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How can I write a try/except block that catches all Python exceptions?
It is a general thumb rule that though you can catch all exceptions using code like below, you shouldn’t:
try: #do_something() except: print "Exception Caught!"
However, this will also catch exceptions like KeyboardInterrupt we may not be interested in. Unless you re-raise the exception right away – we will not be able to catch the exceptions:
try:
f = open('file.txt')
s = f.readline()
i = int(s.strip())
except IOError as (errno, strerror):
print "I/O error({0}): {1}".format(errno, strerror)
except ValueError:
print "Could not convert data to an integer."
except:
print "Unexpected error:", sys.exc_info()[0]
raiseWe get output like the following, if the file.txt is not available in the same folder as the script.
I/O error(2): No such file or directory
Updated on: 27-Sep-2019
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