old_contents: #!/usr/bin/env python
  # coding=utf-8
  
  from .exceptions import BinanceOrderUnknownSymbolException, \
      BinanceOrderInactiveSymbolException, \
      BinanceOrderMinPriceException, \
      BinanceOrderMinAmountException, \
      BinanceOrderMinTotalException
  
  """
  Use details from
  https://www.binance.com/exchange/public/product
  minTrade means min Amount
  ticksize means min price
  
  Notional limits from https://binance.zendesk.com/hc/en-us/articles/115000594711
  BTC - 0.001
  ETH - 0.01
  USDT - 1
  """
  
  NOTIONAL_LIMITS = {
      'BTC': 0.001,
      'ETH': 0.01,
      'USDT': 1
  }
  
  
  def validate_order(params, products):
      print(params)
      if params['symbol'] not in products:
          raise BinanceOrderUnknownSymbolException(params['symbol'])
  
      limits = products[params['symbol']]
  
      if not limits['active']:
          raise BinanceOrderInactiveSymbolException(params['symbol'])
  
      price = float(params['price'])
      quantity = float(params['quantity'])
      # check price
      if price < float(limits['tickSize']):
          raise BinanceOrderMinPriceException(limits['tickSize'])
  
      # check order amount
      min_trade = float(limits['minTrade'])
      if quantity / min_trade - int(quantity / min_trade) > 0.0:
          raise BinanceOrderMinAmountException(limits['minTrade'])
  
      # check order total
      total = float(params['price']) * float(params['quantity'])
      notional_total = NOTIONAL_LIMITS[limits['quoteAsset']]
      if total < notional_total:
          raise BinanceOrderMinTotalException(notional_total)
  
new_contents: #!/usr/bin/env python
  # coding=utf-8
  
  from .exceptions import BinanceOrderUnknownSymbolException, \
      BinanceOrderInactiveSymbolException, \
      BinanceOrderMinPriceException, \
      BinanceOrderMinAmountException, \
      BinanceOrderMinTotalException
  
  """
  Use details from
  https://www.binance.com/exchange/public/product
  minTrade means min Amount
  ticksize means min price
  
  Notional limits from https://binance.zendesk.com/hc/en-us/articles/115000594711
  BTC - 0.001
  ETH - 0.01
  USDT - 1
  """
  
  NOTIONAL_LIMITS = {
      'BTC': 0.001,
      'ETH': 0.01,
      'USDT': 1
  }
  
  
  def validate_order(params, products):
      if params['symbol'] not in products:
          raise BinanceOrderUnknownSymbolException(params['symbol'])
  
      limits = products[params['symbol']]
  
      if not limits['active']:
          raise BinanceOrderInactiveSymbolException(params['symbol'])
  
      price = float(params['price'])
      quantity = float(params['quantity'])
      # check price
      if price < float(limits['tickSize']):
          raise BinanceOrderMinPriceException(limits['tickSize'])
  
      # check order amount
      min_trade = float(limits['minTrade'])
      if quantity / min_trade - int(quantity / min_trade) > 0.0:
          raise BinanceOrderMinAmountException(limits['minTrade'])
  
      # check order total
      total = float(params['price']) * float(params['quantity'])
      notional_total = NOTIONAL_LIMITS[limits['quoteAsset']]
      if total < notional_total:
          raise BinanceOrderMinTotalException(notional_total)
  
subject: Remove print statement