diff options
author | sotech117 <michael_foiani@brown.edu> | 2025-07-31 17:27:24 -0400 |
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committer | sotech117 <michael_foiani@brown.edu> | 2025-07-31 17:27:24 -0400 |
commit | 5bf22fc7e3c392c8bd44315ca2d06d7dca7d084e (patch) | |
tree | 8dacb0f195df1c0788d36dd0064f6bbaa3143ede /venv/lib/python3.8/site-packages/flask/logging.py | |
parent | b832d364da8c2efe09e3f75828caf73c50d01ce3 (diff) |
add code for analysis of data
Diffstat (limited to 'venv/lib/python3.8/site-packages/flask/logging.py')
-rw-r--r-- | venv/lib/python3.8/site-packages/flask/logging.py | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/venv/lib/python3.8/site-packages/flask/logging.py b/venv/lib/python3.8/site-packages/flask/logging.py new file mode 100644 index 0000000..0cb8f43 --- /dev/null +++ b/venv/lib/python3.8/site-packages/flask/logging.py @@ -0,0 +1,79 @@ +from __future__ import annotations + +import logging +import sys +import typing as t + +from werkzeug.local import LocalProxy + +from .globals import request + +if t.TYPE_CHECKING: # pragma: no cover + from .sansio.app import App + + +@LocalProxy +def wsgi_errors_stream() -> t.TextIO: + """Find the most appropriate error stream for the application. If a request + is active, log to ``wsgi.errors``, otherwise use ``sys.stderr``. + + If you configure your own :class:`logging.StreamHandler`, you may want to + use this for the stream. If you are using file or dict configuration and + can't import this directly, you can refer to it as + ``ext://flask.logging.wsgi_errors_stream``. + """ + if request: + return request.environ["wsgi.errors"] # type: ignore[no-any-return] + + return sys.stderr + + +def has_level_handler(logger: logging.Logger) -> bool: + """Check if there is a handler in the logging chain that will handle the + given logger's :meth:`effective level <~logging.Logger.getEffectiveLevel>`. + """ + level = logger.getEffectiveLevel() + current = logger + + while current: + if any(handler.level <= level for handler in current.handlers): + return True + + if not current.propagate: + break + + current = current.parent # type: ignore + + return False + + +#: Log messages to :func:`~flask.logging.wsgi_errors_stream` with the format +#: ``[%(asctime)s] %(levelname)s in %(module)s: %(message)s``. +default_handler = logging.StreamHandler(wsgi_errors_stream) # type: ignore +default_handler.setFormatter( + logging.Formatter("[%(asctime)s] %(levelname)s in %(module)s: %(message)s") +) + + +def create_logger(app: App) -> logging.Logger: + """Get the Flask app's logger and configure it if needed. + + The logger name will be the same as + :attr:`app.import_name <flask.Flask.name>`. + + When :attr:`~flask.Flask.debug` is enabled, set the logger level to + :data:`logging.DEBUG` if it is not set. + + If there is no handler for the logger's effective level, add a + :class:`~logging.StreamHandler` for + :func:`~flask.logging.wsgi_errors_stream` with a basic format. + """ + logger = logging.getLogger(app.name) + + if app.debug and not logger.level: + logger.setLevel(logging.DEBUG) + + if not has_level_handler(logger): + logger.addHandler(default_handler) + + return logger |