text: # -*- coding: utf-8 -*-
  #
  # Copyright 2016 Ricequant, 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.
  
  
  import pytz
  import pandas as pd
  
  
  class TradingParams(object):
      def __init__(self, trading_calendar, **kwargs):
          assert isinstance(trading_calendar, pd.Index)
          self.trading_calendar = trading_calendar
          self.timezone = kwargs.get("timezone", pytz.utc)
          self.benchmark = kwargs.get("benchmark", "000300.XSHG")
          self.frequency = kwargs.get("frequency", "1d")
  
          self.start_date = kwargs.get("start_date", self.trading_calendar[0].date())
          self.end_date = kwargs.get("end_date", self.trading_calendar[-1].date())
  
          self.init_cash = kwargs.get("init_cash", 100000)
  
          self.show_progress = kwargs.get("show_progress", False)
  