Python Exception information Write log

In the process of development, you may often encounter a requirement, you need to export the Python exception information to the log file
Online methods are not very practical, the following is a practical, from the Python 2.7 source code to buckle out of
Nonsense not to say directly on the code, the code is not many, more than the comments

1 Importsys, Traceback2 3Traceback_template =" "Traceback (most recent):4 File "% (filename) S", Line% (Lineno) s, in% (name) s5 % (type) s:% (message) s\n" " #skipping the "actual line" item6 7 #Also note:we don ' t walk all the the-through the frame stack in this example8 #See hg.python.org/cpython/file/8dffb76faacc/lib/traceback.py#l2809 #(Imagine if the 1/0, below, were replaced by a call-to-test () which did 1/0.)Ten  One Try: A1/0 - except: -     #Http://docs.python.org/2/library/sys.html#sys.exc_info theExc_type, exc_value, exc_traceback = Sys.exc_info ()#Most recent (if any) by default -  -     " " - Reason This _can_ is bad:if an (unhandled) exception happens after this, + or if we do not delete the labels on (not much) older versions of Py, the - reference we created can linger. +  A Traceback.format_exc/print_exc do the very thing, but note this creates a at Temp scope within the function. -     " " -  -Traceback_details = { -                          'filename': Exc_traceback.tb_frame.f_code.co_filename, -                          'Lineno': Exc_traceback.tb_lineno, in                          'name': Exc_traceback.tb_frame.f_code.co_name, -                          'type': Exc_type.__name__, to                          'message': Exc_value.message,#or see Traceback._some_str () +                         } -  the     del(Exc_type, Exc_value, Exc_traceback)#So we don ' t leave our local labels/objects dangling *     #This still isn ' t "completely safe", though! $     #"Best (Recommended) Practice:replace all Exc_type, Exc_value, Exc_tracebackPanax Notoginseng     #With sys.exc_info () [0], Sys.exc_info () [1], Sys.exc_info () [2] -  the  +     ## Modify this to place the traceback anywhere, or store it in a file. A     PrintTraceback_template% Traceback_details

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Python Exception information Write log