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embed a python function into my Qt App.

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  • jsulmJ jsulm

    @vinaygopal This is not linker error but compiler.
    Try to include the header like this:

    extern "C"
    {
      #include <Python.h>
    }
    
    V Offline
    V Offline
    vinaygopal
    wrote on last edited by
    #11

    @jsulm I tried it and i got the same set of errors however when i tried with the right click and add library method i get this following error

    :-1: error: No rule to make target 'C:/Users/vinay/Documents/first_qml_training/example_project/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37d.a', needed by 'debug/example_project.exe'.  Stop.
    
    jsulmJ 1 Reply Last reply
    0
    • V vinaygopal

      @jsulm I tried it and i got the same set of errors however when i tried with the right click and add library method i get this following error

      :-1: error: No rule to make target 'C:/Users/vinay/Documents/first_qml_training/example_project/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37d.a', needed by 'debug/example_project.exe'.  Stop.
      
      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #12

      @vinaygopal Can you show your pro file?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      V 1 Reply Last reply
      1
      • jsulmJ jsulm

        @vinaygopal Can you show your pro file?

        V Offline
        V Offline
        vinaygopal
        wrote on last edited by
        #13

        @jsulm

        QT       += core gui networkauth
        
        greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
        
        TARGET = example_project
        TEMPLATE = app
        
        
        # The following define makes your compiler emit warnings if you use
        # any feature of Qt which has been marked as deprecated (the exact warnings
        # depend on your compiler). Please consult the documentation of the
        # deprecated API in order to know how to port your code away from it.
        DEFINES += QT_DEPRECATED_WARNINGS
        
        # You can also make your code fail to compile if you use deprecated APIs.
        # In order to do so, uncomment the following line.
        # You can also select to disable deprecated APIs only up to a certain version of Qt.
        #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
        
        CONFIG += c++11
        
        SOURCES += \
                main.cpp \
                google_widget.cpp
        
        HEADERS += \
                google_widget.h
        
        FORMS += \
                google_widget.ui
        
        # Default rules for deployment.
        qnx: target.path = /tmp/$${TARGET}/bin
        else: unix:!android: target.path = /opt/$${TARGET}/bin
        !isEmpty(target.path): INSTALLS += target
        
        DISTFILES += \
            upload_to_cloud.py
        
        
        #CONFIG += no_lflags_merge
        
        INCLUDEPATH +="C:\Users\vinay\AppData\Local\Programs\Python\Python37-32\include"
        
        
        
        win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37
        else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37d
        else:unix: LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37
        
        
        win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37.a
        else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37d.a
        else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37.lib
        else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37d.lib
        else:unix: PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37.a
        
        
        jsulmJ 1 Reply Last reply
        0
        • V vinaygopal

          @jsulm

          QT       += core gui networkauth
          
          greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
          
          TARGET = example_project
          TEMPLATE = app
          
          
          # The following define makes your compiler emit warnings if you use
          # any feature of Qt which has been marked as deprecated (the exact warnings
          # depend on your compiler). Please consult the documentation of the
          # deprecated API in order to know how to port your code away from it.
          DEFINES += QT_DEPRECATED_WARNINGS
          
          # You can also make your code fail to compile if you use deprecated APIs.
          # In order to do so, uncomment the following line.
          # You can also select to disable deprecated APIs only up to a certain version of Qt.
          #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
          
          CONFIG += c++11
          
          SOURCES += \
                  main.cpp \
                  google_widget.cpp
          
          HEADERS += \
                  google_widget.h
          
          FORMS += \
                  google_widget.ui
          
          # Default rules for deployment.
          qnx: target.path = /tmp/$${TARGET}/bin
          else: unix:!android: target.path = /opt/$${TARGET}/bin
          !isEmpty(target.path): INSTALLS += target
          
          DISTFILES += \
              upload_to_cloud.py
          
          
          #CONFIG += no_lflags_merge
          
          INCLUDEPATH +="C:\Users\vinay\AppData\Local\Programs\Python\Python37-32\include"
          
          
          
          win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37
          else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37d
          else:unix: LIBS += -L$$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/ -lpython37
          
          
          win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37.a
          else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37d.a
          else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37.lib
          else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37d.lib
          else:unix: PRE_TARGETDEPS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/libpython37.a
          
          
          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #14

          @vinaygopal On Windows it should be:

