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"""Div. Utilities."""
from __future__ import annotations
import sys
from .encoding import default_encode
def emergency_dump_state(state, open_file=open, dump=None, stderr=None):
"""Dump message state to stdout or file."""
from pprint import pformat
from tempfile import mktemp
stderr = sys.stderr if stderr is None else stderr
if dump is None:
import pickle
dump = pickle.dump
persist = mktemp()
print(f'EMERGENCY DUMP STATE TO FILE -> {persist} <-',
file=stderr)
fh = open_file(persist, 'w')
try:
try:
dump(state, fh, protocol=0)
except Exception as exc:
print(
f'Cannot pickle state: {exc!r}. Fallback to pformat.',
file=stderr,
)
fh.write(default_encode(pformat(state)))
finally:
fh.flush()
fh.close()
return persist
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