'''This is a multi-line string. This is the first line.This is the second line."What's your name?," I asked.He said "Bond, James Bond."'''

if guess == number:  print 'Congratulations, you guessed it.' # New block starts hereelif guess < number:  print 'No, it is a little higher than that' # Another blockelse:  print 'No, it is a little lower than that'

while running:  guess = int(raw_input('Enter an integer : '))  if guess == number:    print 'Congratulations, you guessed it.'    running = False # this causes the while loop to stop  elif guess < number:    print 'No, it is a little higher than that'  else:    print 'No, it is a little lower than that'else:  print 'The while loop is over.'  # Do anything else you want to do here

for i in range(1, 5):  print ielse:  print 'The for loop is over'

def sayHello():  print 'Hello World!' # block belonging to the functionsayHello() # call the function

def printMax(a, b):  if a > b:    print a, 'is maximum'  else:    print b, 'is maximum'

def say(message, times = 1):  print message * times

def func(a, b=5, c=10):  print 'a is', a, 'and b is', b, 'and c is', cfunc(3, 7)func(25, c=24)func(c=50, a=100)

import sysprint 'The command line arguments are:'for i in sys.argv:  print i

shoplist = ['apple', 'mango', 'carrot', 'banana']print 'I have', len(shoplist),'items to purchase.'print 'These items are:', # Notice the comma at end of the linefor item in shoplist:  print item,print '/nI also have to buy rice.'shoplist.append('rice')print 'My shopping list is now', shoplistprint 'I will sort my list now'shoplist.sort()print 'Sorted shopping list is', shoplistprint 'The first item I will buy is', shoplist[0]olditem = shoplist[0]del shoplist[0]print 'I bought the', olditemprint 'My shopping list is now', shoplist

zoo = ('wolf', 'elephant', 'penguin')print 'Number of animals in the zoo is', len(zoo)new_zoo = ('monkey', 'dolphin', zoo)print 'Number of animals in the new zoo is', len(new_zoo)print 'All animals in new zoo are', new_zooprint 'Animals brought from old zoo are', new_zoo[2]print 'Last animal brought from old zoo is', new_zoo[2][2]

age = 22name = 'Swaroop'print '%s is %d years old' % (name, age)print 'Why is %s playing with that python?' % name

ab = {    'Swaroop'  : 'swaroopch@byteofpython.info',       'Larry'   : 'larry@wall.org',       'Matsumoto' : 'matz@ruby-lang.org',       'Spammer'  : 'spammer@hotmail.com'   }print "Swaroop's address is %s" % ab['Swaroop']# Adding a key/value pairab['Guido'] = 'guido@python.org'# Deleting a key/value pairdel ab['Spammer']print '/nThere are %d contacts in the address-book/n' % len(ab)for name, address in ab.items():  print 'Contact %s at %s' % (name, address)if 'Guido' in ab: # OR ab.has_key('Guido')  print "/nGuido's address is %s" % ab['Guido']

shoplist = ['apple', 'mango', 'carrot', 'banana']# Indexing or 'Subscription' operationprint 'Item 0 is', shoplist[0]print 'Item 1 is', shoplist[1]print 'Item -1 is', shoplist[-1]print 'Item -2 is', shoplist[-2]# Slicing on a listprint 'Item 1 to 3 is', shoplist[1:3]print 'Item 2 to end is', shoplist[2:]print 'Item 1 to -1 is', shoplist[1:-1]print 'Item start to end is', shoplist[:]# Slicing on a stringname = 'swaroop'print 'characters 1 to 3 is', name[1:3]print 'characters 2 to end is', name[2:]print 'characters 1 to -1 is', name[1:-1]print 'characters start to end is', name[:]

print 'Simple Assignment'shoplist = ['apple', 'mango', 'carrot', 'banana']mylist = shoplist # mylist is just another name pointing to the same object!del shoplist[0]print 'shoplist is', shoplistprint 'mylist is', mylist# notice that both shoplist and mylist both print the same list without# the 'apple' confirming that they point to the same objectprint 'Copy by making a full slice'mylist = shoplist[:] # make a copy by doing a full slicedel mylist[0] # remove first itemprint 'shoplist is', shoplistprint 'mylist is', mylist# notice that now the two lists are different

name = 'Swaroop' # This is a string objectif name.startswith('Swa'):  print 'Yes, the string starts with "Swa"'if 'a' in name:  print 'Yes, it contains the string "a"'if name.find('war') != -1:  print 'Yes, it contains the string "war"'delimiter = '_*_'mylist = ['Brazil', 'Russia', 'India', 'China']print delimiter.join(mylist)  //用delimiter來連接mylist的字符

class Person:  pass # An empty blockp = Person()print p

class Person:  def sayHi(self):    print 'Hello, how are you?'p = Person()p.sayHi()

class Person:  def __init__(self, name):    self.name = name  def sayHi(self):    print 'Hello, my name is', self.namep = Person('Swaroop')p.sayHi()

class Person:  '''Represents a person.'''  population = 0  def __init__(self, name):    '''Initializes the person's data.'''    self.name = name    print '(Initializing %s)' % self.name    # When this person is created, he/she    # adds to the population    Person.population += 1

class SchoolMember:  '''Represents any school member.'''  def __init__(self, name, age):    self.name = nameclass Teacher(SchoolMember):  '''Represents a teacher.'''  def __init__(self, name, age, salary):    SchoolMember.__init__(self, name, age)    self.salary = salary

f = file('poem.txt', 'w') # open for 'w'ritingf.write(poem) # write text to filef.close() # close the filef = file('poem.txt')# if no mode is specified, 'r'ead mode is assumed by defaultwhile True:  line = f.readline()  if len(line) == 0: # Zero length indicates EOF    break  print line,  # Notice comma to avoid automatic newline added by Pythonf.close() # close the file

import cPickle as p#import pickle as pshoplistfile = 'shoplist.data'# the name of the file where we will store the objectshoplist = ['apple', 'mango', 'carrot']# Write to the filef = file(shoplistfile, 'w')p.dump(shoplist, f) # dump the object to a filef.close()del shoplist # remove the shoplist# Read back from the storagef = file(shoplistfile)storedlist = p.load(f)print storedlist

import systry:  s = raw_input('Enter something --> ')except EOFError:  print '/nWhy did you do an EOF on me?'  sys.exit() # exit the programexcept:  print '/nSome error/exception occurred.'  # here, we are not exiting the programprint 'Done'

class ShortInputException(Exception):  '''A user-defined exception class.'''  def __init__(self, length, atleast):    Exception.__init__(self)    self.length = length    self.atleast = atleastraise ShortInputException(len(s), 3)

import timetry:  f = file('poem.txt')  while True: # our usual file-reading idiom    line = f.readline()    if len(line) == 0:      break    time.sleep(2)    print line,finally:  f.close()  print 'Cleaning up...closed the file'