/usr/lib/python2.7/curses/wrapper.py is in libpython2.7-stdlib 2.7.6-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | """curses.wrapper
Contains one function, wrapper(), which runs another function which
should be the rest of your curses-based application. If the
application raises an exception, wrapper() will restore the terminal
to a sane state so you can read the resulting traceback.
"""
import curses
def wrapper(func, *args, **kwds):
"""Wrapper function that initializes curses and calls another function,
restoring normal keyboard/screen behavior on error.
The callable object 'func' is then passed the main window 'stdscr'
as its first argument, followed by any other arguments passed to
wrapper().
"""
try:
# Initialize curses
stdscr = curses.initscr()
# Turn off echoing of keys, and enter cbreak mode,
# where no buffering is performed on keyboard input
curses.noecho()
curses.cbreak()
# In keypad mode, escape sequences for special keys
# (like the cursor keys) will be interpreted and
# a special value like curses.KEY_LEFT will be returned
stdscr.keypad(1)
# Start color, too. Harmless if the terminal doesn't have
# color; user can test with has_color() later on. The try/catch
# works around a minor bit of over-conscientiousness in the curses
# module -- the error return from C start_color() is ignorable.
try:
curses.start_color()
except:
pass
return func(stdscr, *args, **kwds)
finally:
# Set everything back to normal
if 'stdscr' in locals():
stdscr.keypad(0)
curses.echo()
curses.nocbreak()
curses.endwin()
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