Quit Does Not Quit When Requested

[mandli]

I noticed that the new functionality added by #308 has a peculiar behavior when q is pressed. I think it thinks it quits but another q into the terminal is necessary. Not entirely sure why this is happening but maybe @giboul might?

Also, the 80's pop song issue title was purposeful.

[giboul]

Hi Kyle!

My best guess is that the process is stuck in the readlineinput inside the cmdloop because the key bindings are bypassing cmd by directly calling cmd.do_<key>: https://github.com/python/cpython/blob/3.13/Lib/cmd.py#L134

Maybe I should've passed the keys directly to stdout so that #308 integrates into cmd... I just don't know how to send 'enter' to stdout the console (or just force the readlineinput() to execute), let me read up on it.

Edit: I think an EOFError should be raised but my attempts raised the error to matplotlib instead of cmd

[mandli]

Yeah, that's what I was guessing but I am not sure either what to send the key press to. It's not too big of a deal as you can easily quit by returning to the terminal. It is odd that it seems to think it quit though given it responds accordingly.

[rjleveque]

@mandli, @giboul -- I'm trying to replicate this, but not seeing any strange behavior when using Iplotclaw as below....

In [4]: ip=Iplotclaw(outdir='_output'); ip.plotloop()
Importing setplot.setplot from /Users/rjl/git/clawpack/geoclaw/examples/tsunami/chile2010.
Executed setplot successfully

Interactive plotting... 
Type ? at IPLOT prompt for list of commands

    Start at which frame [default=0] ? 1
    Reading  Frame 1 at t = 3600  from outdir = /Users/rjl/git/clawpack/geoclaw/examples/tsunami/chile2010/_output
    Plotting Frame 1 at t = 3600.0
PLOTCLAW > n
    Reading  Frame 2 at t = 7200  from outdir = /Users/rjl/git/clawpack/geoclaw/examples/tsunami/chile2010/_output
    Plotting Frame 2 at t = 7200.0
PLOTCLAW > q
quitting...

In [5]: 

And also when I use pyclaw, e.g.

$ cd $CLAW/pyclaw/examples/euler_2d
$ python shock_bubble_interaction.py iplot=1
...
PLOTCLAW > 
    Reading  Frame 4 at t = 0.24  from outdir = /Users/rjl/Downloads/clawpack-v5.10.0pyclaw/pyclaw/examples/euler_2d/_output
    Plotting Frame 4 at t = 0.24
PLOTCLAW > q
quitting...
$ 

Is there something different I should try?

[mandli]

Is the plot window in the forefront? If the terminal receives the q input it behaves normally. I see the following when the plot window receives the q.

Interactive plotting...
Type ? at IPLOT prompt for list of commands

    Start at which frame [default=0] ?
    Reading  Frame 0 at t = 0  from outdir = /Users/kmandli/Documents/src/clawpack/geoclaw/examples/tsunami/chile2010/_output
    Plotting Frame 0 at t = 0.0
PLOTCLAW >
    Reading  Frame 1 at t = 1800  from outdir = /Users/kmandli/Documents/src/clawpack/geoclaw/examples/tsunami/chile2010/_output
    Plotting Frame 1 at t = 1800.0
PLOTCLAW >
    Reading  Frame 2 at t = 3600  from outdir = /Users/kmandli/Documents/src/clawpack/geoclaw/examples/tsunami/chile2010/_output
    Plotting Frame 2 at t = 3600.0
PLOTCLAW >
quitting...
PLOTCLAW > q
quitting...

The second q is sent to the terminal.