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def transform (list, pattern, indices = [1]):
""" Matches all elements of 'list' agains the 'pattern' and returns a list of the elements indicated by indices of ... |
result = []
for e in list:
m = re.match (pattern, e)
if m:
for i in indices:
result.append (m.group (i))
return result |
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def replace(s, pattern, replacement):
"""Replaces occurrences of a match string in a given string and returns the new string. The match string can be a regex exp... |
# the replacement string may contain invalid backreferences (like \1 or \g)
# which will cause python's regex to blow up. Since this should emulate
# the jam version exactly and the jam version didn't support
# backreferences, this version shouldn't either. re.sub
# allows replacement to be a calla... |
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def replace_list(items, match, replacement):
"""Replaces occurrences of a match string in a given list of strings and returns a list of new strings. The match st... |
return [replace(item, match, replacement) for item in items] |
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def create(dataset, num_topics=10, initial_topics=None, alpha=None, beta=.1, num_iterations=10, num_burnin=5, associations=None, verbose=False, print_interval=10,... |
dataset = _check_input(dataset)
_check_categorical_option_type("method", method, ['auto', 'cgs', 'alias'])
if method == 'cgs' or method == 'auto':
model_name = 'cgs_topic_model'
else:
model_name = 'alias_topic_model'
# If associations are provided, check they are in the proper for... |
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def perplexity(test_data, predictions, topics, vocabulary):
""" Compute the perplexity of a set of test documents given a set of predicted topics. Let theta be t... |
test_data = _check_input(test_data)
assert isinstance(predictions, _SArray), \
"Predictions must be an SArray of vector type."
assert predictions.dtype == _array.array, \
"Predictions must be probabilities. Try using m.predict() with " + \
"output_type='probability'."
opts = {'... |
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def get_topics(self, topic_ids=None, num_words=5, cdf_cutoff=1.0, output_type='topic_probabilities'):
""" Get the words associated with a given topic. The score ... |
_check_categorical_option_type('output_type', output_type,
['topic_probabilities', 'topic_words'])
if topic_ids is None:
topic_ids = list(range(self._get('num_topics')))
assert isinstance(topic_ids, list), \
"The provided topic_ids is not a list."
... |
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def predict(self, dataset, output_type='assignment', num_burnin=None):
""" Use the model to predict topics for each document. The provided `dataset` should be an... |
dataset = _check_input(dataset)
if num_burnin is None:
num_burnin = self.num_burnin
opts = {'model': self.__proxy__,
'data': dataset,
'num_burnin': num_burnin}
response = _turicreate.extensions._text.topicmodel_predict(opts)
preds = ... |
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def evaluate(self, train_data, test_data=None, metric='perplexity'):
""" Estimate the model's ability to predict new data. Imagine you have a corpus of books. On... |
train_data = _check_input(train_data)
if test_data is None:
test_data = train_data
else:
test_data = _check_input(test_data)
predictions = self.predict(train_data, output_type='probability')
topics = self.topics
ret = {}
ret['perplexity... |
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def _raise_error_if_not_drawing_classifier_input_sframe( dataset, feature, target):
""" Performs some sanity checks on the SFrame provided as input to `turicreat... |
from turicreate.toolkits._internal_utils import _raise_error_if_not_sframe
_raise_error_if_not_sframe(dataset)
if feature not in dataset.column_names():
raise _ToolkitError("Feature column '%s' does not exist" % feature)
if target not in dataset.column_names():
raise _ToolkitError("Targ... |
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def _predict_with_probabilities(self, input_dataset, batch_size=None, verbose=True):
""" Predict with probabilities. The core prediction part that both `evaluate... |
from .._mxnet import _mxnet_utils
import mxnet as _mx
from ._sframe_loader import SFrameClassifierIter as _SFrameClassifierIter
is_stroke_input = (input_dataset[self.feature].dtype != _tc.Image)
dataset = _extensions._drawing_classifier_prepare_data(
input_data... |
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def predict(self, data, output_type='class', batch_size=None, verbose=True):
""" Predict on an SFrame or SArray of drawings, or on a single drawing. Parameters d... |
_tkutl._check_categorical_option_type("output_type", output_type,
["probability", "class", "probability_vector"])
if isinstance(data, _tc.SArray):
predicted = self._predict_with_probabilities(
_tc.SFrame({
self.feature: data
}... |
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def _BOW_FEATURE_EXTRACTOR(sf, target=None):
""" Return an SFrame containing a bag of words representation of each column. """ |
if isinstance(sf, dict):
out = _tc.SArray([sf]).unpack('')
elif isinstance(sf, _tc.SFrame):
out = sf.__copy__()
else:
raise ValueError("Unrecognized input to feature extractor.")