          LIBS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37.lib
          

          See https://doc.qt.io/qt-5/qmake-variable-reference.html#libs

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          V 1 Reply Last reply
          2
          • jsulmJ jsulm

            @vinaygopal On Windows it should be:

            LIBS += $$PWD/../../../AppData/Local/Programs/Python/Python37-32/libs/python37.lib
            

            See https://doc.qt.io/qt-5/qmake-variable-reference.html#libs

            V Offline
            V Offline
            vinaygopal
            wrote on last edited by
            #15

            @jsulm i did add the library as you had recomended it still did'nt work and more importantly i figured the module python.h and its equivalent library is not compatible with mingw gcc compiler it is only compatible with microsoft specific compilers as suggested by this question (https://stackoverflow.com/questions/6731100/link-to-python-with-mingw) they have provided an answer but is there a simpler way to get this done?

            jsulmJ 1 Reply Last reply
            0
            • V vinaygopal

              @jsulm i did add the library as you had recomended it still did'nt work and more importantly i figured the module python.h and its equivalent library is not compatible with mingw gcc compiler it is only compatible with microsoft specific compilers as suggested by this question (https://stackoverflow.com/questions/6731100/link-to-python-with-mingw) they have provided an answer but is there a simpler way to get this done?

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #16

              @vinaygopal One question: do you build your app as 64bit? Your Python seems to be 32bit.

              https://forum.qt.io/topic/113070/qt-code-of-conduct

              V 1 Reply Last reply
              0
              • jsulmJ jsulm

                @vinaygopal One question: do you build your app as 64bit? Your Python seems to be 32bit.

                V Offline
                V Offline
                vinaygopal
                wrote on last edited by
                #17

                @jsulm i am building my apps in the 64 bit configuration. shoudl i change it to 32 bit and try building the program again?

                jsulmJ 1 Reply Last reply
                0
                • V vinaygopal

                  @jsulm i am building my apps in the 64 bit configuration. shoudl i change it to 32 bit and try building the program again?

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #18

                  @vinaygopal said in embed a python function into my Qt App.:

                  shoudl i change it to 32 bit

                  Yes, you can't mix 32bit and 64bit

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  V 1 Reply Last reply
                  0
                  • jsulmJ jsulm

                    @vinaygopal said in embed a python function into my Qt App.:

                    shoudl i change it to 32 bit

                    Yes, you can't mix 32bit and 64bit

                    V Offline
                    V Offline
                    vinaygopal
                    wrote on last edited by
                    #19

                    @jsulm uninstalled python 32 bit and reinstalled 64bit version of python and included the libraries still the same error

                    :-1: error: No rule to make target 'C:/Users/vinay/Documents/first_qml_training/example_project/../../../AppData/Local/Programs/Python/Python38/libs/libpython38d.a', needed by 'debug/example_project.exe'. Stop.

                    jsulmJ 1 Reply Last reply
                    0
                    • V vinaygopal

                      @jsulm uninstalled python 32 bit and reinstalled 64bit version of python and included the libraries still the same error

                      :-1: error: No rule to make target 'C:/Users/vinay/Documents/first_qml_training/example_project/../../../AppData/Local/Programs/Python/Python38/libs/libpython38d.a', needed by 'debug/example_project.exe'. Stop.

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #20

                      @vinaygopal Can you show your current pro file?
                      Also did you a clean rebuild?

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

                      V 1 Reply Last reply
                      0
                      • jsulmJ jsulm

                        @vinaygopal Can you show your current pro file?
                        Also did you a clean rebuild?

                        V Offline
                        V Offline
                        vinaygopal
                        wrote on last edited by
                        #21

                        @jsulm yes i clean the build run qmake and then build the file everytime i change the pro file

                        #-------------------------------------------------
                        #
                        # Project created by QtCreator 2019-11-21T10:31:03
                        #
                        #-------------------------------------------------
                        
                        QT       += core gui networkauth
                        
                        greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                        
                        TARGET = example_project
                        TEMPLATE = app
                        
                        
                        # The following define makes your compiler emit warnings if you use
                        # any feature of Qt which has been marked as deprecated (the exact warnings
                        # depend on your compiler). Please consult the documentation of the
                        # deprecated API in order to know how to port your code away from it.
                        DEFINES += QT_DEPRECATED_WARNINGS
                        
