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Comments (7)

oroulet avatar oroulet commented on August 10, 2024

Hi,

This code was only written to 1) demonstrate that writing python wrapper is relatively easy 2) support using an open62541 server in opcua-modeler https://github.com/FreeOpcUa/opcua-modeler. So it only exposes two methods start_server() and stop_server() NOTHING else

so it is currently only interesting for someone with good knowledge of python/C/Cython and might be outdated. If you want to use python look at the native python opcua implementation.

but yes, a cd command is missing as well as a complete command line (add =ON for example). Feel free to fix that

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bvinodkumar2008 avatar bvinodkumar2008 commented on August 10, 2024

Thanks, will do so. I was able to successfully compile open62541 but while running the setup.py script here, running into the below issue:

command: python setup.py build_ext --inplace
running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I../open62541/build -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_types.h:19:0,
from ../open62541/include/ua_server.h:16,
from ../open62541/include/ua_plugin_network.h:12,
from open62541.c:640:
../open62541/build/src_generated/ua_config.h:92:29: fatal error: ua_architecture.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Can someone help me in addressing this? I was trying to see if i can write python wrappers for some of the C APIs just like the ones exposed under https://github.com/open62541/open62541-python/blob/master/open62541.pyx.

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bvinodkumar2008 avatar bvinodkumar2008 commented on August 10, 2024

Hello @oroulet,

Can you help me in getting the open62541 python module compiled? Thanks in advance...

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oroulet avatar oroulet commented on August 10, 2024

I updated README and could compile it. although I had to modify ../open62541/build/src_generated/ua_types_generated.h
@Pro it looks like the test at line 11 is wrong, I had to swicth else and then causes.....

@bvinodkumar2008 I used branch 0.3, there might be some changes in master... a patch is welcome for them

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bvinodkumar2008 avatar bvinodkumar2008 commented on August 10, 2024

Thanks @oroulet. I somehow missed your comment, will check with branch 0.3 today and let you know. Also, if it works for branch 0.3, will try to push a patch for master.

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bvinodkumar2008 avatar bvinodkumar2008 commented on August 10, 2024

Thanks @oroulet. I somehow missed your comment, will check with branch 0.3 today and let you know. Also, if it works for branch 0.3, will try to push a patch for master.

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bvinodkumar2008 avatar bvinodkumar2008 commented on August 10, 2024

Hi @oroulet ,
The git submodule udpate in the README.md step didn't work, i had to run git submodule update --init to get the submodules source code.

I still see the below error upon running python2.7 setup.py build_ext --inplace against branches 0.3 and tag 0.3-rc2 ( https://github.com/open62541/open62541):

running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_server.h:21:0,
from ../open62541/include/ua_plugin_network.h:16,
from open62541.c:641:
../open62541/build/src_generated/ua_types_generated.h:15:23: fatal error: open62541.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Observation on master branch ( https://github.com/open62541/open62541):**python setup.py build_ext --inplace**
Compiling open62541.pyx because it changed.
[1/1] Cythonizing open62541.pyx
/home/vkb1/.local/lib/python2.7/site-packages/Cython/Compiler/Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /home/vkb1/opcua_repos/open62541-python/open62541.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_types.h:19:0,
from ../open62541/include/ua_server.h:16,
from ../open62541/include/ua_plugin_network.h:12,
from open62541.c:639:
../open62541/build/src_generated/ua_config.h:92:29: fatal error: ua_architecture.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

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