Giampaolo Rodola giampaolo

## register_exit_fun.py
"""
People erroneously think that any function registered via atexit.register()
will be executed on interpreter exit.
This is not always true. For example, in case of SIGTERM:

    import atexit, os, signal

    @atexit.register
    def cleanup():
        print("on exit")  # XXX this never gets printed

## is_connection_err.py
"""
Blog post:
https://gmpy.dev/blog/2023/recognize-connection-errors
"""

import errno, socket, ssl

# Network errors, usually related to DHCP or wpa_supplicant (Wi-Fi).
NETWORK_ERRNOS = frozenset((
    errno.ENETUNREACH,  # "Network is unreachable"
	"""
	People erroneously think that any function registered via atexit.register()
	will be executed on interpreter exit.
	This is not always true. For example, in case of SIGTERM:

	import atexit, os, signal

	@atexit.register
	def cleanup():
	print("on exit") # XXX this never gets printed
	"""
	Blog post:
	https://gmpy.dev/blog/2023/recognize-connection-errors
	"""

	import errno, socket, ssl

	# Network errors, usually related to DHCP or wpa_supplicant (Wi-Fi).
	NETWORK_ERRNOS = frozenset((
	errno.ENETUNREACH, # "Network is unreachable"