本文整理汇总了Python中pandas.DataFrame.to_json方法的典型用法代码示例。如果您正苦于以下问题：Python DataFrame.to_json方法的具体用法？Python DataFrame.to_json怎么用？Python DataFrame.to_json使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pandas.DataFrame的用法示例。
在下文中一共展示了DataFrame.to_json方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: to_json
# 需要导入模块: from pandas import DataFrame [as 别名]
# 或者: from pandas.DataFrame import to_json [as 别名]
def to_json(path_or_buf, obj, orient=None, date_format='epoch',
double_precision=10, force_ascii=True, date_unit='ms',
default_handler=None, lines=False):
path_or_buf = _stringify_path(path_or_buf)
if lines and orient != 'records':
raise ValueError(
"'lines' keyword only valid when 'orient' is records")
if orient == 'table' and isinstance(obj, Series):
obj = obj.to_frame(name=obj.name or 'values')
if orient == 'table' and isinstance(obj, DataFrame):
writer = JSONTableWriter
elif isinstance(obj, Series):
writer = SeriesWriter
elif isinstance(obj, DataFrame):
writer = FrameWriter
else:
raise NotImplementedError("'obj' should be a Series or a DataFrame")
s = writer(
obj, orient=orient, date_format=date_format,
double_precision=double_precision, ensure_ascii=force_ascii,
date_unit=date_unit, default_handler=default_handler).write()
if lines:
s = _convert_to_line_delimits(s)
if isinstance(path_or_buf, compat.string_types):
with open(path_or_buf, 'w') as fh:
fh.write(s)
elif path_or_buf is None:
return s
else:
path_or_buf.write(s) 示例2: to_json
# 需要导入模块: from pandas import DataFrame [as 别名]
# 或者: from pandas.DataFrame import to_json [as 别名]
def to_json(path_or_buf, obj, orient=None, date_format='epoch',
double_precision=10, force_ascii=True, date_unit='ms',
default_handler=None, lines=False, compression=None):
path_or_buf = _stringify_path(path_or_buf)
if lines and orient != 'records':
raise ValueError(
"'lines' keyword only valid when 'orient' is records")
if orient == 'table' and isinstance(obj, Series):
obj = obj.to_frame(name=obj.name or 'values')
if orient == 'table' and isinstance(obj, DataFrame):
writer = JSONTableWriter
elif isinstance(obj, Series):
writer = SeriesWriter
elif isinstance(obj, DataFrame):
writer = FrameWriter
else:
raise NotImplementedError("'obj' should be a Series or a DataFrame")
s = writer(
obj, orient=orient, date_format=date_format,
double_precision=double_precision, ensure_ascii=force_ascii,
date_unit=date_unit, default_handler=default_handler).write()
if lines:
s = _convert_to_line_delimits(s)
if isinstance(path_or_buf, compat.string_types):
fh, handles = _get_handle(path_or_buf, 'w', compression=compression)
try:
fh.write(s)
finally:
fh.close()
elif path_or_buf is None:
return s
else:
path_or_buf.write(s) 示例3: to_json
# 需要导入模块: from pandas import DataFrame [as 别名]
# 或者: from pandas.DataFrame import to_json [as 别名]
def to_json(path_or_buf, obj, orient=None, date_format='epoch',
double_precision=10, force_ascii=True, date_unit='ms',
default_handler=None, lines=False, compression='infer',
index=True):
if not index and orient not in ['split', 'table']:
raise ValueError("'index=False' is only valid when 'orient' is "
"'split' or 'table'")
path_or_buf = _stringify_path(path_or_buf)
if lines and orient != 'records':
raise ValueError(
"'lines' keyword only valid when 'orient' is records")
if orient == 'table' and isinstance(obj, Series):
obj = obj.to_frame(name=obj.name or 'values')
if orient == 'table' and isinstance(obj, DataFrame):
writer = JSONTableWriter
elif isinstance(obj, Series):
writer = SeriesWriter
elif isinstance(obj, DataFrame):
writer = FrameWriter
else:
raise NotImplementedError("'obj' should be a Series or a DataFrame")
s = writer(
obj, orient=orient, date_format=date_format,
double_precision=double_precision, ensure_ascii=force_ascii,
date_unit=date_unit, default_handler=default_handler,
index=index).write()
if lines:
s = _convert_to_line_delimits(s)
if isinstance(path_or_buf, compat.string_types):
fh, handles = _get_handle(path_or_buf, 'w', compression=compression)
try:
fh.write(s)
finally:
fh.close()
elif path_or_buf is None:
return s
else:
path_or_buf.write(s) 示例4: to_json
# 需要导入模块: from pandas import DataFrame [as 别名]
# 或者: from pandas.DataFrame import to_json [as 别名]
def to_json(path_or_buf, obj, orient=None, date_format='epoch',
double_precision=10, force_ascii=True, date_unit='ms',
default_handler=None, lines=False, compression=None,
index=True):
if not index and orient not in ['split', 'table']:
raise ValueError("'index=False' is only valid when 'orient' is "
"'split' or 'table'")
path_or_buf = _stringify_path(path_or_buf)
if lines and orient != 'records':
raise ValueError(
"'lines' keyword only valid when 'orient' is records")
if orient == 'table' and isinstance(obj, Series):
obj = obj.to_frame(name=obj.name or 'values')
if orient == 'table' and isinstance(obj, DataFrame):
writer = JSONTableWriter
elif isinstance(obj, Series):
writer = SeriesWriter
elif isinstance(obj, DataFrame):
writer = FrameWriter
else:
raise NotImplementedError("'obj' should be a Series or a DataFrame")
s = writer(
obj, orient=orient, date_format=date_format,
double_precision=double_precision, ensure_ascii=force_ascii,
date_unit=date_unit, default_handler=default_handler,
index=index).write()
if lines:
s = _convert_to_line_delimits(s)
if isinstance(path_or_buf, compat.string_types):
fh, handles = _get_handle(path_or_buf, 'w', compression=compression)
try:
fh.write(s)
finally:
fh.close()
elif path_or_buf is None:
return s
else:
path_or_buf.write(s)