我想在不退出的情况下捕获和记录异常,例如,
try:
do_stuff()
except Exception as err:
print(Exception, err)
# I want to print the entire traceback here,
# not just the exception name and details
我想打印与抛出异常时打印的完全相同的输出,而不使用try/,只是拦截异常,并且我不希望它退出程序。
我想在不退出的情况下捕获和记录异常,例如,
try:
do_stuff()
except Exception as err:
print(Exception, err)
# I want to print the entire traceback here,
# not just the exception name and details
我想打印与抛出异常时打印的完全相同的输出,而不使用try/,只是拦截异常,并且我不希望它退出程序。
当前回答
您需要将try/except放在可能发生错误的最内层循环中,即。
for i in something:
for j in somethingelse:
for k in whatever:
try:
something_complex(i, j, k)
except Exception, e:
print e
try:
something_less_complex(i, j)
except Exception, e:
print e
... 等等
换句话说,您需要将可能在try/中失败的语句包装在尽可能具体的内部循环中。
其他回答
您需要将try/except放在可能发生错误的最内层循环中,即。
for i in something:
for j in somethingelse:
for k in whatever:
try:
something_complex(i, j, k)
except Exception, e:
print e
try:
something_less_complex(i, j)
except Exception, e:
print e
... 等等
换句话说,您需要将可能在try/中失败的语句包装在尽可能具体的内部循环中。
关于这个答案的注释:print(traceback.format_exc())对我来说比traceback.print_exc()更好。对于后者,hello有时会奇怪地与回溯文本“混合”在一起,比如两者都想同时写入stdout或stderr,产生奇怪的输出(至少在从文本编辑器内部构建并在“构建结果”面板中查看输出时)。
回溯(最近一次调用): 文件“C:\Users\User\Desktop\test.py”,第7行,在 地狱do_stuff () 文件“C:\Users\User\Desktop\test.py”,第4行,do_stuff 1/0 ZeroDivisionError:整数除法或对0取模 o [0.1s完成]
所以我用:
import traceback, sys
def do_stuff():
1/0
try:
do_stuff()
except Exception:
print(traceback.format_exc())
print('hello')
这是我把错误写在日志文件和控制台的解决方案:
import logging, sys
import traceback
logging.basicConfig(filename='error.log', level=logging.DEBUG)
def handle_exception(exc_type, exc_value, exc_traceback):
if issubclass(exc_type, KeyboardInterrupt):
sys.__excepthook__(exc_type, exc_value, exc_traceback)
return
exc_info=(exc_type, exc_value, exc_traceback)
logging.critical("\nDate:" + str(datetime.datetime.now()), exc_info=(exc_type, exc_value, exc_traceback))
print("An error occured, check error.log to see the error details")
traceback.print_exception(*exc_info)
sys.excepthook = handle_exception
您需要traceback模块。它将允许您像Python通常那样打印堆栈转储。特别是,print_last函数将打印最后一个异常和堆栈跟踪。
你可以这样做:
try:
do_stuff()
except Exception, err:
print(Exception, err)
raise err