diff options
Diffstat (limited to 'Doc/library/json.rst')
| -rw-r--r-- | Doc/library/json.rst | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/Doc/library/json.rst b/Doc/library/json.rst index 433f948..faa7ac9 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -42,8 +42,7 @@ Compact encoding:: Pretty printing:: >>> import json - >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True, - ... indent=4, separators=(',', ': '))) + >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4)) { "4": 5, "6": 7 @@ -158,15 +157,13 @@ Basic Usage .. versionchanged:: 3.2 Allow strings for *indent* in addition to integers. - .. note:: - - Since the default item separator is ``', '``, the output might include - trailing whitespace when *indent* is specified. You can use - ``separators=(',', ': ')`` to avoid this. + If specified, *separators* should be an ``(item_separator, key_separator)`` + tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and + ``(',', ': ')`` otherwise. To get the most compact JSON representation, + you should specify ``(',', ':')`` to eliminate whitespace. - If *separators* is an ``(item_separator, dict_separator)`` tuple, then it - will be used instead of the default ``(', ', ': ')`` separators. ``(',', - ':')`` is the most compact JSON representation. + .. versionchanged:: 3.4 + Use ``(',', ': ')`` as default if *indent* is not ``None``. *default(obj)* is a function that should return a serializable version of *obj* or raise :exc:`TypeError`. The default simply raises :exc:`TypeError`. @@ -408,15 +405,13 @@ Encoders and Decoders .. versionchanged:: 3.2 Allow strings for *indent* in addition to integers. - .. note:: - - Since the default item separator is ``', '``, the output might include - trailing whitespace when *indent* is specified. You can use - ``separators=(',', ': ')`` to avoid this. - If specified, *separators* should be an ``(item_separator, key_separator)`` - tuple. The default is ``(', ', ': ')``. To get the most compact JSON - representation, you should specify ``(',', ':')`` to eliminate whitespace. + tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and + ``(',', ': ')`` otherwise. To get the most compact JSON representation, + you should specify ``(',', ':')`` to eliminate whitespace. + + .. versionchanged:: 3.4 + Use ``(',', ': ')`` as default if *indent* is not ``None``. If specified, *default* is a function that gets called for objects that can't otherwise be serialized. It should return a JSON encodable version of the |