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Easily handle JSON contained within strings. Includes a command-line tool to format JSON within the input, similar to the builtin json.tool.
jsonfinder
lets you find and extract JSON objects and arrays embedded within a string using a simple iterator. For example::
>>> s = 'jack [1,2,3] john'
>>> for start, end, obj in jsonfinder(s):
... print start, ':', end
... if obj is None:
... print 'String:', repr(s[start:end])
... else:
... print 'List of length', len(obj)
0 : 5
String: 'jack '
5 : 12
List of length 3
12 : 17
String: ' john'
>>> assert len(s) == end
Two other convenience methods are also provided: has_json
and only_json
::
>>> has_json('stuff {"key": "value"} things')
True
>>> has_json('stuff only')
False
>>> only_json('stuff {"key": "value"} things')[2]
{u'key': u'value'}
>>> only_json('stuff only')
Traceback (most recent call last):
...
ValueError: No JSON object found in argument.
>>> only_json('{}{}')
Traceback (most recent call last):
...
ValueError: More than one JSON object found in the argument.
All the methods allow a custom JSONDecoder to be passed in for flexibility.
The library also includes a command-line tool to format JSON and filter out parts of the input based on whether JSON is present.
It's like a more flexible version of python's built in json.tool
, a grep -v
for JSON, and more. For example::
$ cat cli_example.txt
This line contains no JSON and will be deleted by the --delete other-lines option.
On the other hand {"json": ["is", "formatted"] } and text surrounding it is preserved (but can also be removed if desired).
$ jsonfinder -i cli_example.txt --delete other-lines
On the other hand {
"json": [
"is",
"formatted"
]
} and text surrounding it is preserved (but can also be removed if desired).
$ jsonfinder -i cli_example.txt --delete other-lines | jsonfinder --delete context --format tiny
{"json":["is","formatted"]}
See the --help
option in the command-line for more details.
Installation is as simple as::
pip install jsonfinder
FAQs
Easily handle JSON contained within strings. Includes a command-line tool to format JSON within the input, similar to the builtin json.tool.
We found that jsonfinder demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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