for f in _get_str_columns(out):
if target != f:
out[f] = _tc.text_analytics.coun... |
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def _get_str_columns(sf):
""" Returns a list of names of columns that are string type. """ |
return [name for name in sf.column_names() if sf[name].dtype == str] |
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def predict(self, dataset, output_type='class'):
""" Return predictions for ``dataset``, using the trained model. Parameters dataset : SFrame dataset of new obse... |
m = self.__proxy__['classifier']
target = self.__proxy__['target']
f = _BOW_FEATURE_EXTRACTOR
return m.predict(f(dataset, target), output_type=output_type) |
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def classify(self, dataset):
""" Return a classification, for each example in the ``dataset``, using the trained model. The output SFrame contains predictions as... |
m = self.__proxy__['classifier']
target = self.__proxy__['target']
f = _BOW_FEATURE_EXTRACTOR
return m.classify(f(dataset, target)) |
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def _generate_base_svm_regression_spec(model):
""" Takes an SVM regression model produces a starting spec using the parts. that are shared between all SVMs. """ |
if not(_HAS_SKLEARN):
raise RuntimeError('scikit-learn not found. scikit-learn conversion API is disabled.')
spec = _Model_pb2.Model()
spec.specificationVersion = SPECIFICATION_VERSION
svm = spec.supportVectorRegressor
_set_kernel(model, svm)
svm.rho = -model.intercept_[0]
for i ... |
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def _VerifyExtensionHandle(message, extension_handle):
"""Verify that the given extension handle is valid.""" |
if not isinstance(extension_handle, _FieldDescriptor):
raise KeyError('HasExtension() expects an extension handle, got: %s' %
extension_handle)
if not extension_handle.is_extension:
raise KeyError('"%s" is not an extension.' % extension_handle.full_name)
if not extension_handle.cont... |
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def _AddEnumValues(descriptor, cls):
"""Sets class-level attributes for all enum fields defined in this message. Also exporting a class-level object that can nam... |
for enum_type in descriptor.enum_types:
setattr(cls, enum_type.name, enum_type_wrapper.EnumTypeWrapper(enum_type))
for enum_value in enum_type.values:
setattr(cls, enum_value.name, enum_value.number) |
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def _DefaultValueConstructorForField(field):
"""Returns a function which returns a default value for a field. Args: field: FieldDescriptor object for this field.... |
if _IsMapField(field):
return _GetInitializeDefaultForMap(field)
if field.label == _FieldDescriptor.LABEL_REPEATED:
if field.has_default_value and field.default_value != []:
raise ValueError('Repeated field default value not empty list: %s' % (
field.default_value))
if field.cpp_type ... |
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def _ReraiseTypeErrorWithFieldName(message_name, field_name):
"""Re-raise the currently-handled TypeError with the field name added.""" |
exc = sys.exc_info()[1]
if len(exc.args) == 1 and type(exc) is TypeError:
# simple TypeError; add field name to exception message
exc = TypeError('%s for field %s.%s' % (str(exc), message_name, field_name))
# re-raise possibly-amended exception with original traceback:
six.reraise(type(exc), exc, sys.... |
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def _GetFieldByName(message_descriptor, field_name):
"""Returns a field descriptor by field name. Args: message_descriptor: A Descriptor describing all fields in... |
try:
return message_descriptor.fields_by_name[field_name]
except KeyError:
raise ValueError('Protocol message %s has no "%s" field.' %
(message_descriptor.name, field_name)) |
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def _AddPropertiesForNonRepeatedScalarField(field, cls):
"""Adds a public property for a nonrepeated, scalar protocol message field. Clients can use this propert... |
proto_field_name = field.name
property_name = _PropertyName(proto_field_name)
type_checker = type_checkers.GetTypeChecker(field)
default_value = field.default_value
valid_values = set()
is_proto3 = field.containing_type.syntax == "proto3"
def getter(self):
# TODO(protobuf-team): This may be broken s... |
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def _InternalUnpackAny(msg):
"""Unpacks Any message and returns the unpacked message. This internal method is different from public Any Unpack method which takes... |
# TODO(amauryfa): Don't use the factory of generated messages.
# To make Any work with custom factories, use the message factory of the
# parent message.
# pylint: disable=g-import-not-at-top
from google.protobuf import symbol_database
factory = symbol_database.Default()
type_url = msg.type_url
if no... |
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def _BytesForNonRepeatedElement(value, field_number, field_type):
"""Returns the number of bytes needed to serialize a non-repeated element. The returned byte co... |
try:
fn = type_checkers.TYPE_TO_BYTE_SIZE_FN[field_type]
return fn(field_number, value)
except KeyError:
raise message_mod.EncodeError('Unrecognized field type: %d' % field_type) |
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def _AddIsInitializedMethod(message_descriptor, cls):
"""Adds the IsInitialized and FindInitializationError methods to the protocol message class.""" |
required_fields = [field for field in message_descriptor.fields
if field.label == _FieldDescriptor.LABEL_REQUIRED]
def IsInitialized(self, errors=None):
"""Checks if all required fields of a message are set.
