Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:38:22) [MSC v.1600 32 bit (Intel)] on win32
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>>> ================================ RESTART ================================
>>> 
Please enter your name (or 0 to stop): Alice
Birthdate: 2/3/1980
Favorite color: yellow
record: Alice	2/3/1980	yellow
Please enter your name (or 0 to stop): Bob
Birthdate: 2/22/1981
Favorite color: blue
record: Bob	2/22/1981	blue
Please enter your name (or 0 to stop): 0
output: ['Alice\t2/3/1980\tyellow', 'Bob\t2/22/1981\tblue']
>>> ================================ RESTART ================================
>>> 
Please enter your name (or 0 to stop): Alice
Birthdate: 2/3/1980
Favorite color: yellow
record: Alice	2/3/1980	yellow

Please enter your name (or 0 to stop): Bob
Birthdate: 2/22/1981
Favorite color: blue
record: Bob	2/22/1981	blue

Please enter your name (or 0 to stop): 0
output: ['Alice\t2/3/1980\tyellow\n', 'Bob\t2/22/1981\tblue\n']
>>> ================================ RESTART ================================
>>> 
Please enter your name (or 0 to stop): Alice
Birthdate: 2/3/1980
Favorite color: yellow
Traceback (most recent call last):
  File "C:/Users/mil28/Desktop/writing_example3.py", line 10, in <module>
    record = '\t'.join(record)
TypeError: sequence item 2: expected str instance, int found
>>> record = ('Alice', '2/3/1980', 'yellow\n')
>>> record = ('Alice', '2/3/1980', 24, 'yellow\n')
>>> [str(a) for a in record if not isinstance(a, str)]
['24']
>>> str('cat')
'cat'
>>> ================================ RESTART ================================
>>> 
Please enter your name (or 0 to stop): Alice
Birthdate: 2/3/1980
Favorite color: yellow
record: Alice	2/3/1980	24	yellow

Please enter your name (or 0 to stop): Bob
Birthdate: 2/22/1981
Favorite color: blue
record: Bob	2/22/1981	24	blue

Please enter your name (or 0 to stop): 0
output: ['Alice\t2/3/1980\t24\tyellow\n', 'Bob\t2/22/1981\t24\tblue\n']
>>> ================================ RESTART ================================
>>> 
['Alice\t2/3/1980\t24\tyellow\n', 'Bob\t2/22/1981\t24\tblue\n']
>>> ================================ RESTART ================================
>>> 
['Alice\t2/3/1980\t24\tyellow\n', 'Bob\t2/22/1981\t24\tblue\n']
>>> ================================ RESTART ================================
>>> 
['Alice', '2/3/1980', '24', 'yellow']
['Bob', '2/22/1981', '24', 'blue']
>>> ================================ RESTART ================================
>>> 
1: ['Alice\t2/3/1980\t24\tyellow\n', 'Bob\t2/22/1981\t24\tblue\n']
2: []
>>> ================================ RESTART ================================
>>> 
['Alice', '2/3/1980', '24', 'yellow']
['Bob', '2/22/1981', '24', 'blue']
>>> ================================ RESTART ================================
>>> 
<class 'list'> <class 'str'> <class 'str'> <class 'str'> <class 'str'>
['Alice', '2/3/1980', '24', 'yellow']
<class 'list'> <class 'str'> <class 'str'> <class 'str'> <class 'str'>
['Bob', '2/22/1981', '24', 'blue']
>>> ================================ RESTART ================================
>>> 
['Alice', '2/3/1980', 24, 'yellow']
['Bob', '2/22/1981', 24, 'blue']
>>> a = [1, 2, 3, 4, 5, 6, 7]
>>> a[5:10]
[6, 7]
>>> del a[5:10]
>>> a
[1, 2, 3, 4, 5]
>>> sum(a)
15
>>> b = [1, 2, 3, 'a', 'b', 'c']
>>> sum(b)
Traceback (most recent call last):
  File "<pyshell#10>", line 1, in <module>
    sum(b)
TypeError: unsupported operand type(s) for +: 'int' and 'str'
>>> c = [1, 2, 3, 1.5, 2.5, 3.0]
>>> sum(c)
13.0
>>> d = "My cat is black."
>>> d.split()
['My', 'cat', 'is', 'black.']
>>> e = d.split()
>>> e
['My', 'cat', 'is', 'black.']
>>> ' '.join(e)
'My cat is black.'
>>> e.join(' ')
Traceback (most recent call last):
  File "<pyshell#18>", line 1, in <module>
    e.join(' ')
AttributeError: 'list' object has no attribute 'join'
>>> ' and '.join(e)
'My and cat and is and black.'
>>> c
[1, 2, 3, 1.5, 2.5, 3.0]
>>> b
[1, 2, 3, 'a', 'b', 'c']
>>> ' '.join(b)
Traceback (most recent call last):
  File "<pyshell#22>", line 1, in <module>
    ' '.join(b)
TypeError: sequence item 0: expected str instance, int found
>>> ' '.join([str(v) for v in b])
'1 2 3 a b c'
>>> if letter in ('a', 'e', 'i', 'o', 'u')
KeyboardInterrupt
>>> b
[1, 2, 3, 'a', 'b', 'c']
>>> z = b[3:10]
>>> z
['a', 'b', 'c']
>>> b[3:]
['a', 'b', 'c']
>>> b[3:len(b)]
['a', 'b', 'c']
>>> b[3::2]
['a', 'c']
>>> b[3:6]
['a', 'b', 'c']
>>> b
[1, 2, 3, 'a', 'b', 'c']
>>> b[3:5]
['a', 'b']
>>> b[3:len(b)]
['a', 'b', 'c']
>>> b[3:-1]
['a', 'b']
>>> b[len(b)-1]
'c'
>>> b[-1]
'c'
>>> len(b)
6
>>> b[5]
'c'
>>> b[-3:]
['a', 'b', 'c']
>>> b
[1, 2, 3, 'a', 'b', 'c']
>>> b[0:3]
[1, 2, 3]
>>> b[:3]
[1, 2, 3]
>>> b[1:5:2]
[2, 'a']
>>> b[1:6:2]
[2, 'a', 'c']
>>> b
[1, 2, 3, 'a', 'b', 'c']
>>> b[0:2:5]
[1]
>>>