将python嵌入C++;
我对我的实现有点困惑。我有一个Python脚本嵌入到C++中。将python嵌入C++;,python,c++,python-c-api,Python,C++,Python C Api,我对我的实现有点困惑。我有一个Python脚本嵌入到C++中。 import urllib.request import ssl import suds.transport.http from suds.client import Client class UnverifiedHttpsTransport(suds.transport.http.HttpTransport): def __init__(self, *args, **kwargs): super(Unverifie
import urllib.request
import ssl
import suds.transport.http
from suds.client import Client
class UnverifiedHttpsTransport(suds.transport.http.HttpTransport):
def __init__(self, *args, **kwargs):
super(UnverifiedHttpsTransport, self).__init__(*args, **kwargs)
def u2handlers(self):
handlers = super(UnverifiedHttpsTransport, self).u2handlers()
context = ssl.create_default_context()
context.check_hostname = False
context.verify_mode = ssl.CERT_NONE
handlers.append(urllib.request.HTTPSHandler(context=context))
return handlers
url="https://xxxxxest.com/datamanagement.asmx?WSDL"
client = Client(url, transport=UnverifiedHttpsTransport())
def ReadDataTest():
result = client.service.ReadTestData()
return result
def ReadGridData():
result = client.service.ReadGridData()
return result
def main():
result=ReadGridData()
print(result)
if __name__ == "__main__":
main()
然后sample\u main.cpp
hasplugin lib
sample\u plugin.cpp
示例_plugin.cpp包含python嵌入代码,如下所示
Py_Initialize();
pName = PyUnicode_DecodeFSDefault("web_interface");
pModule = PyImport_Import(pName);
Py_DECREF(pName);
if (pModule != NULL) {
pFunc_readtest = PyObject_GetAttrString(pModule, "ReadDataTest");
if (pFunc_readtest && PyCallable_Check(pFunc_readtest)) {
pValue = PyObject_CallObject(pFunc_readtest, NULL);
if(pValue != NULL) {
printf("Result of call: %s\n", pValue);
Py_DECREF(pValue);
}
}
Py_XDECREF(pFunc_readtest);
Py_DECREF(pModule);
}else{
PyErr_Print();
printf("Can't call python \n");
}
Py_FinalizeEx();
当我运行sample_main.exe时,出现如下错误:
Traceback (most recent call last):
File "/opt/nvidia/deepstream/deepstream-5.0/sources/apps/sample_apps/deepstream-test3/web_interface.py", line 2, in <module>
import ssl
File "/usr/lib/python3.6/ssl.py", line 101, in <module>
import _ssl # if we can't import it, let the error propagate
ImportError: /usr/lib/python3.6/lib-dynload/_ssl.cpython-36m-aarch64-linux-gnu.so: undefined symbol: PyExc_OSError
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
from apport.fileutils import likely_packaged, get_recent_crashes
File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
from apport.report import Report
File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
import apport.fileutils
File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
from apport.packaging_impl import impl as packaging
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module>
import apt
File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
import apt_pkg
ImportError: /usr/lib/python3/dist-packages/apt_pkg.cpython-36m-aarch64-linux-gnu.so: undefined symbol: PyExc_ValueError
Original exception was:
Traceback (most recent call last):
File "/opt/nvidia/deepstream/deepstream-5.0/sources/apps/sample_apps/deepstream-test3/web_interface.py", line 2, in <module>
import ssl
File "/usr/lib/python3.6/ssl.py", line 101, in <module>
import _ssl # if we can't import it, let the error propagate
ImportError: /usr/lib/python3.6/lib-dynload/_ssl.cpython-36m-aarch64-linux-gnu.so: undefined symbol: PyExc_OSError
内存泄漏或任何其他问题
在嵌入Python的应用程序中,必须在使用任何其他Python/C API函数之前调用Py_Initialize()函数
文档的第一句话是“是”,我在上面显示的sample_plugin.cpp中称之为“是”。现在的问题是,我仍然需要在
sample\u maincpp
中再次调用,这意味着,对于像我这样的实现,Py\u Initialize();和Py_FinalizeEx();是的:如果你不打电话,其他人也不会打。你没有回答我的问题。为什么仅仅调用插件库还不够?为什么需要在main中而不是在lib中调用呢?在运行时,库代码的行为与“您的”代码并没有什么不同,所以它应该可以正常工作。但是,在此之前不能对Python进行其他调用。这就是为什么看到a会很好。有人能解释一下为什么需要包含Py\u Initialize()
-这就是文档的目的吗
sample_main.cpp