Args:
errors: A list which, if provided, will be populated wit... |
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def _AddMessageMethods(message_descriptor, cls):
"""Adds implementations of all Message methods to cls.""" |
_AddListFieldsMethod(message_descriptor, cls)
_AddHasFieldMethod(message_descriptor, cls)
_AddClearFieldMethod(message_descriptor, cls)
if message_descriptor.is_extendable:
_AddClearExtensionMethod(cls)
_AddHasExtensionMethod(cls)
_AddEqualsMethod(message_descriptor, cls)
_AddStrMethod(message_desc... |
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def _AddPrivateHelperMethods(message_descriptor, cls):
"""Adds implementation of private helper methods to cls.""" |
def Modified(self):
"""Sets the _cached_byte_size_dirty bit to true,
and propagates this to our listener iff this was a state change.
"""
# Note: Some callers check _cached_byte_size_dirty before calling
# _Modified() as an extra optimization. So, if this method is ever
# changed such... |
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def Modified(self):
"""Also updates the state of the containing oneof in the parent message.""" |
try:
self._parent_message_weakref._UpdateOneofState(self._field)
super(_OneofListener, self).Modified()
except ReferenceError:
pass |
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def Name(self, number):
"""Returns a string containing the name of an enum value.""" |
if number in self._enum_type.values_by_number:
return self._enum_type.values_by_number[number].name
raise ValueError('Enum %s has no name defined for value %d' % (
self._enum_type.name, number)) |
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def Value(self, name):
"""Returns the value coresponding to the given enum name.""" |
if name in self._enum_type.values_by_name:
return self._enum_type.values_by_name[name].number
raise ValueError('Enum %s has no value defined for name %s' % (
self._enum_type.name, name)) |
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def _load_tcmps_lib():
""" Load global singleton of tcmps lib handler. This function is used not used at the top level, so that the shared library is loaded lazi... |
global _g_TCMPS_LIB
if _g_TCMPS_LIB is None:
# This library requires macOS 10.14 or above
if _mac_ver() < (10, 14):
return None
# The symbols defined in libtcmps are now exposed directly by
# libunity_shared. Eventually the object_detector and
# activity_cla... |
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def mps_device_name():
""" Returns name of MPS device that will be used, else None. """ |
lib = _load_tcmps_lib()
if lib is None:
return None
n = 256
c_name = (_ctypes.c_char * n)()
ret = lib.TCMPSMetalDeviceName(_ctypes.byref(c_name), _ctypes.c_int32(n))
if ret == 0:
return _decode_bytes_to_native_string(c_name.value)
else:
return None |
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def mps_device_memory_limit():
""" Returns the memory size in bytes that can be effectively allocated on the MPS device that will be used, or None if no suitable... |
lib = _load_tcmps_lib()
if lib is None:
return None
c_size = _ctypes.c_uint64()
ret = lib.TCMPSMetalDeviceMemoryLimit(_ctypes.byref(c_size))
return c_size.value if ret == 0 else None |
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def shape(self):
"""Copy the shape from TCMPS as a new numpy ndarray.""" |
# Create C variables that will serve as out parameters for TCMPS.
shape_ptr = _ctypes.POINTER(_ctypes.c_size_t)() # size_t* shape_ptr
dim = _ctypes.c_size_t() # size_t dim
# Obtain pointer into memory owned by the C++ object self.handle.
status_code = ... |
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def asnumpy(self):
