#200 Python3 error (with MacOS)

[Brendan Simon]

I'm trying to run wxGlade on macOS Sierra using Python 3.6.1 but get errors. I've tried Python 3.3, 3.4 and 3.5 with the same result. Note: I am using the latest wxPython (Phoenix) daily snapshot install.

The error is:

$ python3.6 wxglade.py
  File "wxglade.py", line 105
    print _("""
          ^
SyntaxError: invalid syntax

How do I fix that error so I can use Python 3.6 and wxPython (Phoenix). The main wxGlade page claims it works with Python >= 3.1 and wxPython >= 2.8 (I presume that means Phoenix for Python 3).

It seems to launch ok if using Python 2.7, however that is using wxPython ('3.0.2.0 osx-cocoa (classic)')

I'm having problems using wxGlade (Python 2.7 and wxPython 3.0.2) where I can't seem to add widgets to my frame or sizer. For some reason I can mange to get a frame or dialog, but not be able to add widgets. It might be me not understanding how to use it, but I've tried dragging, double-clicking on widgets but nothing much happens. Anyway, that's probably another problem altogether.

[Dietmar Schwertberger]

Please use the version from the repository.
You can download from e.g. https://bitbucket.org/wxglade/wxglade/downloads/?tab=branches
(default branch: https://bitbucket.org/wxglade/wxglade/get/default.zip )

A release of Phoenix is coming closer. Once this is done, there will also be a proper release of wxGlade.

[Brendan Simon]

I am. I'm using revision 2283 according to Sourcetree.

What confused me was the _() in the code. I'd never seen that before and completely threw me. So with further investigation I found it is legit and used/installed by gettext.

So it seems the problem is more that the print functions are only Python2 compatible. I edited to place the surround parenthesis that Python3 requires and then found other issues for Python3 (e.g. not use as in exception handling.

Doesn't anybody test or use Python 3 with wxGlade?

I will continue my debugging/hacking :)

[Dietmar Schwertberger]

That's strange.
When I look at the repository, the print call is at line 79 and clearly is Python 3 compatible:

https://bitbucket.org/wxglade/wxglade/src/6e05ab49fc8763c1938b6301866eaeeef14960e6/wxglade.py?at=default&fileviewer=file-view-default

I'm using Python 3.4 and 3.5 most of the time. I have not yet tried 3.6.
Yes, the _ is confusing in the beginning and does not increase the readability of the code. Personally, I would not have added gettext support at all, as nobody can use wxGlade without reading the english wx documentation.

[Brendan Simon]

OK. My bad. I didn't have the latest 'default' branch checked out (as I thought I did). I had tag rel_0.7.2 checked out. DOH !!! Sorry for the noise.

I'm not a Mercurial user so was relying on SourceTree to give me information however it doesn't make the tags bold when checked out (as it does with branches).

I have a different error with Python 3.6 (and Python 3.5) and I will investigate that further and report a bug if necessary.

Again, apologies for the noise :-/

[Dietmar Schwertberger]

No problem. My Hg knowledge is also rather basic...
I don't have a Mac available here, but I'm quite sure we can figure out and fix if there's a bug.