New user's initial thoughts / criticisms of Python

[Rick Johnson]

On Saturday, November 9, 2013 10:30:26 AM UTC-6, rusi wrote:
> [...]
> Well
>
> print ( {"mon":"mondays suck",
>          "tue":"at least it's not monday",
>          "wed":"humpday"
>         }.get(day_of_week,"its some other day")
>       )
> may be dense
> Separate into named dictionary and its ok (I think!)

Proper code formatting can do WONDERS for readability!

## START CODE ##
d = {
    "mon":"mondays suck",
    "tue":"at least it's not monday",
    "wed":"humpday"
    }
default = "some other day"
target = "tue"
print d.get(target, default)
target = "blah"
print d.get(target, default)
## END CODE ##

Of course you could create something "reusable" and "interface-ee".

## START CODE ##
class UsageError(Exception):
    pass

class Case(object):
    def __init__(self, defaultDict=None, defaultValue=None):
        self.d = defaultDict or {}
        self.defaultValue = defaultValue

    def __str__(self):
        return "Case({0})".format(self.d)

    def __call__(self, key):
        try:
            v = self.d[key]
        except KeyError:
            v = self.defaultValue
        return v

    def __getitem__(self, k):
        raise UsageError("RTFS MAN!!!")

if __name__ == '__main__':
    import calendar
    d = {
        "mon":"mondays suck",
        "tue":"at least it's not monday",
        "wed":"humpday"
        }
    case = Case(d, "some other day")
    try:
        case["tue"]
    except UsageError:
        print 'Stopped improper useage.'
    print case
    lst = [s.lower() for s in calendar.weekheader(3).split(' ')]
    for dayName in lst:
        print "Case.__call__({0!r}) -> {1!r}".format(dayName, case(dayName))
## END CODE ##