[英]How to get the function and module names from a traceback?
I'm trying to extract info from a traceback, but I'm getting errors. 我正在尝试从追溯中提取信息,但出现错误。
I want to get rid of the call
variable in the following example code. 我想摆脱以下示例代码中的call
变量。 I want to search the traceback and get the name of the called socket module function. 我想搜索回溯并获取被调用的套接字模块函数的名称。 How can I do this? 我怎样才能做到这一点?
try:
sock = None
call = "socket"
sock = socket.socket(family, stype)
call = "setsockopt"
set_my_options():
call = "connect"
sock.connect(addr)
except OSError as err:
if sock is not None:
sock.close()
# call = name of the failed socket.XXX() call
raise RPCError("{} failed".format(call))
I have tried to begin with (Python3 only): 我尝试从(仅限Python3)开始:
stack = traceback.extract_stack(err.__traceback__)
or (Python2 and Python3) 或(Python2和Python3)
stack = traceback.extract_stack(sys.exc_info()[2])
but got: 但得到:
AttributeError: 'traceback' object has no attribute 'f_lineno' AttributeError:“ traceback”对象没有属性“ f_lineno”
Edit1 : 编辑1 :
After fixing the overlooked error, this is what I have now: 解决了被忽略的错误之后,这就是我现在所拥有的:
....
except OSError as err:
tb = traceback.extract_tb(err.__traceback__)
for tb_entry in reversed(tb):
if tb_entry[0] == __file__:
failed = tb_entry[3]
break
....
It extracts the last traceback entry where the executed code was still in the current file. 它提取执行代码仍在当前文件中的最后一个追溯条目。 Internals of a foreign module would not be very helpfull. 外部模块的内部信息不会很有帮助。 The result is a line of code, eg sock.connect(addr)
. 结果是一行代码,例如sock.connect(addr)
。 Not exactly what I wanted, but close. 不完全是我想要的,但是很接近。
In this way you can retrieve the function name and the module name where the function is. 这样,您可以检索函数名称和函数所在的模块名称。
import traceback
def func():
try:
# My code
except Exception as e:
stack = traceback.extract_stack()
(filename, line, procname, text) = stack[-1]
print procname # function name
print filename # module name
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