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(base) MAC:Mon Mar 01:09:08:~> B
(base) MAC:Mon Mar 01:09:08:4240> cd ch4
(base) MAC:Mon Mar 01:09:08:ch4> mkdir 0301B 
(base) MAC:Mon Mar 01:09:08:ch4> cd 0301B
(base) MAC:Mon Mar 01:09:08:0301B> ls
(base) MAC:Mon Mar 01:09:08:0301B> python
Python 3.8.5 (default, Sep  4 2020, 02:22:02) 
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import random
>>> dir(random)
['BPF', 'LOG4', 'NV_MAGICCONST', 'RECIP_BPF', 'Random', 'SG_MAGICCONST', 'SystemRandom', 'TWOPI', '_Sequence', '_Set', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', '_accumulate', '_acos', '_bisect', '_ceil', '_cos', '_e', '_exp', '_inst', '_log', '_os', '_pi', '_random', '_repeat', '_sha512', '_sin', '_sqrt', '_test', '_test_generator', '_urandom', '_warn', 'betavariate', 'choice', 'choices', 'expovariate', 'gammavariate', 'gauss', 'getrandbits', 'getstate', 'lognormvariate', 'normalvariate', 'paretovariate', 'randint', 'random', 'randrange', 'sample', 'seed', 'setstate', 'shuffle', 'triangular', 'uniform', 'vonmisesvariate', 'weibullvariate']
>>> print(random.randint.__doc__)
Return random integer in range [a, b], including both end points.
        
>>> random.randint(1,6)
2
>>> random.randint(1,6)
1
>>> random.randint(1,6)
4
>>> random.randint(1,6)
6
>>> random.randint(1,6)
2
>>> (random.randint(1,6),random.randint(1,6))
(2, 5)
>>> (random.randint(1,6),random.randint(1,6))
(3, 3)
>>> x = [1,2,3,4,5,6]
>>> random.shuffle(x)
>>> x
[1, 4, 6, 2, 5, 3]
>>> x
[1, 4, 6, 2, 5, 3]
>>> random.shuffle(x)
>>> x
[6, 4, 3, 1, 2, 5]
>>> x
[6, 4, 3, 1, 2, 5]
>>> random.choice(x)
6
>>> random.choice(x)
1
>>> random.choice(x)
5
>>> random.sample(x, 3)
[3, 2, 4]
>>> random.sample(x, 3)
[5, 4, 1]
>>> random.sample(x, 3)
[3, 6, 5]
>>> 
(base) MAC:Mon Mar 01:09:32:0301B> vi eightball.py
(base) MAC:Mon Mar 01:09:36:0301B> python eightball.py 
Enter your question:   Is is raining outside?
The answer to your question
Is is raining outside?
is {random.choice(replies)}
(base) MAC:Mon Mar 01:09:36:0301B> !vi
vi eightball.py
(base) MAC:Mon Mar 01:09:36:0301B> !p
python eightball.py 
Enter your question:   Is is raining outside?
The answer to your question
Is is raining outside?
is Don't count on it.
(base) MAC:Mon Mar 01:09:36:0301B> python
Python 3.8.5 (default, Sep  4 2020, 02:22:02) 
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import random
>>> random.random()
0.13212661879466792
>>> random.random()
0.8637168910820039
>>> random.random()
0.982909339902225
>>> random.uniform(0,10)
8.579159479118163
>>> random.uniform(0,10)
3.8694437072194834
>>> random.uniform(0,10)
6.754578729500322
>>> random.uniform(0,10)
1.6187927982936734
>>> random.uniform(0,10)
9.929038622798107
>>> 
(base) MAC:Mon Mar 01:09:42:0301B> pythoh
-bash: pythoh: command not found
(base) MAC:Mon Mar 01:09:44:0301B> python
Python 3.8.5 (default, Sep  4 2020, 02:22:02) 
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> s = "cowabunga"
>>> for k in s:
...     print(k)
... 
c
o
w
a
b
u
n
g
a
>>> for k in s:
...     print(k.upper(), end = "")
... 
COWABUNGA>>> for k in s:
... 
KeyboardInterrupt
>>> for k in s:
...     if k <= "M
  File "<stdin>", line 2
    if k <= "M
             ^
SyntaxError: EOL while scanning string literal
>>> for k in s:
...     if k <= "m":
...             print(k)
... 
c
a
b
g
a
>>> xmas = ["Charcoal", "Horsefeathers", "Nasty bugs"]
>>> for k in xmas:
...     print(k)
... 
Charcoal
Horsefeathers
Nasty bugs
>>> tuple = (1,2,3,4,True)
>>> for  in tuple:
  File "<stdin>", line 1
    for  in tuple:
         ^
SyntaxError: invalid syntax
>>> for k  in tuple:
...     print(k)
... 
1
2
3
4
True
>>> s = {"shampoo", "toothpaste", "deodorant", "shaving cream"}
>>> for k in s:
...     print(k)
... 
shampoo
shaving cream
deodorant
toothpaste
>>> words = {
... 
... 
KeyboardInterrupt
>>> words = {"cat":"feline", "sheep", "ovine", "pig": "porcine", "horse":"equine"}
  File "<stdin>", line 1
    words = {"cat":"feline", "sheep", "ovine", "pig": "porcine", "horse":"equine"}
                                    ^
SyntaxError: invalid syntax
>>> words = {"cat":"feline", "sheep": "ovine", "pig": "porcine", "horse":"equine"}
>>> words
{'cat': 'feline', 'sheep': 'ovine', 'pig': 'porcine', 'horse': 'equine'}
>>> for k in words: 
...     print(k)
... 
cat
sheep
pig
horse
>>> for k in words: 
...     print(words[k])
... 
feline
ovine
porcine
equine
>>> for k in words.values():
...     print(k)
... 
feline
ovine
porcine
equine
>>> type(words.values)
<class 'builtin_function_or_method'>
>>> type(words.values())
<class 'dict_values'>
>>> for k in dictionary.keys():
...     print(k)
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'dictionary' is not defined
>>> for k in words.keys():
...     print(k)
... 
cat
sheep
pig
horse
>>> for k in range(5):
...     print(k)
... 
0
1
2
3
4
>>> for k in range(1,5):
...     print(k)
... 
1
2
3
4
>>> for k in range(1,5,2):
...     print(k)
... 
1
3
>>> for k in range(1,6,2):
...     print(k)
... 
1
3
5
>>> for k in range(0, 1, .1):
...     print(k)
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'float' object cannot be interpreted as an integer
>>> 
(base) MAC:Mon Mar 01:09:59:0301B> ls
eightball.py
(base) MAC:Mon Mar 01:09:59:0301B> vi show.py
(base) MAC:Mon Mar 01:10:02:0301B> python show.py eightball.py 
import random