"""Copy the data from TCMPS into a new numpy ndarray""" |
# Create C variables that will serve as out parameters for TCMPS.
data_ptr = _ctypes.POINTER(_ctypes.c_float)() # float* data_ptr
shape_ptr = _ctypes.POINTER(_ctypes.c_size_t)() # size_t* shape_ptr
dim = _ctypes.c_size_t() # size_t dim
# Obtain poin... |
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def route_sns_task(event, context):
""" Gets SNS Message, deserialises the message, imports the function, calls the function with args """ |
record = event['Records'][0]
message = json.loads(
record['Sns']['Message']
)
return run_message(message) |
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def task(*args, **kwargs):
"""Async task decorator so that running Args: func (function):
the function to be wrapped Further requirements: func must be an indep... |
func = None
if len(args) == 1 and callable(args[0]):
func = args[0]
if not kwargs: # Default Values
service = 'lambda'
lambda_function_name_arg = None
aws_region_arg = None
else: # Arguments were passed
service = kwargs.get('service', 'lambda')
lambd... |
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def get_func_task_path(func):
""" Format the modular task path for a function via inspection. """ |
module_path = inspect.getmodule(func).__name__
task_path = '{module_path}.{func_name}'.format(
module_path=module_path,
func_name=func.__name__
)
return task_path |
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def get_async_response(response_id):
""" Get the response from the async table """ |
response = DYNAMODB_CLIENT.get_item(
TableName=ASYNC_RESPONSE_TABLE,
Key={'id': {'S': str(response_id)}}
)
if 'Item' not in response:
return None
return {
'status': response['Item']['async_status']['S'],
'response': json.loads(response['Item']['async_response'][... |
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def send(self, task_path, args, kwargs):
""" Create the message object and pass it to the actual sender. """ |
message = {
'task_path': task_path,
'capture_response': self.capture_response,
'response_id': self.response_id,
'args': args,
'kwargs': kwargs
}
self._send(message)
return self |
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def _send(self, message):
""" Given a message, directly invoke the lamdba function for this task. """ |
message['command'] = 'zappa.asynchronous.route_lambda_task'
payload = json.dumps(message).encode('utf-8')
if len(payload) > LAMBDA_ASYNC_PAYLOAD_LIMIT: # pragma: no cover
raise AsyncException("Payload too large for async Lambda call")
self.response = self.client.invoke(
... |
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def _send(self, message):
""" Given a message, publish to this topic. """ |
message['command'] = 'zappa.asynchronous.route_sns_task'
payload = json.dumps(message).encode('utf-8')
if len(payload) > LAMBDA_ASYNC_PAYLOAD_LIMIT: # pragma: no cover
raise AsyncException("Payload too large for SNS")
self.response = self.client.publish(
... |
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def parse_s3_url(url):
""" Parses S3 URL. Returns bucket (domain) and file (full path). """ |
bucket = ''
path = ''
if url:
result = urlparse(url)
bucket = result.netloc
path = result.path.strip('/')
return bucket, path |
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def string_to_timestamp(timestring):
""" Accepts a str, returns an int timestamp. """ |
ts = None
# Uses an extended version of Go's duration string.
try:
delta = durationpy.from_str(timestring);
past = datetime.datetime.utcnow() - delta
ts = calendar.timegm(past.timetuple())
return ts
except Exception as e:
pass
if ts:
return ts
... |
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def detect_django_settings():
""" Automatically try to discover Django settings files, return them as relative module paths. """ |
matches = []
for root, dirnames, filenames in os.walk(os.getcwd()):
for filename in fnmatch.filter(filenames, '*settings.py'):
full = os.path.join(root, filename)
if 'site-packages' in full:
continue
full = os.path.join(root, filename)
pa... |
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def detect_flask_apps():
""" Automatically try to discover Flask apps files, return them as relative module paths. """ |
matches = []
for root, dirnames, filenames in os.walk(os.getcwd()):
for filename in fnmatch.filter(filenames, '*.py'):
full = os.path.join(root, filename)
if 'site-packages' in full:
continue
full = os.path.join(root, filename)
with io.... |
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def check_new_version_available(this_version):
""" Checks if a newer version of Zappa is available. Returns True is updateable, else False. """ |
import requests
pypi_url = 'https://pypi.python.org/pypi/Zappa/json'
resp = requests.get(pypi_url, timeout=1.5)
top_version = resp.json()['info']['version']
return this_version != top_version |
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def conflicts_with_a_neighbouring_module(directory_path):
