from Tkinter import * root = Tk() cv = Canvas(root) cv.create_rectangle(10,10,50,50) cv.pack() root.mainloop() I want to convert canvas content to a bitmap or other image, and then do other operations, such as rotating or scaling the image, or changing its coordinates. Bitmaps can improve efficiency to show if I am no longer drawing. What should … Read more
I have to parse an xml file which gives me datetimes in Excel style; for example: 42580.3333333333.
Is there a rationale to decide which one of try or if constructs to use, when testing variable to have a value?
Before I re-invent this particular wheel, has anybody got a nice routine for calculating the size of a directory using Python? It would be very nice if the routine would format the size nicely in Mb/Gb etc.
I am trying to calculate a postfix expression using Python, but it did not work. I think this is maybe a Python-related problem. Any suggestions? expression = [12, 23, 3, '*', '+', 4, '-', 86, 2, '/', '+'] def add(a,b): return a + b def multi(a,b): return a* b def sub(a,b): return a – b … Read more
I need to be able to open a document using its default application in Windows and Mac OS. Basically, I want to do the same thing that happens when you double-click on the document icon in Explorer or Finder. What is the best way to do this in Python?
Perl and some other current regex engines support Unicode properties, such as the category, in a regex. E.g. in Perl you can use p{Ll} to match an arbitrary lower-case letter, or p{Zs} for any space separator. I don’t see support for this in either the 2.x nor 3.x lines of Python (with due regrets). Is anybody aware of a good strategy to get a similar effect? Homegrown solutions are welcome.
How does one change the font size for all elements (ticks, labels, title) on a matplotlib plot?
I have a large log file, and I want to extract a multi-line string between two strings: start and end.