Last login: Mon Jan  5 08:44:05 on ttys000
odd% python
Python 2.7.6 (default, Sep  9 2014, 15:04:36) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 
odd% ipython
Python 2.7.6 (default, Sep  9 2014, 15:04:36) 
Type "copyright", "credits" or "license" for more information.

IPython 2.0.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: 
Do you really want to exit ([y]/n)? 
odd% python
Python 2.7.6 (default, Sep  9 2014, 15:04:36) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> for i in xrange(5):
...  print i
... 
0
1
2
3
4
>>> 
odd% 
odd% ipython
Python 2.7.6 (default, Sep  9 2014, 15:04:36) 
Type "copyright", "credits" or "license" for more information.

IPython 2.0.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: for i in xrange(5):
   ...:     print i
   ...:     
0
1
2
3
4

In [2]: 1+1
Out[2]: 2

In [3]: 5*25
Out[3]: 125

In [4]: 2^3
Out[4]: 1

In [5]: 2**3
Out[5]: 8

In [6]: 2-5
Out[6]: -3

In [7]: 7/3
Out[7]: 2

In [8]: 7.0/3.0
Out[8]: 2.3333333333333335

In [9]: 7/3.0
Out[9]: 2.3333333333333335

In [10]: 2.0*(7/3)
Out[10]: 4.0

In [11]: 2.0*(7.0/3.0)
Out[11]: 4.666666666666667

In [12]: sqrt(16.0)
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-12-50fe1418fd25> in <module>()
----> 1 sqrt(16.0)

NameError: name 'sqrt' is not defined

In [13]: import math

In [14]: math.sqrt(16.0)
Out[14]: 4.0

In [15]: math.sin(.5)
Out[15]: 0.479425538604203

In [16]: from math import *

In [17]: sqrt(5)
Out[17]: 2.23606797749979

In [18]: sqrt(-1)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-18-e94865f03ce3> in <module>()
----> 1 sqrt(-1)

ValueError: math domain error

In [19]: import cmath

In [20]: cmath.sqrt(-1)
Out[20]: 1j

In [21]: from cmath import *

In [22]: sqrt(-1)
Out[22]: 1j

In [23]: import math

In [24]: from math import *

In [25]: import cmath

In [26]: sqrt(-1)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-26-e94865f03ce3> in <module>()
----> 1 sqrt(-1)

ValueError: math domain error

In [27]: cmath.sqrt(-1)
Out[27]: 1j

In [28]: sin(.5)
Out[28]: 0.479425538604203

In [29]: sin=3

In [30]: sin(.5)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-30-14bb8bdb862a> in <module>()
----> 1 sin(.5)

TypeError: 'int' object is not callable

In [31]: and=5
  File "<ipython-input-31-730e631a28d2>", line 1
    and=5
      ^
SyntaxError: invalid syntax


In [32]: from math import *

In [33]: sin(.5)
Out[33]: 0.479425538604203

In [34]: help(math)


In [35]: 5
Out[35]: 5

In [36]: 5.0
Out[36]: 5.0

In [37]: "abcdef"
Out[37]: 'abcdef'

In [38]: 'abcdef'
Out[38]: 'abcdef'

In [39]: "I can't wake up today"
Out[39]: "I can't wake up today"

In [40]: 'I can't wake up today'
  File "<ipython-input-40-6f202aaa44ff>", line 1
    'I can't wake up today'
           ^
SyntaxError: invalid syntax


In [41]: """this is a test"""
Out[41]: 'this is a test'

In [42]: """this 
   ....: is 
   ....: a 
   ....: test
   ....: """
Out[42]: 'this \nis \na \ntest\n'

In [43]: print 'this \nis \na \ntest\n'
this 
is 
a 
test


In [44]: 'this is a \ character'
Out[44]: 'this is a \\ character'

In [45]: 'this is a \\ character'
Out[45]: 'this is a \\ character'

In [46]: 'this is a \character'
Out[46]: 'this is a \\character'

In [47]: a=5

In [48]: b=10

In [49]: a+b
Out[49]: 15

In [50]: a="abc"

In [51]: a
Out[51]: 'abc'

In [52]: abc="abc"

In [53]: abc
Out[53]: 'abc'

In [54]: a1b="abc"

In [55]: a1b
Out[55]: 'abc'

In [56]: list()
Out[56]: []

In [57]: list=5

In [58]: list()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-58-8b11f83c3293> in <module>()
----> 1 list()

TypeError: 'int' object is not callable

In [59]: 
Do you really want to exit ([y]/n)? 
odd% ipython
Python 2.7.6 (default, Sep  9 2014, 15:04:36) 
Type "copyright", "credits" or "license" for more information.

