错误异常应继承基本Python错误对象 [英] Error Exception Should Inherit Base Python Error Object

问题描述

在Visual Basic中，有一个继承的基础对象，可有效用于错误调试.是否有与"Err"相对应的内容?Python中的对象?

In Visual Basic, there is an inherited base object that is effective for error debugging purposes. Is there an equivalent for the "Err" object in Python?

Dim Msg As String  
' If an error occurs, construct an error message.  
On Error Resume Next   ' Defer error handling.  
Err.Clear  
Err.Raise(6)   ' Generate an "Overflow" error.  
' Check for error, then show message.  
If Err.Number <> 0 Then  
    Msg = "Error # " & Str(Err.Number) & " was generated by " _  
        & Err.Source & ControlChars.CrLf & Err.Description  
    MsgBox(Msg, MsgBoxStyle.Information, "Error")  
End If 

例如:

def exec_sproc(sql,cnxn):
   try:
      cursor=cnxn.cursor()
      cursor.execute(sql)
      cnxn.commit()
      cursor.close()
   except(err):
      print("error: {0}".format(err))

有尝试的建议

   except Exception,e: print str(e)

我得到一个无效的语法，因为未定义'e'或在前面的示例中err显示为无效的语法.

I get an invalid syntax because 'e' is not defined or in the former example err shows as invalid syntax.

Python中的基本错误对象是什么?在大多数示例中，展示了用户定义的自定义错误，而不是对实际的"Python"返回代码进行编码.错误.如果我知道错误是什么，我不希望这样做.相反，请告诉我Python视为错误.(除无效语法外的任何方法都可以帮助您)

What is the base error object in Python? In most examples, user-defined custom errors are demonstrated rather than coding a return of the actual "Python" error. If I know what the error is, I prefer not to make it. Instead, show me what Python sees as the error. (anything other than invalid syntax would help)

推荐答案

我想这就是您要寻找的

def exec_sproc(sql,cnxn):
    try:
        cursor=cnxn.cursor()
        cursor.execute(sql)
        cnxn.commit()
        cursor.close()
    except Exception as err:
        print("error: {0}".format(err))

有关Python异常的更多信息，请在此处

for more on Python exceptions look here

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