You’d have to use some other GUI toolkit to manage the message box. You could check to see if QT is installed and use that if it is, I suppose.
David
···
On Jun 12, 2015 12:26 PM, “Boštjan Mejak” bostjan.xperia@gmail.com wrote:
Please look at my code snippet here: https://bpaste.net/show/721e8d0044c4. Notice that my code wouldn’t work if the user (that’ll use my app on his/her machine) doesn’t have wxPython installed, because the exception would raise its own exception.
My goal is to tell the user to install wxPython, but tell the user in a message box, not via the exception message string. Got any idea how should I tackle with my challenge?
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Actually it would be smarter to use a GUI toolkit already included in python: Tkinter
def show_no_wx():
import tkMessageBox
# we have to create a main window to be able to hide it
# see http://stackoverflow.com/questions/17280637/tkinter-messagebox-without-window
import Tkinter
root = Tkinter.Tk()
root.withdraw()
tkMessageBox.showerror("No wx", "Error: no wxPython, install it first!")
try:
import _wx
except ImportError:
# wx not installed
show_no_wx()
raise
``
This was actually fun!
···
On Friday, June 12, 2015 at 7:35:18 PM UTC+2, David Woods wrote:
You’d have to use some other GUI toolkit to manage the message box. You could check to see if QT is installed and use that if it is, I suppose.
David
wx was written as _wx so that it could be tested on a machine which has wx, sorry for not fixing that
nepix32 wrote:
Actually it would be smarter to use a GUI toolkit already included in
python: Tkinter
This is a good answer. Tkinter is built-in and will always be available.
···
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Except on Mac…I don’t know why. I had to specifically install ActiveState’s TCL library to use Tkinter on Mac 10.6+ (IDLE and tkinter with Tcl/Tk on macOS | Python.org)…
Mike
···
On Friday, June 12, 2015 at 4:18:33 PM UTC-5, Tim Roberts wrote:
nepix32 wrote:
Actually it would be smarter to use a GUI toolkit already included in
python: Tkinter
This is a good answer. Tkinter is built-in and will always be available.
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Tim Roberts, ti...@probo.com
Providenza & Boekelheide, Inc.
Well, it’s there but buggy.
I think this is getting addressed in future, if not the latest, releases.
Cnut there are no other platform independent options.
-Chris
···
On Jun 12, 2015, at 2:25 PM, Mike Driscoll kyosohma@gmail.com wrote:
On Friday, June 12, 2015 at 4:18:33 PM UTC-5, Tim Roberts wrote:
nepix32 wrote:
Actually it would be smarter to use a GUI toolkit already included in
python: Tkinter
This is a good answer. Tkinter is built-in and will always be available.
–
Tim Roberts, ti...@probo.com
Providenza & Boekelheide, Inc.
Except on Mac…I don’t know why. I had to specifically install ActiveState’s TCL library to use Tkinter on Mac 10.6+ (https://www.python.org/download/mac/tcltk/)…
Mike
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http://stackoverflow.com/questions/774175/how-can-i-open-a-message-box-in-a-windows-batch-file
Or a more cross-platform way; open a browser with a local HTML file which
is distributed by you.
I googled "popup a message box".
And extremely cross-platform, indeed.
Karsten
···
On Sun, Jun 14, 2015 at 11:49:30AM +0200, Boštjan Mejak wrote:
Found something even better than the batch script solution. ctypes to the
rescue!
import ctypes
ctypes.windll.user32.MessageBoxW(0, "wxPython is missing.", "App Error", 0)
Works like a charm! 
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I wasn't aiming for platform independency here.
Then I must have misunderstood. Your first postings to me
seemed to imply as much.
On Windows, you'd just use ctypes for this purpose, but on
Linux I can't say what is there to use. Got a clue?
Not beyond what was already suggested:
- use tkinter
- use webbrowser.open()
Karsten
···
On Sun, Jun 14, 2015 at 02:07:16PM +0200, Boštjan Mejak wrote:
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Uhm, Chris, what did you mean to say with the word "cnut"? Is it a typo?
typo -- was supposed to be 'but' -- not sure how that happened!
And it turns out I was wrong the browser option is cross platform and would
work well -- even better if the app has a web page to refer to!
note that it is probably possible to use ctypes to do platform-specific
things for other platforms. Though On Linux at least, a regular old console
message would probably be fine.
On OS-X, I note that Apple's built-in Python has a (likely old) version of
wx out of the box.
-Chris
···
On Sat, Jun 13, 2015 at 12:19 AM, Boštjan Mejak <bostjan.xperia@gmail.com> wrote:
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It won't show a message box but it will enable people to see
a HTML page in a cross platform way regardless of whether
wxPython (or, in fact, any other UI toolkit) is installed.
import webbrowser
webbrowser.open('file:://path/to/your/file.html')
Karsten
···
On Sun, Jun 14, 2015 at 10:03:29PM +0200, Boštjan Mejak wrote:
Karsten, you mentioned webbrowser.open() for this purpose and achieve
platform independency, but I have no idea how to show a message box using
the webbrowser module. Can you like express yourself in code?
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You would open an HTML page provided by yours truly which
explains what to do and also links to the download.
Karsten
···
On Sun, Jun 14, 2015 at 10:13:48PM +0200, Boštjan Mejak wrote:
I can open Redirecting... in the user's browser
with webbrowser.open("Redirecting...), but the
user would be baffled as to why did his browser open a wxpython.org web
page. I am assuming that my users are very dumb and I am making sure that I
am speaking to them directly via a message box and instructing them exactly
what to do, rather than giving them a hint by opening a web page that they
probably never heard of and expect they'll understand the hint and install
wxPython. I must tell you, some people are really dumb.
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