IPython 2.0.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: a="abc"

In [2]: b="def"

In [3]: a+b
Out[3]: 'abcdef'

In [4]: a*3
Out[4]: 'abcabcabc'

In [5]: a/3
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-5-6279089000d2> in <module>()
----> 1 a/3

TypeError: unsupported operand type(s) for /: 'str' and 'int'

In [6]: a=[1,2,3,4]

In [7]: a
Out[7]: [1, 2, 3, 4]

In [8]: a=["abc","def","ghi"]

In [9]: a
Out[9]: ['abc', 'def', 'ghi']

In [10]: a=["abc","def","ghi",1,2,3]

In [11]: a
Out[11]: ['abc', 'def', 'ghi', 1, 2, 3]

In [12]: a=(1,2,3)

In [13]: a
Out[13]: (1, 2, 3)

In [14]: a=[1,2,3]

In [15]: a=[1,2,3,4,5,6]

In [16]: a[1]
Out[16]: 2

In [17]: a[0]
Out[17]: 1

In [18]: a[-1]
Out[18]: 6

In [19]: a[-3]
Out[19]: 4

In [20]: a[::2]
Out[20]: [1, 3, 5]

In [21]: a[1:3]
Out[21]: [2, 3]

In [22]: a[1:4]
Out[22]: [2, 3, 4]

In [23]: a[1:]
Out[23]: [2, 3, 4, 5, 6]

In [24]: a[1:4:2]
Out[24]: [2, 4]

In [25]: a[1,-1]
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-25-351ba959ea83> in <module>()
----> 1 a[1,-1]

TypeError: list indices must be integers, not tuple

In [26]: a[1:-1]
Out[26]: [2, 3, 4, 5]

In [27]: a="alphabet soup"

In [28]: a
Out[28]: 'alphabet soup'

In [29]: a[3:8]
Out[29]: 'habet'

In [30]: a[3:8:2]
Out[30]: 'hbt'

In [31]: b=[1,2,3,4,5,6]

In [32]: b
Out[32]: [1, 2, 3, 4, 5, 6]

In [33]: b[3]=22

In [34]: b
Out[34]: [1, 2, 3, 22, 5, 6]

In [35]: b=(1,2,3,4,5,6)

In [36]: b
Out[36]: (1, 2, 3, 4, 5, 6)

In [37]: b[3]=22
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-37-bfb416c3a4e4> in <module>()
----> 1 b[3]=22

TypeError: 'tuple' object does not support item assignment

In [38]: a="abcdef"

In [39]: a[3]
Out[39]: 'd'

In [40]: a[3]="x"
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-40-5c1e8a533def> in <module>()
----> 1 a[3]="x"

TypeError: 'str' object does not support item assignment

In [41]: a="abcdefg"

In [42]: a
Out[42]: 'abcdefg'

In [43]: a.upper()
Out[43]: 'ABCDEFG'

In [44]: help(str)


In [45]: a="abcdefabcdefabcdef"

In [46]: a
Out[46]: 'abcdefabcdefabcdef'

In [47]: a.count("e")
Out[47]: 3

In [48]: a.count("ef")
Out[48]: 3

In [49]: a=[1,2,3,4]

In [50]: a
Out[50]: [1, 2, 3, 4]

In [51]: a[2]=99

In [52]: a
Out[52]: [1, 2, 99, 4]

In [53]: a[4]=111
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-53-3cbe51c5c516> in <module>()
----> 1 a[4]=111

IndexError: list assignment index out of range

In [54]: a.append(999)

In [55]: a
Out[55]: [1, 2, 99, 4, 999]

In [56]: b=[1,2,3]

In [57]: a+b
Out[57]: [1, 2, 99, 4, 999, 1, 2, 3]

In [58]: a.extend(b)

In [59]: a
Out[59]: [1, 2, 99, 4, 999, 1, 2, 3]

In [60]: c=a+b

In [61]: c
Out[61]: [1, 2, 99, 4, 999, 1, 2, 3, 1, 2, 3]

In [62]: c
Out[62]: [1, 2, 99, 4, 999, 1, 2, 3, 1, 2, 3]

In [63]: del c[2]

In [64]: c
Out[64]: [1, 2, 4, 999, 1, 2, 3, 1, 2, 3]

In [65]: c.remove(999)

