是否可以在 Python3 中的特定函数之外附加代码行？

Question

我正在尝试获取加密货币交易所的订单簿如何支持特定对（例如 ETH/BTC）。因为我的函数需要每分钟运行一次，所以每次检查都非常耗时。我正在使用 ccxt 来获取交易所的订单簿。用这行代码，我检查每一次交换。import ccxtbinance   = ccxt.binance()livecoin  = ccxt.livecoin()kucoin    = ccxt.kucoin()hitbtc    = ccxt.hitbtc()kraken    = ccxt.kraken()crex24    = ccxt.crex24()okex      = ccxt.okex()headerList = ["time","type","pair"]try:    orderbookBinance = binance.fetch_order_book(self.pair,5)    headerList.append("binance")    headerList.append("binanceAmount")except:    print("Pair isn't available in binance")try:    orderbookLivecoin = livecoin.fetch_order_book(self.pair,5)    headerList.append("livecoin")    headerList.append("livecoinAmount")except:    print("Pair isn't available in livecoin")try:    orderbookKucoin = kucoin.fetch_order_book(self.pair,5)    headerList.append("kucoin")    headerList.append("kucoinAmount")except:    print("Pair isn't available in kucoin")try:    orderbookHitbtc = hitbtc.fetch_order_book(self.pair,5)    headerList.append("hitbtc")    headerList.append("hitbtcAmount")except:    print("Pair isn't available in hitbtc")try:    orderbookKraken = kraken.fetch_order_book(self.pair,5)    headerList.append("kraken")    headerList.append("krakenAmount")except:    print("Pair isn't available in kraken")try:    orderbookCrex24 = crex24.fetch_order_book(self.pair,5)    headerList.append("crex24")    headerList.append("crex24Amount")except:    print("Pair isn't available in crex24")try:    orderbookOkex = okex.fetch_order_book(self.pair,5)    headerList.append("okex")    headerList.append("okexAmount")except:    print("Pair isn't available in okex")现在我需要添加所有 try-blocks 的第一行，如果它们可以输出的话。这在python中可能吗？