                        # You can also make your code fail to compile if you use deprecated APIs.
                        # In order to do so, uncomment the following line.
                        # You can also select to disable deprecated APIs only up to a certain version of Qt.
                        #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                        
                        CONFIG += c++11
                        
                        SOURCES += \
                                main.cpp \
                                google_widget.cpp
                        
                        HEADERS += \
                                google_widget.h
                        
                        FORMS += \
                                google_widget.ui
                        
                        # Default rules for deployment.
                        qnx: target.path = /tmp/$${TARGET}/bin
                        else: unix:!android: target.path = /opt/$${TARGET}/bin
                        !isEmpty(target.path): INSTALLS += target
                        
                        DISTFILES += \
                            upload_to_cloud.py
                        
                        
                        #CONFIG += no_lflags_merge
                        
                        INCLUDEPATH="C:/Users/vinay/AppData/Local/Programs/Python/Python38/include"
                        LIBS += $$PWD/../../../AppData/Local/Programs/Python/Python38/libs/python38.lib
                        
                        jsulmJ 1 Reply Last reply
                        0
                        • JonBJ Offline
                          JonBJ Offline
                          JonB
                          wrote on last edited by JonB
                          #22

                          I'm keeping an eye on this thread. As I said right at the start

                          You can indeed go down @jsulm's path, but embedding is a lot more involved than just running a subprocess.
                          But as phrased if all you want to do is run an external script with some command-line arguments [...], it really is simple to do with QProcess, should take one minute to write.

                          I do hope/presume that (for both your sakes) for use case here all this embedding is indeed required and worth the effort! :)

                          V 1 Reply Last reply
                          1
                          • V vinaygopal

                            @jsulm yes i clean the build run qmake and then build the file everytime i change the pro file

                            #-------------------------------------------------
                            #
                            # Project created by QtCreator 2019-11-21T10:31:03
                            #
                            #-------------------------------------------------
                            
                            QT       += core gui networkauth
                            
                            greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                            
                            TARGET = example_project
                            TEMPLATE = app
                            
                            
                            # The following define makes your compiler emit warnings if you use
                            # any feature of Qt which has been marked as deprecated (the exact warnings
                            # depend on your compiler). Please consult the documentation of the
                            # deprecated API in order to know how to port your code away from it.
                            DEFINES += QT_DEPRECATED_WARNINGS
                            
                            # You can also make your code fail to compile if you use deprecated APIs.
                            # In order to do so, uncomment the following line.
                            # You can also select to disable deprecated APIs only up to a certain version of Qt.
                            #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                            
                            CONFIG += c++11
                            
                            SOURCES += \
                                    main.cpp \
                                    google_widget.cpp
                            
                            HEADERS += \
                                    google_widget.h
                            
                            FORMS += \
                                    google_widget.ui
                            
                            # Default rules for deployment.
                            qnx: target.path = /tmp/$${TARGET}/bin
                            else: unix:!android: target.path = /opt/$${TARGET}/bin
                            !isEmpty(target.path): INSTALLS += target
                            
                            DISTFILES += \
                                upload_to_cloud.py
                            
                            
                            #CONFIG += no_lflags_merge
                            
                            INCLUDEPATH="C:/Users/vinay/AppData/Local/Programs/Python/Python38/include"
                            LIBS += $$PWD/../../../AppData/Local/Programs/Python/Python38/libs/python38.lib
                            
                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #23

                            @vinaygopal Looks correct to me. I would try this:

                            • Delete build directory
                            • Run qmake
                            • build

                            https://forum.qt.io/topic/113070/qt-code-of-conduct

                            1 Reply Last reply
                            0
                            • V vinaygopal

                              When i click a button, i want to open up the python script (.py file) and run the python script written by me and exit python. I should be able to pass arguments to the python file through Qt c++? please help me out on how to achieve this. i did do some reading about QProcess class but i am not able to achieve this.

                              J.HilkJ Offline
                              J.HilkJ Offline
                              J.Hilk
                              Moderators
                              wrote on last edited by J.Hilk
                              #24

                              @vinaygopal how dead set are you on Python as the scripting language?

                              If it's not dictated and just a random selection, I'll want to offer 2 alternatives

                              https://doc.qt.io/qt-5/qscriptengine.html#details
                              and
                              https://doc.qt.io/qt-5/qjsengine.html#details

                              for QScript and JavaScript respectively, no external libs required


                              Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                              Q: What's that?
                              A: It's blue light.
                              Q: What does it do?
                              A: It turns blue.