In [66]: c
Out[66]: [1, 2, 4, 1, 2, 3, 1, 2, 3]

In [67]: c.remove(1)

In [68]: c
Out[68]: [2, 4, 1, 2, 3, 1, 2, 3]

In [69]: c.remove(999)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-69-9ab0cb1f0ef6> in <module>()
----> 1 c.remove(999)

ValueError: list.remove(x): x not in list

In [70]: c
Out[70]: [2, 4, 1, 2, 3, 1, 2, 3]

In [71]: c.index(3)
Out[71]: 4

In [72]: c.index(99)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-72-35c37840f870> in <module>()
----> 1 c.index(99)

ValueError: 99 is not in list

In [73]: c
Out[73]: [2, 4, 1, 2, 3, 1, 2, 3]

In [74]: c.sort()

In [75]: c
Out[75]: [1, 1, 2, 2, 2, 3, 3, 4]

In [76]: a={1,3,4,5,8}

In [77]: a
Out[77]: {1, 3, 4, 5, 8}

In [78]: a={1,3,4,5,8,5,1,8}

In [79]: a
Out[79]: {1, 3, 4, 5, 8}

In [80]: b={3,4,5,1,8}

In [81]: a==b
Out[81]: True

In [82]: a
Out[82]: {1, 3, 4, 5, 8}

In [83]: b
Out[83]: {1, 3, 4, 5, 8}

In [84]: b={3,4,9}

In [85]: a
Out[85]: {1, 3, 4, 5, 8}

In [86]: b
Out[86]: {3, 4, 9}

In [87]: a+b
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-87-f1d53b280433> in <module>()
----> 1 a+b

TypeError: unsupported operand type(s) for +: 'set' and 'set'

In [88]: a|b
Out[88]: {1, 3, 4, 5, 8, 9}

In [89]: a.union(b_
   ....: a.union(b)
   ....: 
KeyboardInterrupt

In [89]: a.union(b)
Out[89]: {1, 3, 4, 5, 8, 9}

In [90]: a.intersection(b)
Out[90]: {3, 4}

In [91]: a={"a","bbb","ccccc"}

In [92]: a
Out[92]: {'a', 'bbb', 'ccccc'}

In [93]: a="this is a test"

In [94]: a
Out[94]: 'this is a test'

In [95]: b=set(a)

In [96]: b
Out[96]: {' ', 'a', 'e', 'h', 'i', 's', 't'}

In [97]: a={1:"a",2:"b",3:"c",4:"d"}

In [98]: a
Out[98]: {1: 'a', 2: 'b', 3: 'c', 4: 'd'}

In [99]: a[2]
Out[99]: 'b'

In [100]: a[7]
---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-100-0a89b255b1fb> in <module>()
----> 1 a[7]

KeyError: 7

In [101]: a[2]
Out[101]: 'b'

In [102]: a[2]="X"

In [103]: a[2]
Out[103]: 'X'

In [104]: a
Out[104]: {1: 'a', 2: 'X', 3: 'c', 4: 'd'}

In [105]: a[22]=99

In [106]: a
Out[106]: {1: 'a', 2: 'X', 3: 'c', 4: 'd', 22: 99}

In [107]: a[22]
Out[107]: 99

In [108]: a["xxx"]="abc"

In [109]: a
Out[109]: {1: 'a', 2: 'X', 3: 'c', 4: 'd', 22: 99, 'xxx': 'abc'}

In [110]: a["xxx"]
Out[110]: 'abc'

In [111]: a[(1,2,3)]="xyz"

In [112]: a
Out[112]: {1: 'a', 2: 'X', 3: 'c', 4: 'd', 22: 99, 'xxx': 'abc', (1, 2, 3): 'xyz'}

In [113]: a[(1,2,3)]
Out[113]: 'xyz'

In [114]: a[[1,2,3]]="aaa"
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-114-d5965815d2df> in <module>()
----> 1 a[[1,2,3]]="aaa"

TypeError: unhashable type: 'list'

In [115]: b
Out[115]: {' ', 'a', 'e', 'h', 'i', 's', 't'}

In [116]: b=(1,2,3)

In [117]: a[b]=99

In [118]: a
Out[118]: {1: 'a', 2: 'X', 3: 'c', 4: 'd', 22: 99, 'xxx': 'abc', (1, 2, 3): 99}

In [119]: b[1]=66
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-119-5887a2c313f6> in <module>()
----> 1 b[1]=66

TypeError: 'tuple' object does not support item assignment

In [120]: