This" is necessary parameter')

    def resultCallback(self, obj):
        self.resultOuterCb = self._callbackSetter(obj, 'resultCallback')
        return obj

    def progressCallback(self, obj):
        self.progressOuterCb = self._callbackSetter(obj, 'progressCallback')
        return obj

def main():
    import win32com.server.register
    win32com.server.register.UseCommandLine(GtAlgoWrapper)
    print('registred')

if __name__ == '__main__':
    main()