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Unable to import PySide2

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  • P Offline
    P Offline
    Pit96
    wrote on last edited by
    #7

    When I type in "pip3 install pyside2" or "pip install pyside2" it always says: Requirement already satisfied. So it should be installed for both versions.

    JonBJ 1 Reply Last reply
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    • P Pit96

      When I type in "pip3 install pyside2" or "pip install pyside2" it always says: Requirement already satisfied. So it should be installed for both versions.

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by JonB
      #8

      @Pit96
      For both pip & pip3 you can go pip[3] list to list what actually is installed. I would look through that, carefully, If what it is complaining about is indeed installed, then I can only guess that where you are trying to run your code from is not using where you pip installed to, e.g. inside/outside a virtual environment? I am unsure whether message ImportError: No module named PySide2.QtWidgets is telling you PySide2 found but no QtWidgets there, or whether it means no PySide2 at all, you might play with that.

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        Pit96
        wrote on last edited by
        #9

        @JonB So I followed your suggestion and also copied the code to PyCharm. When I did that it still said that it cannot find PySide2 but it asked me if I want to install it. After I did it the code worked in PyCharm. I also checked if PySide2 is installed for both Python Versions and it is. So I guess it is really a problem regarding a virtual environment. My question is now how do I know if my QT Creator App is working inside/outside a virtual environment? Thanks in Advance!

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        • D Offline
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          deleted533
          wrote on last edited by
          #10
          This post is deleted!
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          • D Offline
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            dalilander
            wrote on last edited by
            #11

            Old topic but same problem but it solved for me like this:

            pip3 list and pip list both showed PySide2 as installed. In Qt/Options I noticed Python 2.7 as default. Changed this to 3.6 and then when trying to compile I was asked to install some more stuff. After that everything worked.

            G 1 Reply Last reply
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            • D dalilander

              Old topic but same problem but it solved for me like this:

              pip3 list and pip list both showed PySide2 as installed. In Qt/Options I noticed Python 2.7 as default. Changed this to 3.6 and then when trying to compile I was asked to install some more stuff. After that everything worked.

              G Offline
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              gheeto
              wrote on last edited by
              #12

              @dalilander Hi there, hey I'm having the same problem. What do you mean by Qt/Options - where do I find these options to change this to 3.7 (for me).

              I'm working with 3.7.3 on a Windown 10 machine. Anaconda Navagator to manage packages. I'm quite new to all of this so any information would be great.

              V 1 Reply Last reply
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              • G gheeto

                @dalilander Hi there, hey I'm having the same problem. What do you mean by Qt/Options - where do I find these options to change this to 3.7 (for me).

                I'm working with 3.7.3 on a Windown 10 machine. Anaconda Navagator to manage packages. I'm quite new to all of this so any information would be great.

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                vardaan
                wrote on last edited by
                #13

                @gheeto Tools->Options->Python->Python 3.7.3. That's what he means to say, that didn't work for me though. I have python 3.8.2 does that make it a problem?

                J 1 Reply Last reply
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                • V vardaan

                  @gheeto Tools->Options->Python->Python 3.7.3. That's what he means to say, that didn't work for me though. I have python 3.8.2 does that make it a problem?

                  J Offline
                  J Offline
                  Johnny_5
                  wrote on last edited by
                  #14

                  @vardaan I'm having the same problem in Qt Creator 4.11.1 and Neon 20.04. Importing works fine in Idle but doesn't in QT Creator or if run from terminal.

                  jsulmJ 1 Reply Last reply
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                  • J Johnny_5

                    @vardaan I'm having the same problem in Qt Creator 4.11.1 and Neon 20.04. Importing works fine in Idle but doesn't in QT Creator or if run from terminal.

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #15

                    @Johnny_5 Please show the code and error message

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

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                    • Y Offline
                      Y Offline
                      Yaser.F
                      wrote on last edited by
                      #16

                      Follow the steps ( @Pit96 ) ==> open your project python and then click Projects >>Build & Run >> Run Settings >> Interpreter >> click Manage and set Python 3 or Python 2

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