""" Checks if a directory lies in the same directory as a .py file with the same name. """ |
parent_dir_path, current_dir_name = os.path.split(os.path.normpath(directory_path))
neighbours = os.listdir(parent_dir_path)
conflicting_neighbour_filename = current_dir_name+'.py'
return conflicting_neighbour_filename in neighbours |
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def common_log(environ, response, response_time=None):
""" Given the WSGI environ and the response, log this event in Common Log Format. """ |
logger = logging.getLogger()
if response_time:
formatter = ApacheFormatter(with_response_time=True)
try:
log_entry = formatter(response.status_code, environ,
len(response.content), rt_us=response_time)
except TypeError:
# Upstr... |
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def load_remote_settings(self, remote_bucket, remote_file):
""" Attempt to read a file from s3 containing a flat json object. Adds each key->value pair as enviro... |
if not self.session:
boto_session = boto3.Session()
else:
boto_session = self.session
s3 = boto_session.resource('s3')
try:
remote_env_object = s3.Object(remote_bucket, remote_file).get()
except Exception as e: # pragma: no cover
... |
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def run_function(app_function, event, context):
""" Given a function and event context, detect signature and execute, returning any result. """ |
# getargspec does not support python 3 method with type hints
# Related issue: https://github.com/Miserlou/Zappa/issues/1452
if hasattr(inspect, "getfullargspec"): # Python 3
args, varargs, keywords, defaults, _, _, _ = inspect.getfullargspec(app_function)
else: # Python 2... |
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def get_function_for_aws_event(self, record):
""" Get the associated function to execute for a triggered AWS event Support S3, SNS, DynamoDB, kinesis and SQS eve... |
if 's3' in record:
if ':' in record['s3']['configurationId']:
return record['s3']['configurationId'].split(':')[-1]
arn = None
if 'Sns' in record:
try:
message = json.loads(record['Sns']['Message'])
if message.get('command... |
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def get_function_from_bot_intent_trigger(self, event):
""" For the given event build ARN and return the configured function """ |
intent = event.get('currentIntent')
if intent:
intent = intent.get('name')
if intent:
return self.settings.AWS_BOT_EVENT_MAPPING.get(
"{}:{}".format(intent, event.get('invocationSource'))
) |
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def get_function_for_cognito_trigger(self, trigger):
""" Get the associated function to execute for a cognito trigger """ |
print("get_function_for_cognito_trigger", self.settings.COGNITO_TRIGGER_MAPPING, trigger, self.settings.COGNITO_TRIGGER_MAPPING.get(trigger))
return self.settings.COGNITO_TRIGGER_MAPPING.get(trigger) |
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def lambda_handler(event, context):
print("Client token: " + event['authorizationToken']) print("Method ARN: " + event['methodArn']) """validate the incoming tok... |
"""and produce the principal user identifier associated with the token"""
"""this could be accomplished in a number of ways:"""
"""1. Call out to OAuth provider"""
"""2. Decode a JWT token inline"""
"""3. Lookup in a self-managed DB"""
principalId = "user|a1b2c3d4"
"""you can send a 401 U... |
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def _addMethod(self, effect, verb, resource, conditions):
"""Adds a method to the internal lists of allowed or denied methods. Each object in the internal list c... |
if verb != "*" and not hasattr(HttpVerb, verb):
raise NameError("Invalid HTTP verb " + verb + ". Allowed verbs in HttpVerb class")
resourcePattern = re.compile(self.pathRegex)
if not resourcePattern.match(resource):
raise NameError("Invalid resource path: " + resource + ... |
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def boto_client(self, service, *args, **kwargs):
"""A wrapper to apply configuration options to boto clients""" |
return self.boto_session.client(service, *args, **self.configure_boto_session_method_kwargs(service, kwargs)) |
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def boto_resource(self, service, *args, **kwargs):
"""A wrapper to apply configuration options to boto resources""" |
return self.boto_session.resource(service, *args, **self.configure_boto_session_method_kwargs(service, kwargs)) |
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| def cache_param(self, value):
'''Returns a troposphere Ref to a value cached as a parameter.'''
if value not in self.cf_parameters:
keyname = chr(ord('A') + len(self.cf_parameters))
param = self.cf_template.add_parameter(troposphere.Parameter(
keyname, Type="Stri... |
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def get_deps_list(self, pkg_name, installed_distros=None):
