Files
catalyst/zipline/protocol.py
T
Eddie Hebert 88070a0f12 Fixes dictionary-style lookup on Position and Portfolio.
Typo on method name, /__getattr__/__getitem__
2013-01-27 22:49:20 -05:00

116 lines
2.6 KiB
Python

#
# Copyright 2012 Quantopian, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from utils.protocol_utils import Enum
# Datasource type should completely determine the other fields of a
# message with its type.
DATASOURCE_TYPE = Enum(
'AS_TRADED_EQUITY',
'MERGER',
'SPLIT',
'DIVIDEND',
'TRADE',
'EMPTY',
'DONE'
)
class Event(object):
def __init__(self, initial_values=None):
if initial_values:
self.__dict__ = initial_values
def __getitem__(self, name):
return getattr(self, name)
def __setitem__(self, name, value):
setattr(self, name, value)
def __delitem__(self, name):
delattr(self, name)
def keys(self):
return self.__dict__.keys()
def __eq__(self, other):
return self.__dict__ == other.__dict__
def __contains__(self, name):
return name in self.__dict__
def __repr__(self):
return "Event({0})".format(self.__dict__)
class Portfolio(object):
def __init__(self, initial_values=None):
if initial_values:
self.__dict__ = initial_values
def __getitem__(self, key):
return self.__dict__[key]
def __repr__(self):
return "Portfolio({0})".format(self.__dict__)
class Position(object):
def __init__(self, sid):
self.sid = sid
self.amount = 0
self.cost_basis = 0.0 # per share
self.last_sale_price = 0.0
def __getitem__(self, key):
return self.__dict__[key]
def __repr__(self):
return "Position({0})".format(self.__dict__)
class Positions(dict):
def __missing__(self, key):
pos = Position(key)
self[key] = pos
return pos
class SIDData(object):
def __init__(self, initial_values=None):
if initial_values:
self.__dict__ = initial_values
def __getitem__(self, name):
return self.__dict__[name]
def __setitem__(self, name, value):
self.__dict__[name] = value
def __len__(self):
return len(self.__dict__)
def __contains__(self, name):
return name in self.__dict__
def __repr__(self):
return "SIDData({0})".format(self.__dict__)