catch all curses addwstr() errors and print a helpful error message

[ericaltendorf]

catch all curses addwstr() errors and print a helpful error message

[altendky]

I haven't worked with curses, so maybe this doesn't apply. With Qt you have lots of callbacks for handling events. For every one of them I wanted an error handler that would pop up a dialog with (otherwise) uncaught exceptions. Rather than strewing that handling into every callback I used sys.excepthook to provide a universal handler. Anyways, it may not work here, it may cause other troubles, so... just mentioning. (presumably I won't do this as I shift towards structured concurrency what with moving towards QTrio)

[egtalbot]

I'll just add more data here. I ran into this when running in Terminal Window in Ubuntu and switching off the plotting machine in my HDMI switcher, plotman crashes when a plot ends (sorry for the lack of line breaks, this is how it pasted):

Traceback (most recent call last): File "/home/satan/programs/chia-blockchain/venv/bin/plotman", line 8, in <module> sys.exit(main()) File "/home/satan/programs/chia-blockchain/venv/lib/python3.8/site-packages/plotman/plotman.py", line 132, in main interactive.run_interactive() File "/home/satan/programs/chia-blockchain/venv/lib/python3.8/site-packages/plotman/interactive.py", line 360, in run_interactive curses.wrapper(curses_main) File "/usr/lib/python3.8/curses/__init__.py", line 105, in wrapper return func(stdscr, *args, **kwds) File "/home/satan/programs/chia-blockchain/venv/lib/python3.8/site-packages/plotman/interactive.py", line 278, in curses_main jobs_win.addstr(0, 0, reporting.status_report(jobs, n_cols, jobs_h, _curses.error: addwstr() returned ERR

[g4m3r0]

I do get the same error running plotman interactive if the size of the console window is to small:

(venv) ubuntu@ubuntu-PowerEdge-T310:~/git/chia-blockchain$ plotman interactive
Traceback (most recent call last):
File "/home/ubuntu/git/chia-blockchain/venv/bin/plotman", line 8, in
sys.exit(main())
File "/home/ubuntu/git/chia-blockchain/venv/lib/python3.8/site-packages/plotman/plotman.py", line 171, in main
interactive.run_interactive()
File "/home/ubuntu/git/chia-blockchain/venv/lib/python3.8/site-packages/plotman/interactive.py", line 353, in run_interactive
curses.wrapper(curses_main)
File "/usr/lib/python3.8/curses/init.py", line 105, in wrapper
return func(stdscr, *args, **kwds)
File "/home/ubuntu/git/chia-blockchain/venv/lib/python3.8/site-packages/plotman/interactive.py", line 271, in curses_main
jobs_win.addstr(0, 0, reporting.status_report(jobs, n_cols, jobs_h,
_curses.error: addwstr() returned ERR

[Klaudioz]

I just maximized the terminal, run it again and it worked.