""" For a given package, returns a list of required packages. Recursive. """ |
# https://github.com/Miserlou/Zappa/issues/1478. Using `pkg_resources`
# instead of `pip` is the recommended approach. The usage is nearly
# identical.
import pkg_resources
deps = []
if not installed_distros:
installed_distros = pkg_resources.WorkingSet()
... |
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def create_handler_venv(self):
""" Takes the installed zappa and brings it into a fresh virtualenv-like folder. All dependencies are then downloaded. """ |
import subprocess
# We will need the currenv venv to pull Zappa from
current_venv = self.get_current_venv()
# Make a new folder for the handler packages
ve_path = os.path.join(os.getcwd(), 'handler_venv')
if os.sys.platform == 'win32':
current_site_package... |
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def get_current_venv():
""" Returns the path to the current virtualenv """ |
if 'VIRTUAL_ENV' in os.environ:
venv = os.environ['VIRTUAL_ENV']
elif os.path.exists('.python-version'): # pragma: no cover
try:
subprocess.check_output(['pyenv', 'help'], stderr=subprocess.STDOUT)
except OSError:
print("This director... |
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def extract_lambda_package(self, package_name, path):
""" Extracts the lambda package into a given path. Assumes the package exists in lambda packages. """ |
lambda_package = lambda_packages[package_name][self.runtime]
# Trash the local version to help with package space saving
shutil.rmtree(os.path.join(path, package_name), ignore_errors=True)
tar = tarfile.open(lambda_package['path'], mode="r:gz")
for member in tar.getmembers():
... |
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def get_installed_packages(site_packages, site_packages_64):
""" Returns a dict of installed packages that Zappa cares about. """ |
import pkg_resources
package_to_keep = []
if os.path.isdir(site_packages):
package_to_keep += os.listdir(site_packages)
if os.path.isdir(site_packages_64):
package_to_keep += os.listdir(site_packages_64)
package_to_keep = [x.lower() for x in package_to_... |
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def have_correct_lambda_package_version(self, package_name, package_version):
""" Checks if a given package version binary should be copied over from lambda pack... |
lambda_package_details = lambda_packages.get(package_name, {}).get(self.runtime)
if lambda_package_details is None:
return False
# Binaries can be compiled for different package versions
# Related: https://github.com/Miserlou/Zappa/issues/800
if package_version != ... |
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def get_cached_manylinux_wheel(self, package_name, package_version, disable_progress=False):
""" Gets the locally stored version of a manylinux wheel. If one doe... |
cached_wheels_dir = os.path.join(tempfile.gettempdir(), 'cached_wheels')
if not os.path.isdir(cached_wheels_dir):
os.makedirs(cached_wheels_dir)
wheel_file = '{0!s}-{1!s}-{2!s}'.format(package_name, package_version, self.manylinux_wheel_file_suffix)
wheel_path = os.path.joi... |
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def get_manylinux_wheel_url(self, package_name, package_version):
""" For a given package name, returns a link to the download URL, else returns None. Related: h... |
cached_pypi_info_dir = os.path.join(tempfile.gettempdir(), 'cached_pypi_info')
if not os.path.isdir(cached_pypi_info_dir):
os.makedirs(cached_pypi_info_dir)
# Even though the metadata is for the package, we save it in a
# filename that includes the package's version. This he... |
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def copy_on_s3(self, src_file_name, dst_file_name, bucket_name):
""" Copies src file to destination within a bucket. """ |
try:
self.s3_client.head_bucket(Bucket=bucket_name)
except botocore.exceptions.ClientError as e: # pragma: no cover
# If a client error is thrown, then check that it was a 404 error.
# If it was a 404 error, then the bucket does not exist.
error_code = i... |
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def remove_from_s3(self, file_name, bucket_name):
""" Given a file name and a bucket, remove it from S3. There's no reason to keep the file hosted on S3 once its... |
try:
self.s3_client.head_bucket(Bucket=bucket_name)
except botocore.exceptions.ClientError as e: # pragma: no cover
# If a client error is thrown, then check that it was a 404 error.
# If it was a 404 error, then the bucket does not exist.
error_code = i... |
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def update_lambda_configuration( self, lambda_arn, function_name, handler, description='Zappa Deployment', timeout=30, memory_size=512, publish=True, vpc_config=N... |
print("Updating Lambda function configuration..")
if not vpc_config:
vpc_config = {}
if not self.credentials_arn:
self.get_credentials_arn()
if not aws_kms_key_arn:
aws_kms_key_arn = ''
if not aws_environment_variables:
aws_enviro... |
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def invoke_lambda_function( self, function_name, payload, invocation_type='Event', log_type='Tail', client_context=None, qualifier=None ):
""" Directly invoke a ... |
return self.lambda_client.invoke(
FunctionName=function_name,
InvocationType=invocation_type,
LogType=log_type,
Payload=payload
) |
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def rollback_lambda_function_version(self, function_name, versions_back=1, publish=True):
""" Rollback the lambda function code 'versions_back' number of revisio... |
response = self.lambda_client.list_versions_by_function(FunctionName=function_name)
# Take into account $LATEST
if len(response['Versions']) < versions_back + 1:
print("We do not have {} revisions. Aborting".format(str(versions_back)))
return False
revisions = ... |
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def get_lambda_function(self, function_name):
""" Returns the lambda function ARN, given a name This requires the "lambda:GetFunction" role. """ |
response = self.lambda_client.get_function(
FunctionName=function_name)
return response['Configuration']['FunctionArn'] |
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def get_lambda_function_versions(self, function_name):
""" Simply returns the versions available for a Lambda function, given a function name. """ |
try:
response = self.lambda_client.list_versions_by_function(
FunctionName=function_name
)
return response.get('Versions', [])
except Exception:
return [] |
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def create_api_gateway_routes( self, lambda_arn, api_name=None, api_key_required=False, authorization_type='NONE', authorizer=None, cors_options=None, description... |
restapi = troposphere.apigateway.RestApi('Api')
restapi.Name = api_name or lambda_arn.split(':')[-1]
if not description:
description = 'Created automatically by Zappa.'
