pimento[~]$ fixscreenmirror
pimento[~]$ cd cs21/
pimento[cs21]$ update21
No new updates found. Last two updates shown below

73 minutes ago Mon Oct 9 09:11:15 2017 -0400
inclass/week06/build_list.py
inclass/week06/shuffle_list.py

3 days ago Fri Oct 6 17:57:37 2017 -0400
labs/05/QUESTIONS-05.txt
labs/05/lineart.py
labs/05/night.py
pimento[cs21]$ cd inclass/week06/
pimento[week06]$ ls
build_list.py  shuffle_list.py
pimento[week06]$ atom build_list.py
pimento[week06]$
pimento[week06]$
pimento[week06]$ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> lst1 = [5, 3, 7, 10, 12]
>>>
>>> lst1.append(15)
>>>
>>> lst1
[5, 3, 7, 10, 12, 15]
>>>
>>> lst1.append(7)
>>>
>>>
>>> lst1
[5, 3, 7, 10, 12, 15, 7]
>>>
>>> lst1[0]
5
>>> lst1[0] = 10
>>> lst1
[10, 3, 7, 10, 12, 15, 7]
>>>
>>> s = "swarthmore"
>>> s[0]
's'
>>> s[0] = "S"
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment
>>>
>>> lst1
[10, 3, 7, 10, 12, 15, 7]
>>>
>>> lst2 = lst1
>>>
>>> lst2
[10, 3, 7, 10, 12, 15, 7]
>>>
>>> lst2[0] = 50
>>> lst2
[50, 3, 7, 10, 12, 15, 7]
>>>
>>> lst1
[50, 3, 7, 10, 12, 15, 7]
>>> lst1[2] = -5
>>>
>>> lst1
[50, 3, -5, 10, 12, 15, 7]
>>> lst2
[50, 3, -5, 10, 12, 15, 7]
>>>
>>>
>>> t = s
>>>
>>> s
'swarthmore'
>>> t
'swarthmore'
>>>
>>> s +t
'swarthmoreswarthmore'
>>>
>>> lst1
[50, 3, -5, 10, 12, 15, 7]
>>>
>>> lst3 = [20,6]
>>>
>>> lst1 + lst3
[50, 3, -5, 10, 12, 15, 7, 20, 6]
>>> lst4 = lst1 + lst3
>>>
>>> lst1
[50, 3, -5, 10, 12, 15, 7]
>>> lst3
[20, 6]
>>> lst4
[50, 3, -5, 10, 12, 15, 7, 20, 6]
>>> exit()
pimento[week06]$ python3 build_list.py
[1, 5, -4, 13, -3, 7, 11, -3, 7, 8]
[1, 5, 0, 13, 0, 7, 11, 0, 7, 8]
pimento[week06]$ python3 build_list.py
enter a number: 5
enter a number: 3
enter a number: -2
enter a number: -9
enter a number: 10
[5, 3, -2, -9, 10]
pimento[week06]$
pimento[week06]$
pimento[week06]$
pimento[week06]$ python3 build_list.py
enter a number: 5
enter a number: 3
enter a number: -2
enter a number: -9
enter a number: 1-
Traceback (most recent call last):
  File "build_list.py", line 43, in <module>
    main()
  File "build_list.py", line 35, in main
    num = int(input("enter a number: "))
ValueError: invalid literal for int() with base 10: '1-'
pimento[week06]$
pimento[week06]$ python3 build_list.py
enter a number: 5
enter a number: 3
enter a number: -2
enter a number: -9
enter a number: 10
[5, 3, -2, -9, 10]
[5, 3, 0, 0, 10]
pimento[week06]$ atom shuffle_list.py
pimento[week06]$
pimento[week06]$ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> x = 4
>>> y = 7
>>>
>>> # want to swap x and y
...
>>>
>>> x = y
>>> y = x
>>>
>>> x
7
>>> y
7
>>>
>>> x = 4
>>> y = 7
>>>
>>> temp = x
>>> temp
4
>>>
>>> x = y
>>> x
7
>>> y
7
>>> temp
4
>>> y = temp
>>>
>>> x
7
>>> y
4
>>> exit()
pimento[week06]$