Python binding buggy?

[Wolfram]

Huhu,
I tried Python with PySFML 1.6 on Windows 7 64bit with 32bit Python 2.7 but it crashes..
(In C++ i haven't any problems...)

First I tried the sample from the PySFML tutorial, this worked good.
Than I tried the samples in the SDK but it chrashed in the Worm sample when I pressed the enter/return key.
I also tried to make a simple game but it chrashes in this line:

Code: [Select]


Window.Draw( sf.String( "MenuState" , sf.Font.GetDefaultFont(), 30 ) )


Source:

Code: [Select]


from PySFML import sf

class BaseState( object ):
    def Run( self, Window ):
        return None
class MenuState( BaseState ):
    def __init__( self ):
        super( MenuState, self ).__init__()

    def Run( self, Window ):
        while True:
            Event = sf.Event()
            while Window.GetEvent(Event):
                if Event.Type == sf.Event.Closed:
                    return GameState
            Window.Clear()
            Window.Draw( sf.String( "MenuState" , sf.Font.GetDefaultFont(), 30 ) )
            Window.Display()
        return None
class GameState( BaseState ):
    def __init__( self ):
        super( GameState, self ).__init__()

    def Run( self, Window ):
        while True:
            Event = sf.Event()
            while Window.GetEvent(Event):
                if Event.Type == sf.Event.Closed:
                    return None
            Window.Clear()
            Window.Draw( sf.String( "GameState" , sf.Font.GetDefaultFont(), 30 ) )
            Window.Display()
        return None
class Game:
    def Run( self ):
        Window = sf.RenderWindow( sf.VideoMode( 800, 600, 32 ), "PySFMLTest", sf.Style.Close )
        Window.SetFramerateLimit( 60 )

        Next_State = MenuState

        while Next_State is not None:
            State = Next_State()
            Next_State = State.Run( Window )

Main = Game()
Main.Run()


If I remove the Window.Draw(...) lines, it works...
Is the Python binding buggy?

[Tank]

svenstaro, can you have a look into it? Maybe you adjusted something there for the 1.6 binding.

[Svenstaro]

It probably doesn't find the media in both cases. Can you post the error please?

[Wolfram]

It probably doesn't find the media in both cases. Can you post the error please?

Ehm, in my sample I don't use any media, only SFML.
It crashes in both cases without an error.
Windows displays only that python.exe doesn't work anymore.

[Svenstaro]

Works for me. Also, you are using media since you are using a font. Can you post the error that you get when running python yourapp.py from the command line?

[Wolfram]

Works for me. Also, you are using media since you are using a font. Can you post the error that you get when running python yourapp.py from the command line?

Ok, but the font media is build in SFML?! So I don't use any extern media.^^

I run my sample in the python shell:

Code: [Select]

Python 2.7 (r27:82525, Jul  4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>>

There aren't any errors.. i get only the message from Windows that python.exe doesn't work anymore.

[Svenstaro]

I just tested on Windows 7 x64 just for you and it worked.

EDIT: Unless you provide more info I can't really help. Did you try making PySFML yourself with your specific version of Python?

[Wolfram]

:-/ for me it does not work..

I tried to build them myself, but i get an error: Unable to find vcvarsall.bat
(I have VC2010 Express.)
(I don't have MinGW and I don't really know which package I need to install to use MinGW.)

Did you use also Python 2.7 on your Windows? Otherwise I'll try Python 3.. :-/

[Svenstaro]

I used Python 2.7 and I also tried it in my virtual machine. You could updating your drivers or try it under another OS.

[Wolfram]

Hmpf, I tried Python 3.12 but it also crashes :-/
My drivers are up to date.
SFML with C++ works perfectly..
:-/

Maybe I try later to install MinGW and compile PySFML.

[Tank]

Please try the following:

Code: [Select]


while True:
Event = sf.Event()
while Window.GetEvent(Event):
if Event.Type == sf.Event.Closed:
return GameState

Window.Clear()

string = sf.String( "MenuState", sf.Font.GetDefaultFont(), 30 )
Window.Draw( string )

Window.Display()


I somehow think it's a reference counting problem maybe. What Wolfram forgot to say is that when he creates the sf.String object outside the while loop, everything works perfectly, so a media problem can be safely ruled out.

[Wolfram]

This works:

Code: [Select]


def Run( self, Window ):
        string = sf.String( "MenuState", sf.Font.GetDefaultFont(), 30 )
        while True:
            Event = sf.Event()
            while Window.GetEvent(Event):
                if Event.Type == sf.Event.Closed:
                    return GameState
            Window.Clear()
            Window.Draw( string )
            Window.Display()
        return None


BUT, it crashes after I press Close o.O although I don't have a Window.Draw() in the GameState class.

[Tank]

And when you drop the "Window.Draw( string )" call, everything works?

[Wolfram]

Nope, it also crashes when I change the state. :-/

[Spellbreaker]

I can confirm that, I'll try to get more information. Python2.7 & SFML 1.6 on Win7 - 64 Bit