def send(self, data: pd.DataFrame, attachments=[]):
emaillist = [elem.strip().split(',') for elem in self.receivers]
msg = MIMEMultipart()
msg['Subject'] = "Test Report"
msg['From'] = self.sender
### Email format ###
html = """\
<html>
<head></head>
<body>
{0}
</body>
</html>
""".format(data.to_html())
part1 = MIMEText(html, 'html')
msg.attach(part1)
### Attachment ###
if attachments:
for path in attachments:
filename = os.path.split(path)[-1]
with open(path, "rb") as attachment:
# Add file as application/octet-stream
# Email client can usually download this automatically as attachment
part = MIMEBase("application", "octet-stream")
part.set_payload(attachment.read())
# Encode file in ASCII characters to send by email
encoders.encode_base64(part)
# Add header as key/value pair to attachment part
part.add_header(
"Content-Disposition",
f"attachment; filename={filename}",
)
# Add attachment to message and convert message to string
msg.attach(part)
# Create a secure SSL context
context = ssl.create_default_context()
setting = Setting.get()
# Try to log in to server and send email
try:
server = smtplib.SMTP(self.smtp_server, self.tls_port)
server.ehlo() # Can be omitted
server.starttls(context=context) # Secure the connection
server.ehlo() # Can be omitted
server.login(self.sender, setting.sender_email_password)
# Send email here
server.sendmail(msg['From'], emaillist, msg.as_string())
logger.info(f"Successfully send email to {emaillist}.")
except Exception as e:
# Print any error messages to stdout
logger.error(str(e))
finally:
server.quit()
def evaluate(assetId: str,
strategyId: str,
df: pd.DataFrame,
evaluationPeriod: EvaluationPeriod = None,
deleteTemp=False) -> bool:
"""
Evaluate the performance of an arbitrary strategy. Columns required in df for evaluation process as below
:param
assetId:
strategyId: ID of the strategy with the specific set of parameters that generate 'position' for data
df: assume the existence of these columns after running through a Strategy
position: determine the position of the asset at each point in time
:return: the enriched df with evaluation parameters if pass evaluation criteria, else return None
"""
name = '_'.join([assetId, strategyId, evaluationPeriod.name])
### evaluation parameters
df['asset_ret'] = df['Adj Close'].pct_change()
df['return'] = df['asset_ret'] * df['position']
df['unit_asset_ret'] = (1 + df['asset_ret']).cumprod()
df['value'] = (1 + df['return']).cumprod()
### evaluate
if not deleteTemp:
tempDir = None
tempPath = get_temp_path()
if not os.path.exists(tempPath):
os.makedirs(tempPath)
else:
tempDir = tempfile.TemporaryDirectory()
tempPath = tempDir.name
graph_file_extension = Setting.get().graph_file_extension
tempPath = os.path.join(tempPath, name)
fig = plt.figure(figsize=(15, 10))
s1 = fig.add_subplot(2, 1, 1)
s1.plot(df['value'], label='Portfolio unit value')
s1.plot(df['unit_asset_ret'], label='Asset unit value')
s1.legend()
s1.set_title("Return")
s2 = fig.add_subplot(2, 1, 2)
alpha = df['value'] - df['unit_asset_ret']
s2.plot(alpha, label='Excess return compared to asset', color='r')
s2.legend()
s2.set_title("Alpha")
fig.savefig(tempPath + f'.{graph_file_extension}',
format=graph_file_extension)
plt.close(fig)
logger.info(f"Graph for {name} generated at {tempPath}.")
if tempDir: tempDir.cleanup()
### TODO: define the criteria for a pass
if not True:
return None
return df
:param n_jobs: the number of parallelized workers
:return: list of results from workers, should have length == len(partitions)
Note: can be implemented to submit jobs to distributed computing engine like a Spark cluster.
For now, just implemented to utilize multicore in the host machine
'''
# p = Pool(n_jobs)
# results = p.map(func, partitions)
# TODO: apply parallelized version, results should maintain order as input partitions
results = [func(*params) for params in partitions]
return results
if __name__ == '__main__':
# TODO: create Setting object and Context object
settings = Setting.get()
config = json.loads(open(settings.account_config_path).read())
# TODO: error handling
watchlist = list(
filter(lambda wl: wl['watchlist_id'] == 'default',
config['watchlists']))[0]
asset_ids = watchlist['assets']
''' pass asset ids to Analyzer '''
# 1. single-asset analyzer
# 2. multi-asset analyzer
''' Analyzer askes Strategy for DataConfig (duration, frequency, parameters, etc.) to specify what to fetch from MarketData/Portfolio '''
''' Analyzer gets data from MarketData for these assets '''
# what information you want ?
# 1. trading info (price, volume, etc.)
# 2. company info (BS, news, etc.)
# assuming we get these config from Strategy
import typing
import pandas as pd
import os
from reporting.reporter import EmailReporter
from settings import Setting
from utils import get_temp_path
graph_file_extension = Setting.get().graph_file_extension
def getGraphs(columns: pd.MultiIndex):
index = columns.reorder_levels(['StrategyId', 'AssetId'])
graphNames = map('_'.join, index.values.tolist())
basePath = get_temp_path()
return [
os.path.join(basePath, f"{filename}.{graph_file_extension}")
for filename in graphNames
]
def generateReport(data: pd.DataFrame):
"""
:param data: mapping of asset_id to its signal data frame
:return:
"""
signals = data.xs('signal', axis=1, level='Attributes')
### email the following detail
emailReporter = EmailReporter(['*****@*****.**'])
attachments = getGraphs(signals.columns)
emailReporter.send(signals.tail(10).sort_index(ascending=False),
attachments=attachments)
def __init__(self, receivers: typing.List[str]):
super().__init__()
self.sender = Setting.get().sender_email
self.receivers = receivers