                              1 Reply Last reply
                              0
                              • JonBJ Offline
                                JonBJ Offline
                                JonB
                                wrote on last edited by JonB
                                #25

                                @vinaygopal said in embed a python function into my Qt App.:
                                @vinaygopal originally wrote just:

                                i want to open up the python script (.py file) and run the python script written by me and exit python. I should be able to pass arguments to the python file through Qt c++? please help me out on how to achieve this. i did do some reading about QProcess class but i am not able to achieve this.

                                If that is indeed all he wants to do, he may not need any integrated scripting, he may just need to make his QProcess attempt work and we would be done....

                                If he would say why/what the script is supposed to do which requires embedding, we would all know what is required....

                                1 Reply Last reply
                                0
                                • JonBJ JonB

                                  I'm keeping an eye on this thread. As I said right at the start

                                  You can indeed go down @jsulm's path, but embedding is a lot more involved than just running a subprocess.
                                  But as phrased if all you want to do is run an external script with some command-line arguments [...], it really is simple to do with QProcess, should take one minute to write.

                                  I do hope/presume that (for both your sakes) for use case here all this embedding is indeed required and worth the effort! :)

                                  V Offline
                                  V Offline
                                  vinaygopal
                                  wrote on last edited by
                                  #26

                                  @JonB @jsulm @J-Hilk ok alright! i give up on embedding python into my program! it just doesn't seem to work however this is the reason for me to use Python, i have a file in my local desktop and i have to send it to the cloud and make the image uploaded a public image these cases can be easily achieved using python if i have to do it with javascript i will have to do it using node JS which will complicate the app, so from QProcess i am able to open the python file inside the python file i have a function called upload blob and it takes two arguments how do i call this function blob and pass those 2 arguments to them using QProcess().

                                  My C++ code

                                      QApplication a(argc, argv);
                                      qDebug()<<"working"<<endl;
                                      int result=QProcess::execute("C:/Users/vinay/AppData/Local/Programs/Python/Python38/python.exe",QStringList("C:/Users/vinay/Documents/first_qml_training/example_project/upload_to_cloud.py")<<"C:/Users/vinay/Documents/python folder/player1.png"<<"tank.png");
                                      qDebug()<<result<<endl;
                                  

                                  My python function

                                  #!/usr/bin/env python
                                  # -*- coding: utf-8 -*-
                                  from gcloud import storage
                                  import os
                                  os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="C:/Users/vinay/Downloads/My First Example Project-507e91a5b594.json"
                                  
                                  def upload_blob(source_file_name, destination_blob_name):
                                      """Uploads a file to the bucket."""
                                      bucket_name="example_1995"
                                      storage_client = storage.Client()
                                      bucket = storage_client.get_bucket(bucket_name)
                                      blob = bucket.blob(destination_blob_name)
                                  
                                      blob.upload_from_filename(source_file_name)
                                  
                                      print('File {} uploaded to {}.'.format(
                                          source_file_name,
                                          destination_blob_name))
                                          
                                  print("i am working")
                                  

                                  "

                                  JonBJ 1 Reply Last reply
                                  0
                                  • V vinaygopal

                                    @JonB @jsulm @J-Hilk ok alright! i give up on embedding python into my program! it just doesn't seem to work however this is the reason for me to use Python, i have a file in my local desktop and i have to send it to the cloud and make the image uploaded a public image these cases can be easily achieved using python if i have to do it with javascript i will have to do it using node JS which will complicate the app, so from QProcess i am able to open the python file inside the python file i have a function called upload blob and it takes two arguments how do i call this function blob and pass those 2 arguments to them using QProcess().