restapi.Description = description
endpoint_configuration = [] if endpoint_configuration is None e... |
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def create_authorizer(self, restapi, uri, authorizer):
""" Create Authorizer for API gateway """ |
authorizer_type = authorizer.get("type", "TOKEN").upper()
identity_validation_expression = authorizer.get('validation_expression', None)
authorizer_resource = troposphere.apigateway.Authorizer("Authorizer")
authorizer_resource.RestApiId = troposphere.Ref(restapi)
authorizer_res... |
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def deploy_api_gateway( self, api_id, stage_name, stage_description="", description="", cache_cluster_enabled=False, cache_cluster_size='0.5', variables=None, clo... |
print("Deploying API Gateway..")
self.apigateway_client.create_deployment(
restApiId=api_id,
stageName=stage_name,
stageDescription=stage_description,
description=description,
cacheClusterEnabled=cache_cluster_enabled,
cacheCluste... |
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def remove_binary_support(self, api_id, cors=False):
""" Remove binary support """ |
response = self.apigateway_client.get_rest_api(
restApiId=api_id
)
if "binaryMediaTypes" in response and "*/*" in response["binaryMediaTypes"]:
self.apigateway_client.update_rest_api(
restApiId=api_id,
patchOperations=[
... |
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def add_api_compression(self, api_id, min_compression_size):
""" Add Rest API compression """ |
self.apigateway_client.update_rest_api(
restApiId=api_id,
patchOperations=[
{
'op': 'replace',
'path': '/minimumCompressionSize',
'value': str(min_compression_size)
}
]
) |
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def get_api_keys(self, api_id, stage_name):
""" Generator that allows to iterate per API keys associated to an api_id and a stage_name. """ |
response = self.apigateway_client.get_api_keys(limit=500)
stage_key = '{}/{}'.format(api_id, stage_name)
for api_key in response.get('items'):
if stage_key in api_key.get('stageKeys'):
yield api_key.get('id') |
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def create_api_key(self, api_id, stage_name):
""" Create new API key and link it with an api_id and a stage_name """ |
response = self.apigateway_client.create_api_key(
name='{}_{}'.format(stage_name, api_id),
description='Api Key for {}'.format(api_id),
enabled=True,
stageKeys=[
{
'restApiId': '{}'.format(api_id),
'stageNam... |
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def remove_api_key(self, api_id, stage_name):
""" Remove a generated API key for api_id and stage_name """ |
response = self.apigateway_client.get_api_keys(
limit=1,
nameQuery='{}_{}'.format(stage_name, api_id)
)
for api_key in response.get('items'):
self.apigateway_client.delete_api_key(
apiKey="{}".format(api_key['id'])
) |
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def add_api_stage_to_api_key(self, api_key, api_id, stage_name):
""" Add api stage to Api key """ |
self.apigateway_client.update_api_key(
apiKey=api_key,
patchOperations=[
{
'op': 'add',
'path': '/stages',
'value': '{}/{}'.format(api_id, stage_name)
}
]
) |
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def get_patch_op(self, keypath, value, op='replace'):
""" Return an object that describes a change of configuration on the given staging. Setting will be applied... |
if isinstance(value, bool):
value = str(value).lower()
return {'op': op, 'path': '/*/*/{}'.format(keypath), 'value': value} |
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def get_rest_apis(self, project_name):
""" Generator that allows to iterate per every available apis. """ |
all_apis = self.apigateway_client.get_rest_apis(
limit=500
)
for api in all_apis['items']:
if api['name'] != project_name:
continue
yield api |
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def undeploy_api_gateway(self, lambda_name, domain_name=None, base_path=None):
""" Delete a deployed REST API Gateway. """ |
print("Deleting API Gateway..")
api_id = self.get_api_id(lambda_name)
if domain_name:
