How/where to store calibration values - written by program A, read by program B
Many years ago, Fredrik Lundh provided an answer for this question on his website effbot.org. Unfortunately that site has gone, but luckily, it has been preserved in the "wayback machine"... https://web.archive.org/web/20200724053442/http://effbot.org:80/pyfaq/how-do-i-share-global-variables-across-modules.htm In short, create an empty file named something like 'config.py' or 'shared.py' in a folder that both scripts can use. Import the file in both scripts. import shared Then when you want to share a value, use... shared.variablename=3.14159 The file can then be accessed by both scripts. The biggest caveat is that the shared variable MUST exist before it can be examined or used (not surprising). I sincerely hope this helps. Greg -- *My memory check bounced* Greg Walters -- https://mail.python.org/mailman/listinfo/python-list
Re: How/where to store calibration values - written by program A, read by program B
First, one of the posters got it right. Nothing is REALLY ever "written" to the file. Consider it a global variable that isn't a global variable. Assume you have two modules, A and B. Both modules import config. Furthermore, let's assume that Module B 'writes' a variable called "font"... shared.font="TkDefaultFont" That information is immediately available to Module A. All Module A has to do is (assuming that it has been initialized previously) do something like this... myFont=shared.font Now, myFont has the value "TkDefaultFont" in both modules A and B. Further, let's assume that we need to pass a ttk::Theme to Module B... Module A does a shared.currentTheme = "clam" Anytime Module B wants to check the value of the shared variable, it can do... MyCurrentTheme = shared.currentTheme. You can also use a similar variable that will hold a flag boolean "saying" something like shared.UpdatedInfo = True This can be tested at any time via any timer check, including a Tkinter root.after type timer. If the timer is true, simply go through your list of shared variables (You should keep them in a list just to be sure) then they can be checked on a timed basis. Or just use ... MyVariable=shared.VariableName anytime you need to make sure it's updated. If the value is the same, it only wastes a few clock cycles. However if it has been updated, then you got the latest version. This can work for any number of modules. You aren't limited to just two. I hope this helps. Greg -- *My memory check bounced* Greg Walters -- https://mail.python.org/mailman/listinfo/python-list
RE: Subject: Are there any easy-to-use Visual Studio C# WinForms-like GUI designers in the Python world for Tk?
> I'm used to C# WinForms, which has an easy-to-use drag-and-drop GUI designer in Visual Studio. Is there anything similar for Tk? How about Qt? What do you recommend as the easiest way to create GUI programs in Python, similar to the ease of use of C# WinForms? I can't say much for Qt other than there is a GUI designer for it, but I don't know much about it. As to the portion of your question about Python and Tkinter, YES! The project is called PAGE and it is a drag and drop designer using the Tk and ttk toolkits (basically Tkinter). It's been around for many years, is completely FREE and open source, the source code is included and works on Windows, Linux and Mac OS. The current version is 7.6 and you can find it at https://sourceforge.net/projects/page/ and it has been downloaded over 2000 times just in December, and over 26,000 times in 2023. There is a TONNE of examples, full documentation and a number of tutorials. The Sourceforge acts as the main help site, but there is also a Discord site dedicated to help and support. I sincerely hope this helps! Greg Walters -- *My memory check bounced* Greg Walters -- https://mail.python.org/mailman/listinfo/python-list