question = input("Enter your question:   ")

replies = ["As I see it, yes.", "Ask again later.", "Better not tell you now.", "Cannot predict now.", "Concentrate and ask again.", "Don't count on it.", "It is certain.", "It is decidedly so."]

print("The answer to your question")

print(question)

print (f"is {random.choice(replies)}")

(base) MAC:Mon Mar 01:10:02:0301B> !vi
vi show.py
(base) MAC:Mon Mar 01:10:03:0301B> python show.py eightball.py 
import random
question = input("Enter your question:   ")
replies = ["As I see it, yes.", "Ask again later.", "Better not tell you now.", "Cannot predict now.", "Concentrate and ask again.", "Don't count on it.", "It is certain.", "It is decidedly so."]
print("The answer to your question")
print(question)
print (f"is {random.choice(replies)}")
(base) MAC:Mon Mar 01:10:03:0301B> vi eight_times.py
(base) MAC:Mon Mar 01:10:04:0301B> python eight_times.py 
repeat
repeat
repeat
repeat
repeat
repeat
repeat
repeat
(base) MAC:Mon Mar 01:10:04:0301B> vi this.txt
(base) MAC:Mon Mar 01:10:06:0301B> vi make_this.py
(base) MAC:Mon Mar 01:10:09:0301B> python make_this.py 
*
**
***
****
*****
******
*******
(base) MAC:Mon Mar 01:10:09:0301B> !vi
vi make_this.py
(base) MAC:Mon Mar 01:10:17:0301B>