对于语法错误，源行号可用作lineno异常对象本身上的标志，您的情况下存储在中err。这是特定于语法错误的，其中行号是错误的组成部分：
>>> cmd = """
... 1 \ +
... 2 * "
... """
>>> try:
... exec cmd
... except SyntaxError as err:
... print err.lineno
...
2
如果您还想处理其他错误，请添加一个新except块except Exception, err，然后使用该traceback模块计算运行时错误的行号。
import sys
import traceback
class InterpreterError(Exception): pass
def my_exec(cmd, globals=None, locals=None, description='source string'):
try:
exec(cmd, globals, locals)
except SyntaxError as err:
error_class = err.__class__.__name__
detail = err.args[0]
line_number = err.lineno
except Exception as err:
error_class = err.__class__.__name__
detail = err.args[0]
cl, exc, tb = sys.exc_info()
line_number = traceback.extract_tb(tb)[-1][1]
else:
return
raise InterpreterError("%s at line %d of %s: %s" % (error_class, line_number, description, detail))
例子：
>>> my_exec("1+1") # no exception
>>>
>>> my_exec("1+1\nbork")
...
InterpreterError: NameError at line 2 of source string: name 'bork' is not defined
>>>
>>> my_exec("1+1\nbork bork bork")
...
InterpreterError: SyntaxError at line 2 of source string: invalid Syntax
>>>
>>> my_exec("1+1\n'''")
...
InterpreterError: SyntaxError at line 2 of source string: EOF while scanning triple-quoted string
602392714
清零编程群