如何记录Python异常?
try:
do_something()
except:
# How can I log my exception here, complete with its traceback?
如何记录Python异常?
try:
do_something()
except:
# How can I log my exception here, complete with its traceback?
当前回答
我要找的是:
import sys
import traceback
exc_type, exc_value, exc_traceback = sys.exc_info()
traceback_in_var = traceback.format_tb(exc_traceback)
看到的:
https://docs.python.org/3/library/traceback.html
其他回答
未捕获的异常消息将发送到STDERR,因此,您可以使用任何用于运行Python脚本的shell将STDERR发送到文件中,而不是在Python中实现日志记录。在Bash脚本中,您可以使用输出重定向来实现这一点,如Bash指南中所述。
例子
附加错误文件,其他输出到终端:
./test.py 2>> mylog.log
覆盖交错的STDOUT和STDERR输出文件:
./test.py &> mylog.log
我要找的是:
import sys
import traceback
exc_type, exc_value, exc_traceback = sys.exc_info()
traceback_in_var = traceback.format_tb(exc_traceback)
看到的:
https://docs.python.org/3/library/traceback.html
下面是一个简单的例子,摘自python 2.6文档:
import logging
LOG_FILENAME = '/tmp/logging_example.out'
logging.basicConfig(filename=LOG_FILENAME,level=logging.DEBUG,)
logging.debug('This message should go to the log file')
使用exc_info选项可能更好,保留警告或错误标题:
try:
# coode in here
except Exception as e:
logging.error(e, exc_info=True)
我就是这么做的。
try:
do_something()
except:
# How can I log my exception here, complete with its traceback?
import traceback
traceback.format_exc() # this will print a complete trace to stout.