Source code for

# -*- coding: utf-8 -*-
import json

from .default import Default

[docs]def get_dump_kwargs(minify=True, no_nulls=True, **kwargs): """ Return dict of kwargs for :py:func:`json.dump` or :py:func:`json.dumps`. :param bool minify: Use no spaces between separators (True) :param bool no_nulls: Omit null values and empty sequences/mappings (True) """ if minify: kwargs["separators"] = (',', ':') kwargs["default"] = Default(omit_nulls=no_nulls) return kwargs
[docs]def _write_json(obj, filename, omit_nulls=False, pretty_print=True, **kwargs): """ Write object to a file in JSON format :type obj: :mod:`~obspy.core.event` class object :param obj: The ObsPy Event-type object to write. :type filename: str or file :param filename: Filename to write or open file-like object. :type omit_nulls: bool :param omit_nulls: Don't include empty-valued attributes :type pretty_print: bool :param pretty_print: Indent for readability .. note:: This function is registered via the :meth:`~obspy.core.event.Catalog.write` method of an ObsPy :class:`~obspy.core.event.Catalog` object, but is also valid for any obspy event-type object (or any serializable python object that contains an obspy event-type object) """ try: # Open filehandler or use an existing file like object. if not hasattr(filename, "write"): file_opened = True fh = open(filename, "wt") else: file_opened = False fh = filename default = Default(omit_nulls=omit_nulls) if pretty_print: kwargs.setdefault('indent', 2) json_string = str(json.dumps(obj, default=default, **kwargs)) fh.write(json_string) finally: # Close if a file has been opened by this function. if file_opened is True: fh.close()