                                    My C++ code

                                        QApplication a(argc, argv);
                                        qDebug()<<"working"<<endl;
                                        int result=QProcess::execute("C:/Users/vinay/AppData/Local/Programs/Python/Python38/python.exe",QStringList("C:/Users/vinay/Documents/first_qml_training/example_project/upload_to_cloud.py")<<"C:/Users/vinay/Documents/python folder/player1.png"<<"tank.png");
                                        qDebug()<<result<<endl;
                                    

                                    My python function

                                    #!/usr/bin/env python
                                    # -*- coding: utf-8 -*-
                                    from gcloud import storage
                                    import os
                                    os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="C:/Users/vinay/Downloads/My First Example Project-507e91a5b594.json"
                                    
                                    def upload_blob(source_file_name, destination_blob_name):
                                        """Uploads a file to the bucket."""
                                        bucket_name="example_1995"
                                        storage_client = storage.Client()
                                        bucket = storage_client.get_bucket(bucket_name)
                                        blob = bucket.blob(destination_blob_name)
                                    
                                        blob.upload_from_filename(source_file_name)
                                    
                                        print('File {} uploaded to {}.'.format(
                                            source_file_name,
                                            destination_blob_name))
                                            
                                    print("i am working")
                                    

                                    "

                                    JonBJ Offline
                                    JonBJ Offline
                                    JonB
                                    wrote on last edited by JonB
                                    #27

                                    @vinaygopal
                                    Which is why I asked as I did at the start! Really wish you had said!

                                    So you simply want to pass some string filenames to a script which does something, right? No need for integrated scripting.

                                    You need to tell us what actually happens/goes wrong!

                                    First just make your Python script print out everything in sys.argv so we can see.

                                    Oh, I see, you haven't twigged that at all. You can't just write a function in a standalone Python script/program. You need to have a main program in your script, and access argv for the command-line arguments!

                                    import sys
                                    # Main entry point of app
                                    if __name__ == "__main__":
                                        # args = sys.argv
                                        # count = len(sys.argv)
                                        while i < len(sys.argv):
                                            arg = sys.argv[i]
                                            print(arg)
                                    

                                    There are millions of examples on the web.

                                    Separately, you'd better hope all your commands etc are happy with those / path separators rather than native \. I don't want to debate this again with others: some Windows stuff is happy with /, some is not.

                                    V 1 Reply Last reply
                                    3
                                    • JonBJ JonB

                                      @vinaygopal
                                      Which is why I asked as I did at the start! Really wish you had said!

                                      So you simply want to pass some string filenames to a script which does something, right? No need for integrated scripting.

                                      You need to tell us what actually happens/goes wrong!

                                      First just make your Python script print out everything in sys.argv so we can see.

                                      Oh, I see, you haven't twigged that at all. You can't just write a function in a standalone Python script/program. You need to have a main program in your script, and access argv for the command-line arguments!

                                      import sys
                                      # Main entry point of app
                                      if __name__ == "__main__":
                                          # args = sys.argv
                                          # count = len(sys.argv)
                                          while i < len(sys.argv):
                                              arg = sys.argv[i]
                                              print(arg)
                                      

                                      There are millions of examples on the web.

                                      Separately, you'd better hope all your commands etc are happy with those / path separators rather than native \. I don't want to debate this again with others: some Windows stuff is happy with /, some is not.

                                      V Offline
                                      V Offline
                                      vinaygopal
                                      wrote on last edited by vinaygopal
                                      #28
                                      This post is deleted!
                                      JonBJ 1 Reply Last reply
                                      0
                                      • V vinaygopal

                                        This post is deleted!

                                        JonBJ Offline
                                        JonBJ Offline
                                        JonB
                                        wrote on last edited by JonB
                                        #29

                                        @vinaygopal
                                        Why in the world would you try to access sys.argv[4:5] if you have said there 3 arguments?

                                        Please copy my code and run, then you will see your args are sys.argv[1:3]. You can pass those as appropriate to any functions you write.

                                        Yes, you are already passing your arguments on the command line from your C++ QProcess::execute() call.

                                        Please do a little printing/debugging yourself to discover this.

                                        V 1 Reply Last reply
                                        0
                                        • JonBJ JonB

                                          @vinaygopal
                                          Why in the world would you try to access sys.argv[4:5] if you have said there 3 arguments?

                                          Please copy my code and run, then you will see your args are sys.argv[1:3]. You can pass those as appropriate to any functions you write.

                                          Yes, you are already passing your arguments on the command line from your C++ QProcess::execute() call.

                                          Please do a little printing/debugging yourself to discover this.

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                                          vinaygopal
                                          wrote on last edited by
                                          #30

                                          @JonB sorry! i wasn't able to understand the code flow i made that comment thank you so much. this was such a fun ride.

                                          i was able to achieve what i wanted to do. this forum is really helpful.

                                          Thank you.

                                          JonBJ 1 Reply Last reply
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