How to show why "try" failed in python
is there anyway to show why a "try" failed, and skipped to "except", without writing out all the possible errors by hand, and without ending the program?
example:
try:
1/0
except:
someway to show
"Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
1/0
ZeroDivisionError: integer division or modulo by zero"
i dont want to doif:print error 1, elif: print erro开发者_开发百科r 2, elif: etc...
. i want to see the error that would be shown had try
not been there
Try:
>>> try:
... 1/0
... except Exception, e:
... print e
...
integer division or modulo by zero
There are other syntactical variants, e.g.:
>>> try:
... 1/0
... except Exception as e:
... print e
...
integer division or modulo by zero
More information can be found in the errors tutorial.
I often use traceback
to log such exception to log or show on stderr:
import traceback
import sys
try:
print 1/0
except Exception:
s = traceback.format_exc()
serr = "there were errors:\n%s\n" % (s)
sys.stderr.write(serr)
Output will show info about line is source where exception occured:
there were errors:
Traceback (most recent call last):
File "c:\test\ex.py", line 5, in <module>
print 1/0
ZeroDivisionError: integer division or modulo by zero
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