How to do I understand strings Python concepts in just 5 mins!!

How to do I understand strings Python concepts in just 5 mins.py

#!/usr/bin/env python

def main():
    print int('5')
    print ord('s')
    print chr(115)
    print bin(13)
    print hex(26)
    print hex(255)
    print oct(255)
    print bin(255)

    print int('377', 8), int('FF', 16)

    print str('Vijay')
    print repr('Vijay')  # Removed in 3.X python

    line = "The knights who say N1!\n"
    print line.endswith('\n')
    print line.startswith('The'), '\n'

    print '%(qty)d more %(food)s' % {'qty': 1, 'food': 'Dosai'}, '\n'

    #   Method 1 of formatting output
    values = {}
    values = dict(name='Vijay', job='testing', age=24)
    print 'Hi Guys, My name is %(name)s and age is %(age)d. My Current job is %(job)s' % values, '\n'

    #   Method 2 of formatting
    template = '{0}, {1} and {2}'
    print template.format('spam', 'ham', 'eggs')

    template = '{}, {} and {}'
    print template.format('spam', 'ham', 'eggs')

    template = '{motto}, {pork} and {food}'
    print template.format(motto='spam', pork='ham', food='eggs')


if __name__ == '__main__':
    main()