miso-belica / diagnostics

Alternative to Python's module `cgitb` with template inspired by http://nette.org/ and https://www.djangoproject.com/

Diagnostics

Module for logging of detailed traceback as HTML page. Unexpected exceptions are catched and logged for further audit. Exceptions in diagnostic's exception handler are properly handled and logged (but formatted only as standard Python traceback). Usage is simple as code below.

from diagnostics import exception_hook

if __name__ == '__main__':
    # you have to create "log/" directory next to file that is your main module
    exception_hook.enable()

from diagnostics import exception_hook
from diagnostics.storages import FileStorage

if __name__ == '__main__':
    # or simply set your own storage
    directory_path = "/path/to/your/log/directory/with/html/tracebacks"
    exception_hook.enable(storage=FileStorage(directory_path))

from diagnostics import exception_hook

if __name__ == '__main__':
    with exception_hook:
        try_do_risky_job(...)

There is even support for logging in diagnostics. Class diagnostics.logging.FileHandler creates files with detailed traceback and log messages are appended to the file info.log in directory with logged tracebacks.

import logging

from diagnostics import exception_hook
from diagnostics.logging import FileHandler

if __name__ == '__main__':
    file_path = "/path/to/log/directory/with/html/tracebacks/info.log"
    log_handler = FileHandler(file_path)
    exception_hook.enable_for_logger(logging.getLogger(), handler=log_handler)

    try:
        try_do_risky_job(...)
    except:
        logging.exception("Risky job failed")

import logging

from diagnostics import exception_hook
from diagnostics.logging import FileHandler

if __name__ == '__main__':
    file_path = "/path/to/log/directory/with/html/tracebacks/info.log"
    log_handler = FileHandler(file_path)
    exception_hook.enable_for_logger("example_logger", handler=log_handler)

    try:
        try_do_risky_job(...)
    except:
        logger = logging.getLogger("example_logger")
        logger.error("Error occured", exc_info=True)

Installation

From PyPI

pip install diagnostics

or from git repo

pip install git+git://github.com/miso-belica/diagnostics.git

Tests

Run tests via

$ nosetests-2.6 && nosetests-3.2 && nosetests-2.7 && nosetests-3.3