ret = ""
word = "hello"
for c in word:
    ret = c + ret
    print ret
    
h

eh

leh

lleh

olleh


ret = ""
for c in word:
    ret = ret + c
    print ret
    
h

he

hel

hell

hello


print word.split()
['hello']

phrase = "it is a lovely day today"
print phrase.split()
['it', 'is', 'a', 'lovely', 'day', 'today']

phraseSplit = phrase.split()
for w in phrase.split():
    print w
    
it

is

a

lovely

day

today


print phrase.count("is")
1

print "This is a lovely day".count("is")
2





phrase = "This is a lovely day"
lst = phrase.split()
print lst
['This', 'is', 'a', 'lovely', 'day']

phrase2 = " ".join(lst)
print phrase2
This is a lovely day

phase3 = "-".join(lst)
print phase3
This-is-a-lovely-day

lst.append("today")
print lst
['This', 'is', 'a', 'lovely', 'day', 'today']


if "day" in lst:
    print "day is in there"
    
day is in there


if "a" in phrase:
    print "a is in phrase"
    
a is in phrase


word = "hello"
word[1] = "a"
Traceback (most recent call last):
  File "C:\Users\Susan\AppData\Local\Enthought\Canopy\User\lib\site-packages\IPython\core\interactiveshell.py", line 2883, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-27-7d1643ad11f5>", line 1, in <module>
    word[1] = "a"
TypeError: 'str' object does not support item assignment

print lst
['This', 'is', 'a', 'lovely', 'day', 'today']

lst[1] = "was"
print lst
['This', 'was', 'a', 'lovely', 'day', 'today']






print phrase
This is a lovely day

print phrase.split()
['This', 'is', 'a', 'lovely', 'day']

x = phrase.split()
print x
['This', 'is', 'a', 'lovely', 'day']

print x.split()
Traceback (most recent call last):
  File "C:\Users\Susan\AppData\Local\Enthought\Canopy\User\lib\site-packages\IPython\core\interactiveshell.py", line 2883, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-35-6ad8078f8ab7>", line 1, in <module>
    print x.split()
AttributeError: 'list' object has no attribute 'split'


print phrase
This is a lovely day

print phrase.split("a")
['This is ', ' lovely d', 'y']

print phrase.split("y")
['This is a lovel', ' da', '']


phrase = "today is a really warm and cold day how is that?"
answer = []
for word in phrase.split():
    if word.startswith("t"):
        answer.append("word")
        
print answer
['word', 'word']



answer = []
for word in phrase.split():
    if word.startswith("t"):
        answer.append(word)
        
print answer
['today', 'that?']








print "123"*2
123123

print int("123")*2
246

print int("a")*2
Traceback (most recent call last):
  File "C:\Users\Susan\AppData\Local\Enthought\Canopy\User\lib\site-packages\IPython\core\interactiveshell.py", line 2883, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-52-be6e6a286d9b>", line 1, in <module>
    print int("a")*2
ValueError: invalid literal for int() with base 10: 'a'