Should I use Python for these programs?
grante at visi.com
Tue Jul 10 05:26:27 CEST 2007
On 2007-07-10, CC <crobc at BOGUS.sbcglobal.net> wrote:
> I wish to accomplish a few PC programming tasks, and am
> considering to learn Python:
> 1. Develop a simple GUI program to run on Linux and Windows
> which can send parameters and small blocks of data to an
> embedded microcontroller device via RS-232 or USB. Also
> display simple data (probably single numbers) sent from the
> Note, if it is USB, then the client will be implemented by
> me using FTDI chips that appear to the PC as a serial port.
I do a lot of that sort of thing using Python. I'd probably
recommend using pyserial and wxWidgets. Both are
In any case, both "normal" PC serial ports and USB-serial ports
looks the same to a Linux app. Windows support for stuff like
that wasn't so good last time I tried, but it's supposed to work.
> 2. Develop a simple vector drawing program that will allow one
> to freehand draw a sketch composed of a few lines, or
> perhaps render text in a vector form. Then sample the
> lines with a certain (user configurable) spacing, and use
> the mouse to move the sample points along the lines to
> tweak the sample locations if desired. Then output a file
> of X,Y coordinates for the samples.
> What is this crazy thing for? It's to develop simple
> lasershow vector frames. I am also designing a DSP-based
> lasershow output device, so the same capabilities of
> delivering a data payload over serial/USB to a target
> device will be needed here as well.
Most of the graphics I do with Python is with Gnuplot (not
really appropriate for what you want to do.
wxWidgets/Floatcanvas might be worth looking into.
> I would prefer to be able to write a program that is cross-platform
> between Linux and Windows. I realize this might be especially
> problematic with the serial comms.
Not at all. Cross-platform serial stuff is easy.
> I am also confused by the plethora of Python GUI extensions,
> though Tkinter seems like a likely candidate. I am uncertain
> if I will have difficulty learning how to use this if I don't
> know Tcl/Tk.
Tk's canvas widget is pretty powerful, and you don't need to
know Tcl -- it's all hidden behind a veneer of Python.
> Do you think Python is the right language for these projects?
It's what I use for stuff like that.
Grant Edwards grante Yow! MERYL STREEP is my
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