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Re: GRC 3.8 Output language Py2 or Py3 (Windows)

From: Jerom Maas - LR
Subject: Re: GRC 3.8 Output language Py2 or Py3 (Windows)
Date: Thu, 20 Feb 2020 15:38:47 +0000

hi Marcus,

Thanks again for the quick reply.

It's good to know that I won't get py3 out of windows GRC. 

I'll switch to linux for now. I've not worked with it before, but I'm not afraid either 😉.

Most important for me is to avoid Py2 if possible.

I'll keep an eye out for possible windows updates in the future. Should you need a guinea-pc, feel free to contact me.

Thanks for the info,


Van: Müller, Marcus (CEL) <address@hidden>
Verzonden: donderdag 20 februari 2020 16:24:49
Aan: address@hidden; Jerom Maas - LR
CC: address@hidden
Onderwerp: Re: GRC 3.8 Output language Py2 or Py3 (Windows)
Ha! Don't get me wrong, it's awesome you're using Windows.

Now, I don't think Geof came around to building a Python3 GNU Radio, so
you're out of luck for now. You could try your hands on doing that
yourself – follow the link to the Github repo with the source building
scripts – but I'd doubt it's easy :(


Use WSL to run GNU Radio 3.8 on Ubuntu 19.04 or 19.10[1] under windows,
then install GNU Radio 3.8 [2]. Install an X server for windows.
I've had a student that did that and used VS Code on windows to target
his WSL installation, it worked well.

Or, really, just install a modern Linux (eg. Ubuntu 19.10, Debian)
natively or in a VM for now :)

As of now, there IS concentrated efforts to improve the windows
situation, but to be honest, it's a strange and confusing and
frustrating world for a lot of us, and I don't even have a single
Windows machine...

Best regards,

[1] https://urldefense.proofpoint.com/v2/url?u=https-3A__wiki.ubuntu.com_WSL-23Ubuntu-5Fon-5FWSL&d=DwIFaQ&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=va4bD3iSeVyxTS3NnAN1oTx0C5TfsrYkCr2kFmx24v0&s=2tDf7lNzveWEyNKZWPEZap9kode2wzF1J4qdX4rF6nk&e=
[2] https://urldefense.proofpoint.com/v2/url?u=https-3A__launchpad.net_-7Egnuradio_-2Barchive_ubuntu_gnuradio-2Dreleases&d=DwIFaQ&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=va4bD3iSeVyxTS3NnAN1oTx0C5TfsrYkCr2kFmx24v0&s=LSEvfOORFeBb413MJ14w5snDGugZmuVASEwW9QHMa-A&e=
On Thu, 2020-02-20 at 15:17 +0000, Jerom Maas - LR wrote:
> Hello Marcus,
> that is correct! Sometimes, looking at the help on these forums, I also have the feeling that I'm one of the few windows users.
> First of all, a correction: I did not use any .exe, but the file:
> gnuradio_3.8.0.0_win64.msi
> I got it from https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gcndevelopment.com_gnuradio_downloads.htm&d=DwIFaQ&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=va4bD3iSeVyxTS3NnAN1oTx0C5TfsrYkCr2kFmx24v0&s=Ia-uzBv1tMkVhBYI2Nrd_k3qtGMkNRaOlveZ79q0yz0&e= , downloaded yesterday (feb 19th).
> The file can be found under the 64-Bit Any CPU Windows installer, top link - v3.8.0.0/v1.7 BETA
> Thank you very much for the help. It's frustrating to be using windows and to differ from the linux standards, but looking at the bright side:
> I'm glad to help fixing the last problems for windows users :).
> Jerom
> Van: Müller, Marcus (CEL) <address@hidden>
> Verzonden: donderdag 20 februari 2020 16:11:15
> Aan: address@hidden; Jerom Maas - LR
> CC: address@hidden
> Onderwerp: Re: GRC 3.8 Output language Py2 or Py3 (Windows)

> AAAAH you're one of the few windows users; we'll need you to tell us
> *exactly* what you've downloaded!
> Best regards,
> Marcus
> On Thu, 2020-02-20 at 15:08 +0000, Jerom Maas - LR wrote:
> > Hello Michael, thanks for the quick response!
> > I've just reinstalled GRC, but I've not seen a single option about Py2 or Py3. Maybe it's because I use the .exe installer, that it automatically chooses Py2 then? As said before, I don't even have Py2 installed on my pc. Should I give it a go using Powershell, or try another method?
> >
> > Jerom
> > Van: Michael Dickens <address@hidden>
> > Verzonden: donderdag 20 februari 2020 15:50:43
> > Aan: Jerom Maas - LR
> > CC: address@hidden
> > Onderwerp: Re: GRC 3.8 Output language Py2 or Py3 (Windows)
> > 
> > Hi Jerom - I believe GRC outputs Py script based on how GR is installed. Since GR38 can be installed using Py27 or Py3, if it's installed using Py27 then GRC will output for Py27. If installed for Py3 then it'll output for Py3. Pretty sure this is correct. Hence, I'd advise you to check how GR is installed in the first place & if for Py27 then see about getting it installed for Py3. Hope this is useful! - MLD
> >
> > On Thu, Feb 20, 2020 at 9:06 AM Jerom Maas - LR <address@hidden> wrote:
> > > Hello all,
> > >
> > > after installing GRC 3.8, I find that the .py files that are created from grc are python 2, instead of python 3.
> > > I use Py3 and not Py2, so that's a problem.
> > > How do I change the output language of GRC? If I use the 'option block'  I can only choose 'Python'  or ' C++' , but I can't specify the version of Python. I am using Windows.
> > >
> > > Thanks for your help,
> > >
> > > Jerom Maas
> > >
> > > PS I am not so familiar with C, so if the solution is to alter a bit in Cmake or something, can you specifically name the file that needs to be changed? That would be very helpful!
> > >
> > >
> > >
> >
> >

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