cli.CountOf returns a list instead of zero

[khorn]

When using cli.CountOf, if the parser does not find any instances of the flag (and so should return a value of zero), then it returns a single-element list, with the single element being zero.

Here's a quick program which illustrates the problem:

from plumbum import cli

class HelloApp(cli.Application):
    '''A simple app to say "Hello!"'''
    PROGNAME = 'HelloApp'
    VERSION = '1.0'

    verbosity = cli.CountOf('-v', help="Verbosity Level")

    def main(self, who='CLI World'):
        print self.verbosity
        print type(self.verbosity)
        if self.verbosity >= 1:
            print "I'm about to say hello."

        msg = 'Hello {!s}!'.format(who)
        print msg


if __name__ == "__main__":
    HelloApp.run()

Note that if you do not provide a -v flag, the value of self.verbosity will always be: [0]

If you give any other number of -v flags, CountOf returns the appropriate integer.

[khorn]

Thanks, @tomerfiliba! Talk about rapid turnaround. 🍪