On Nov 1, 5:34 am, Dave Angel <da...@ieee.org> wrote:KillSwitch wrote:
> I have a C++ program, with a GUI, into which I have embedded python. I > have made several python functions in C++, one of which I use to > override the normal stdout and stderr so that they print to a text box > of my GUI. One thing I cannot think of how to do is to redefine stdin > so that it pauses the program, waits for a user to type input into the > box, hit enter, and takes input from another text element and sends it > to python like it was the console. I suspect you don't really want to redirect stdin, but instead implementraw_input(). [...]Try changing __builtins__.raw_input to reference your newfunction.But what would the function do? How would it pause python and wait for it to have text to send?
Whatever you want. You don't have to "pause python", Python itself won't resume until your function doesn't return. (You should release the GIL if your C++ function doesn't call back to Python code, to allow other threads to continue, but that's another story). This is a raw_input replacement written in Tkinter; it shows a dialog box instead of reading from stdin:
py> from Tkinter import *
py> from tkSimpleDialog import askstring
py> def my_raw_input(prompt):
... return askstring("Python", prompt)
...
py> root = Tk()
py> import __builtin__
py> __builtin__.raw_input = my_raw_input
py>
py> raw_input("What's your name?")
'Gabriel'
--
Gabriel Genellina<<attachment: ClipBoard-1.png>>
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