Input Python Output's into a different program

Question

At this moment I have a Python GUI program that outputs some data, I want to find a way to take the outputs and input them into a different running program. I've been searching for a way to do this for a while and can't seem to find a way.

Thanks all help appreciated!!!

Edit:

Program one with GUI (Designed by me) outputs strings. Program two running in commandline (not designed by me and do not have access to source code).

I need program one outputs to go into the commandline of program two. The way I am thinking about it is that I am trying to interface between them.

Answer 1

您可以简单地将数据写入第一个程序的输出文件，然后将该输出文件读取为第二个程序的输入。