Exercies: Exception int conversion
- In the earlier example we learned how to handle both ZeroDivisionError and IOError exceptions. Now try this
cd examples/exceptions python handle_both_exceptions.py one.txt zero.txt two.txt text.txt three.txt
before one.txt 100.0 after one.txt before zero.txt Cannot divide by 0 in file zero.txt before two.txt Cannot open file two.txt before text.txt Traceback (most recent call last): File "handle_both_exceptions.py", line 9, in <module> module.read_and_divide(filename) File "/home/gabor/work/slides/python/examples/exceptions/module.py", line 4, in read_and_divide number = int(fh.readline()) ValueError: invalid literal for int() with base 10: '3.14\n'
- This will raise a ValueError exception before handling file three.txt
- Fix it by capturing the spcific exception.
- Fix by capturing "all other exceptions".