Python read_and_divide Beispiele

Beispiel #1

Datei: handle_3_exceptions.py Projekt: snapiri/slides

import sys
import module

# python handle_both_exceptions.py one.txt zero.txt two.txt three.txt
files = sys.argv[1:]

for filename in files:
    try:
        module.read_and_divide(filename)
    except ZeroDivisionError:
        print("Cannot divide by 0 in file {}".format(filename))
    except IOError:
        print("Cannot open file {}".format(filename))
    except ValueError as ex:
        print("ValueError {} in file {}".format(ex, filename))

Beispiel #2

Datei: open_list_of_files.py Projekt: storasvyras/slides

import module

# 3 of the 4 file exist
files = 'one.txt', 'zero.txt', 'two.txt', 'three.txt'

for f in files:
    module.read_and_divide(f)

# before one.txt
# 100.0
# after  one.txt
# before zero.txt
# Traceback (most recent call last):
# ...
# ZeroDivisionError: division by zero