本文整理汇总了Python中pandas.compat.BytesIO.getvalue方法的典型用法代码示例。如果您正苦于以下问题：Python BytesIO.getvalue方法的具体用法？Python BytesIO.getvalue怎么用？Python BytesIO.getvalue使用的例子？那么恭喜您, 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.compat.BytesIO的用法示例。
在下文中一共展示了BytesIO.getvalue方法的3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: _pickle_array
# 需要导入模块: from pandas.compat import BytesIO [as 别名]
# 或者: from pandas.compat.BytesIO import getvalue [as 别名]
def _pickle_array(arr):
arr = arr.view(np.ndarray)
buf = BytesIO()
write_array(buf, arr)
return buf.getvalue()示例2: compserver
# 需要导入模块: from pandas.compat import BytesIO [as 别名]
# 或者: from pandas.compat.BytesIO import getvalue [as 别名]
def compserver(payload, serial):
(allow_profiler,
default_profiler_output,
profile_by_default) = _get_profiler_info()
requested_profiler_output = payload.get('profiler_output',
default_profiler_output)
profile = payload.get('profile')
profiling = (allow_profiler and
(profile or (profile_by_default and requested_profiler_output)))
if profile and not allow_profiler:
return ('profiling is disabled on this server', RC.FORBIDDEN)
with ExitStack() as response_construction_context_stack:
if profiling:
from cProfile import Profile
if (default_profiler_output == ':response' and
requested_profiler_output != ':response'):
# writing to the local filesystem is disabled
return ("local filepaths are disabled on this server, only"
" ':response' is allowed for the 'profiler_output' field",
RC.FORBIDDEN)
profiler_output = requested_profiler_output
profiler = Profile()
profiler.enable()
# ensure that we stop profiling in the case of an exception
response_construction_context_stack.callback(profiler.disable)
expr = '<failed to parse expr>'
@response_construction_context_stack.callback
def log_time(start=time()):
flask.current_app.logger.info('compute expr: %s\ntotal time (s): %.3f',
expr,
time() - start)
ns = payload.get('namespace', {})
compute_kwargs = payload.get('compute_kwargs') or {}
odo_kwargs = payload.get('odo_kwargs') or {}
dataset = _get_data()
ns[':leaf'] = symbol('leaf', discover(dataset))
expr = from_tree(payload['expr'], namespace=ns)
assert len(expr._leaves()) == 1
leaf = expr._leaves()[0]
try:
result = serial.materialize(compute(expr,
{leaf: dataset},
**compute_kwargs),
expr.dshape,
odo_kwargs)
except NotImplementedError as e:
return ("Computation not supported:\n%s" % e, RC.NOT_IMPLEMENTED)
except Exception as e:
return ("Computation failed with message:\n%s: %s" % (type(e).__name__, e),
RC.INTERNAL_SERVER_ERROR)
response = {'datashape': pprint(expr.dshape, width=0),
'data': serial.data_dumps(result),
'names': expr.fields}
if profiling:
import marshal
from pstats import Stats
if profiler_output == ':response':
from pandas.compat import BytesIO
file = BytesIO()
else:
file = open(_prof_path(profiler_output, expr), 'wb')
with file:
# Use marshal to dump the stats data to the given file.
# This is taken from cProfile which unfortunately does not have
# an api that allows us to pass the file object directly, only
# a file path.
marshal.dump(Stats(profiler).stats, file)
if profiler_output == ':response':
response['profiler_output'] = {'__!bytes': file.getvalue()}
return serial.dumps(response)示例3: compserver
# 需要导入模块: from pandas.compat import BytesIO [as 别名]
# 或者: from pandas.compat.BytesIO import getvalue [as 别名]
#.........这里部分代码省略.........
expected_keys),
RC.BAD_REQUEST)
app = flask.current_app
(allow_profiler,
default_profiler_output,
profile_by_default) = _get_profiler_info()
requested_profiler_output = payload.get(u'profiler_output',
default_profiler_output)
profile = payload.get(u'profile')
profiling = (allow_profiler and
(profile or (profile_by_default and requested_profiler_output)))
if profile and not allow_profiler:
return ('profiling is disabled on this server', RC.FORBIDDEN)
with ExitStack() as response_construction_context_stack:
if profiling:
from cProfile import Profile
if (default_profiler_output == ':response' and
requested_profiler_output != ':response'):
# writing to the local filesystem is disabled
return ("local filepaths are disabled on this server, only"
" ':response' is allowed for the 'profiler_output' field",
RC.FORBIDDEN)
profiler_output = requested_profiler_output
profiler = Profile()
profiler.enable()
# ensure that we stop profiling in the case of an exception
response_construction_context_stack.callback(profiler.disable)
expr = '<failed to parse expr>'
@response_construction_context_stack.callback
def log_time(start=time()):
app.logger.info('compute expr: %s\ntotal time (s): %.3f',
expr,
time() - start)
ns = payload.get(u'namespace', {})
compute_kwargs = payload.get(u'compute_kwargs') or {}
odo_kwargs = payload.get(u'odo_kwargs') or {}
dataset = _get_data()
ns[':leaf'] = symbol('leaf', discover(dataset))
expr = from_tree(payload[u'expr'], namespace=ns)
if len(expr._leaves()) != 1:
return ('too many leaves, expected 1 got %d' % len(expr._leaves()),
RC.BAD_REQUEST)
leaf = expr._leaves()[0]
formatter = getattr(flask.current_app, 'log_exception_formatter',
_default_log_exception_formatter)
try:
result = serial.materialize(compute(expr,
{leaf: dataset},
**compute_kwargs),
expr.dshape,
odo_kwargs)
except NotImplementedError as e:
# Note: `sys.exc_info()[2]` holds the current traceback, for
# Python 2 / 3 compatibility. It's important not to store a local
# reference to it.
formatted_tb = formatter(sys.exc_info()[2])
error_msg = "Computation not supported:\n%s\n%s" % (e, formatted_tb)
app.logger.error(error_msg)
return (error_msg, RC.NOT_IMPLEMENTED)
except Exception as e:
formatted_tb = formatter(sys.exc_info()[2])
error_msg = "Computation failed with message:\n%s: %s\n%s" % (type(e).__name__, e, formatted_tb)
app.logger.error(error_msg)
return (error_msg, RC.INTERNAL_SERVER_ERROR)
response = {u'datashape': pprint(expr.dshape, width=0),
u'data': serial.data_dumps(result),
u'names': expr.fields}
if profiling:
import marshal
from pstats import Stats
if profiler_output == ':response':
from pandas.compat import BytesIO
file = BytesIO()
else:
file = open(_prof_path(profiler_output, expr), 'wb')
with file:
# Use marshal to dump the stats data to the given file.
# This is taken from cProfile which unfortunately does not have
# an api that allows us to pass the file object directly, only
# a file path.
marshal.dump(Stats(profiler).stats, file)
if profiler_output == ':response':
response[u'profiler_output'] = {'__!bytes': file.getvalue()}
return serial.dumps(response)