interactive-mode

Ok, so I know you can make an NSTask to run command line tools with Objective-C: NSTask *task; task = [[NSTask alloc] init]; [task setLaunchPath: @"/usr/bin/gdb"]; [task launch]; I'm just wondering if there's a way to communicate with interactive command line tools such a as gdb . This would involve giving the command inputs based on user interaction (like run , kill or quit with gdb ) and then reacting based on the information it outputs. You can use NSTask's setStandardInput: , setStandardOutput: and setStandardError: selectors in conjunction with NSPipe instances to communicate with the

I'm using SWI-Prolog interactively. When I run my query, I get a prefix of the output and the rest is taken off (marked using the string ...|... ). Is this normal or should I go back and fix my program? Nothing to worry about. It's just abbreviating it visually... just press 'w' (write) to display the complete internal representation of the list. The number of items shown is controlled by a prolog flag. You can remove it by issuing remove_max_depth:- current_prolog_flag(toplevel_print_options,Options), select(max_depth(_), Options, NOptions)-> set_prolog_flag(toplevel_print_options, NOptions);

When I first started reading about Python, all of the tutorials have you use Python's Interactive Mode. It is difficult to save, write long programs, or edit your existing lines (for me at least). It seems like a far more difficult way of writing Python code than opening up a code.py file and running the interpreter on that file. python code.py I am coming from a Java background, so I have ingrained expectations of writing and compiling files for programs. I also know that a feature would not be so prominent in Python documentation if it were not somehow useful. So what am I missing? Let's see

The documentation for the "interactive mode" in Matplotlib's pyplot reads: The interactive property of the pyplot interface controls whether a figure canvas is drawn on every pyplot command. If interactive is False, then the figure state is updated on every plot command, but will only be drawn on explicit calls to draw(). When interactive is True, then every pyplot command triggers a draw. This seems clear enough: when the interactive mode is on, one can do plot() without having to do draw() . However, doing draw() in the following code does not do anything: from matplotlib import pyplot as pp