""" between file() and open() in Python 2 and 3, a NameError is thrown with open() in Python 3 and an IOError is thrown in the other three cases <bashes head against keyboard>. """
This is *exactly* my concern with Python exceptions. You just never know what can be thrown at you. > You want to look up Easier to Ask Forgivness than Permission (EAFP) > which is touted as the "canonical" error-handling paradigm for Python. Any (semi)complete guides on this canonical paradigm online ? I've only found some references in maillist discussions. > def do_something(filename): > if not os.access(filename,os.R_OK): > return err(...) > f = open(filename) > ... > But does os.access cover absolutely all the errors that can happen during open() ? What guarantees it, and how can I know without you teaching me, just from the docs ? -- http://mail.python.org/mailman/listinfo/python-list
