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"""Beautiful and helpful exceptions
Just set your `BETTER_EXCEPTIONS` environment variable. It handles the rest.
Name: better_exceptions
Author: Josh Junon
Email: josh@junon.me
URL: github.com/qix-/better-exceptions
License: Copyright (c) 2017 Josh Junon, licensed under the MIT license
"""
from __future__ import absolute_import
from __future__ import print_function
import logging
import sys
from .formatter import THEME, MAX_LENGTH, PIPE_CHAR, CAP_CHAR, ExceptionFormatter
from .color import SUPPORTS_COLOR, SHOULD_ENCODE, STREAM, to_byte
from .log import BetExcLogger, patch as patch_logging
from .repl import interact, get_repl
__version__ = '0.4.0'
THEME = THEME.copy() # Users customizing the theme should not impact core
def write_stream(data, stream=STREAM):
if SHOULD_ENCODE:
data = to_byte(data)
stream.buffer.write(data)
else:
stream.write(data)
def format_exception(exc, value, tb):
# Rebuild each time to take into account any changes made by the user to the global parameters
formatter = ExceptionFormatter(colored=SUPPORTS_COLOR, theme=THEME, max_length=MAX_LENGTH,
pipe_char=PIPE_CHAR, cap_char=CAP_CHAR)
return list(formatter.format_exception(exc, value, tb))
def excepthook(exc, value, tb):
formatted = u''.join(format_exception(exc, value, tb))
write_stream(formatted, STREAM)
def hook():
sys.excepthook = excepthook
logging.setLoggerClass(BetExcLogger)
patch_logging()
if hasattr(sys, 'ps1'):
print('WARNING: better_exceptions will only inspect code from the command line\n'
' when using: `python -m better_exceptions\'. Otherwise, only code\n'
' loaded from files will be inspected!', file=sys.stderr)
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