Using Tcl extensions with Python?
How do you setup a Tcl extension to be accessible through Python? I understand that I'll have to use native Tcl calls to use it (tk.call() etc), but I can't figure out where to put the files or how to initialize them so I can call them. The package I would like to use is TkPNG: http://www.muonics.com/FreeStuff/TkPNG/ Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Tcl extensions with Python?
On Thu, Jul 17, 2008 at 6:48 PM, C Martin <[EMAIL PROTECTED]> wrote:
> How do you setup a Tcl extension to be accessible through Python? I
> understand that I'll have to use native Tcl calls to use it (tk.call()
> etc), but I can't figure out where to put the files or how to
> initialize them so I can call them.
>
> The package I would like to use is TkPNG:
> http://www.muonics.com/FreeStuff/TkPNG/
>
You can put them anywhere, but if it is on tcl's auto_path then you
just need a call to "package require tkpng". To check what directories
are part of auto_path, start tclsh and enter "set auto_path".
Follows a sample code to demonstrate how to load the required package:
import Tkinter
root = Tkinter.Tk()
tkpnglib = "/usr/lib/tkpng0.9"
root.tk.eval("""
global auto_path
lappend auto_path {%s}""" % tkpnglib)
root.tk.eval("package require tkpng")
If tkpng were installed in some directory belonging to auto_path, then
you wouldn't need that call to tk.eval.
And.. for tkpng specifically, you won't need tk.call to use it, you
just need to create your images using Tkinter.PhotoImage with a "png"
type.
> Thanks.
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
-- Guilherme H. Polo Goncalves
--
http://mail.python.org/mailman/listinfo/python-list
Re: Using Tcl extensions with Python?
C Martin wrote: How do you setup a Tcl extension to be accessible through Python? I understand that I'll have to use native Tcl calls to use it (tk.call() etc), but I can't figure out where to put the files or how to initialize them so I can call them. The package I would like to use is TkPNG: http://www.muonics.com/FreeStuff/TkPNG/ Thanks. ARGH, Tcl!!! ;-) I know that's not the question, but do you know PIL (http://www.pythonware.com/products/pil)? -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Tcl extensions with Python?
On Jul 17, 5:18 pm, "Guilherme Polo" <[EMAIL PROTECTED]> wrote: [snip] > And.. for tkpng specifically, you won't need tk.call to use it, you > just need to create your images using Tkinter.PhotoImage with a "png" > type. Thank you Guilherme, that's all great info. > Thomas Troeger <[EMAIL PROTECTED]> wrote: > ARGH, Tcl!!! ;-) I know that's not the question, but do you know PIL > (http://www.pythonware.com/products/pil)? Yes, I know about PIL. However, I need use PNGs with a full alpha channel. PIL only seems support simple transparency, whereas TkPNG seems to work as expected with them. If I am incorrect in this, then please let me know how to use it! Thanks. -- http://mail.python.org/mailman/listinfo/python-list