# XXX - Remove Route53 smartly here?
# XXX - This doesn't raise, but doesn't work either.
try:
self.apigateway_client.delete_base_path_mapping(
... |
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def update_stage_config( self, project_name, stage_name, cloudwatch_log_level, cloudwatch_data_trace, cloudwatch_metrics_enabled ):
""" Update CloudWatch metrics... |
if cloudwatch_log_level not in self.cloudwatch_log_levels:
cloudwatch_log_level = 'OFF'
for api in self.get_rest_apis(project_name):
self.apigateway_client.update_stage(
restApiId=api['id'],
stageName=stage_name,
patchOperations=[... |
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def delete_stack(self, name, wait=False):
""" Delete the CF stack managed by Zappa. """ |
try:
stack = self.cf_client.describe_stacks(StackName=name)['Stacks'][0]
except: # pragma: no cover
print('No Zappa stack named {0}'.format(name))
return False
tags = {x['Key']:x['Value'] for x in stack['Tags']}
if tags.get('ZappaProject') == name:
... |
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def create_stack_template( self, lambda_arn, lambda_name, api_key_required, iam_authorization, authorizer, cors_options=None, description=None, endpoint_configura... |
auth_type = "NONE"
if iam_authorization and authorizer:
logger.warn("Both IAM Authorization and Authorizer are specified, this is not possible. "
"Setting Auth method to IAM Authorization")
authorizer = None
auth_type = "AWS_IAM"
elif... |
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def stack_outputs(self, name):
""" Given a name, describes CloudFront stacks and returns dict of the stack Outputs , else returns an empty dict. """ |
try:
stack = self.cf_client.describe_stacks(StackName=name)['Stacks'][0]
return {x['OutputKey']: x['OutputValue'] for x in stack['Outputs']}
except botocore.client.ClientError:
return {} |
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def get_api_url(self, lambda_name, stage_name):
""" Given a lambda_name and stage_name, return a valid API URL. """ |
api_id = self.get_api_id(lambda_name)
if api_id:
return "https://{}.execute-api.{}.amazonaws.com/{}".format(api_id, self.boto_session.region_name, stage_name)
else:
return None |
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def get_api_id(self, lambda_name):
""" Given a lambda_name, return the API id. """ |
try:
response = self.cf_client.describe_stack_resource(StackName=lambda_name,
LogicalResourceId='Api')
return response['StackResourceDetail'].get('PhysicalResourceId', None)
except: # pragma: no cover
try:... |
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def create_domain_name(self, domain_name, certificate_name, certificate_body=None, certificate_private_key=None, certificate_chain=None, certificate_arn=None, lam... |
# This is a Let's Encrypt or custom certificate
if not certificate_arn:
agw_response = self.apigateway_client.create_domain_name(
domainName=domain_name,
certificateName=certificate_name,
certificateBody=certificate_body,
cert... |
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def update_route53_records(self, domain_name, dns_name):
""" Updates Route53 Records following GW domain creation """ |
zone_id = self.get_hosted_zone_id_for_domain(domain_name)
is_apex = self.route53.get_hosted_zone(Id=zone_id)['HostedZone']['Name'][:-1] == domain_name
if is_apex:
record_set = {
'Name': domain_name,
'Type': 'A',
'AliasTarget': {
... |
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def update_domain_name(self, domain_name, certificate_name=None, certificate_body=None, certificate_private_key=None, certificate_chain=None, certificate_arn=None... |
print("Updating domain name!")
certificate_name = certificate_name + str(time.time())
api_gateway_domain = self.apigateway_client.get_domain_name(domainName=domain_name)
if not certificate_arn\
and certificate_body and certificate_private_key and certificate_chain:
... |
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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
def update_domain_base_path_mapping(self, domain_name, lambda_name, stage, base_path):
""" Update domain base path mapping on API Gateway if it was changed """ |
api_id = self.get_api_id(lambda_name)
if not api_id:
print("Warning! Can't update base path mapping!")
return
base_path_mappings = self.apigateway_client.get_base_path_mappings(domainName=domain_name)
found = False
for base_path_mapping in base_path_mappi... |
<SYSTEM_TASK:>
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Description:
def get_all_zones(self):
"""Same behaviour of list_host_zones, but transparently handling pagination.""" |
zones = {'HostedZones': []}
new_zones = self.route53.list_hosted_zones(MaxItems='100')
while new_zones['IsTruncated']:
zones['HostedZones'] += new_zones['HostedZones']
new_zones = self.route53.list_hosted_zones(Marker=new_zones['NextMarker'], MaxItems='100')
zo... |
<SYSTEM_TASK:>
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Description:
def get_domain_name(self, domain_name, route53=True):
""" Scan our hosted zones for the record of a given name. Returns the record entry, else None. """ |
# Make sure api gateway domain is present
try:
self.apigateway_client.get_domain_name(domainName=domain_name)
except Exception:
return None
if not route53:
return True
try:
zones = self.get_all_zones()
for zone in zon... |
<SYSTEM_TASK:>
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Description:
def get_credentials_arn(self):
""" Given our role name, get and set the credentials_arn. """ |
role = self.iam.Role(self.role_name)
self.credentials_arn = role.arn
return role, self.credentials_arn |
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Description:
def create_iam_roles(self):
""" Create and defines the IAM roles and policies necessary for Zappa. If the IAM role already exists, it will be updated if necessar... |
attach_policy_obj = json.loads(self.attach_policy)
assume_policy_obj = json.loads(self.assume_policy)
if self.extra_permissions:
for permission in self.extra_permissions:
attach_policy_obj['Statement'].append(dict(permission))
self.attach_policy = json.d... |
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