[Python-checkins] cpython (merge 3.4 -> 3.5): Merged cookbook update from 3.4.
vinay.sajip
python-checkins at python.org
Sat Oct 17 08:59:57 EDT 2015
https://hg.python.org/cpython/rev/a1c01f1209e3
changeset: 98777:a1c01f1209e3
branch: 3.5
parent: 98768:bcee1364e2dc
parent: 98776:f0aa828c8378
user: Vinay Sajip <vinay_sajip at yahoo.co.uk>
date: Sat Oct 17 13:59:12 2015 +0100
summary:
Merged cookbook update from 3.4.
files:
Doc/howto/logging-cookbook.rst | 66 ++++++++++++++++++++++
1 files changed, 66 insertions(+), 0 deletions(-)
diff --git a/Doc/howto/logging-cookbook.rst b/Doc/howto/logging-cookbook.rst
--- a/Doc/howto/logging-cookbook.rst
+++ b/Doc/howto/logging-cookbook.rst
@@ -2288,3 +2288,69 @@
@log_if_errors(logger)
def foo(fail=False):
...
+
+
+.. _utc-formatting:
+
+Formatting times using UTC (GMT) via configuration
+--------------------------------------------------
+
+Sometimes you want to format times using UTC, which can be done using a class
+such as `UTCFormatter`, shown below::
+
+ import logging
+ import time
+
+ class UTCFormatter(logging.Formatter):
+ converter = time.gmtime
+
+and you can then use the `UTCFormatter` in your code instead of
+:class:`~logging.Formatter`. If you want to do that via configuration, you can
+use the :func:`~logging.config.dictConfig` API with an approach illustrated by
+the following complete example::
+
+ import logging
+ import logging.config
+ import time
+
+ class UTCFormatter(logging.Formatter):
+ converter = time.gmtime
+
+ LOGGING = {
+ 'version': 1,
+ 'disable_existing_loggers': False,
+ 'formatters': {
+ 'utc': {
+ '()': UTCFormatter,
+ 'format': '%(asctime)s %(message)s',
+ },
+ 'local': {
+ 'format': '%(asctime)s %(message)s',
+ }
+ },
+ 'handlers': {
+ 'console1': {
+ 'class': 'logging.StreamHandler',
+ 'formatter': 'utc',
+ },
+ 'console2': {
+ 'class': 'logging.StreamHandler',
+ 'formatter': 'local',
+ },
+ },
+ 'root': {
+ 'handlers': ['console1', 'console2'],
+ }
+ }
+
+ if __name__ == '__main__':
+ logging.config.dictConfig(LOGGING)
+ logging.warning('The local time is %s', time.asctime())
+
+When this script is run, it should print something like::
+
+ 2015-10-17 12:53:29,501 The local time is Sat Oct 17 13:53:29 2015
+ 2015-10-17 13:53:29,501 The local time is Sat Oct 17 13:53:29 2015
+
+showing how the time is formatted both as local time and UTC, one for each
+handler.
--
Repository URL: https://hg.python.org/cpython
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