请问用python如果出现这种错误如何使用try, except
创建于: 2021-12-01 12:00:09,
更新于:
11
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错误 Sell(581.63, 0.01): 400: {“code”:-4024,“msg”:“Limit price can’t be lower than 600.087”} 我的代码 def sell(currency,price,amount): Log(“sell currency: “, currency) set_precision(currency) exchange.SetDirection(“sell”) id1 = 0 k = 0 while (id1 == 0 and k == 0): try: id1 = exchange.Sell(price, amount) Log(“price: “, price) Log(“amount: “, amount) k = 1 Log(“k: “, k) except: cancel_all_sell_order(currency) continue return id1
没有进入except，请问是为什么
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全部留言
发明者量化-小小梦
异常机制只能捕获程序异常，接口报错不属于程序异常（接口报错是接口业务错误，并非异常）。
2021-12-01 12:02:11
发明者量化-小小梦
都一样，调用失败返回的都是空值。
2021-12-04 12:59:16
发明者量化-小小梦
nil 就是空值的意思。判断接口是不是调用失败，判断返回的是不是空值就可以了。
2021-12-04 12:58:46
wangtaolue
我看了一下好像返回的是<nil>，但是不懂是字符串还是什么类型
2021-12-04 11:27:20
wangtaolue
我问的是这个错误Sell(4649.03, 0.022): 502: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <TITLE>ERROR: The request could not be satisfied</TITLE> </HEAD><BODY> <H1>502 ERROR</H1> <H2>The request could not be satisfied.</H2> <HR noshade size="1px"> The origin closed the connection. We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner. <BR clear="all"> If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation. <BR clear="all"> <HR noshade size="1px"> <PRE> Generated by cloudfront (CloudFront) Request ID: I0xVlMaU_kVYhR0FicEUq-pulPa--VPkbJtWbjg_2yZlhX1x1wnL4g== </PRE> <ADDRESS> </ADDRESS> </BODY></HTML>
2021-12-04 11:25:52
发明者量化-小小梦
```
Sell(581.63, 0.01): 400: {"code":-4024,"msg":"Limit price can't be lower than 600.087"}
```
这种业务错误， 接口返回空值，python 是```None``` 。 JS是```null```。
获取交易所接口原始应答信息，用GetRawJSON, 在FMZ API 文档上有，可以查阅看下。
2021-12-04 11:00:53
wangtaolue
是字符串还是什么类型的
2021-12-04 01:30:27
wangtaolue
这个的返回值是<nil>这个字符串吗，S_ID: <nil>我看了我的程序后面是返回这个
2021-12-03 23:43:11
wangtaolue
这个的返回值是<nil>这个字符串吗
2021-12-03 23:30:41
wangtaolue
出现这种情况要怎么获取
2021-12-03 22:44:01
wangtaolue
Sell(4649.03, 0.022): 502: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <TITLE>ERROR: The request could not be satisfied</TITLE> </HEAD><BODY> <H1>502 ERROR</H1> <H2>The request could not be satisfied.</H2> <HR noshade size="1px"> The origin closed the connection. We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner. <BR clear="all"> If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation. <BR clear="all"> <HR noshade size="1px"> <PRE> Generated by cloudfront (CloudFront) Request ID: I0xVlMaU_kVYhR0FicEUq-pulPa--VPkbJtWbjg_2yZlhX1x1wnL4g== </PRE> <ADDRESS> </ADDRESS> </BODY></HTML>
出现这个错误也不会返回
2021-12-03 22:34:19