smathieson@smathieson-20 disc-pg-gan % python3
Python 3.8.2 (default, Dec 21 2020, 15:06:04) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import random
>>> 
>>> 
>>> total = 0
>>> for i in range(10):
...     total += random.randrange(1,7) # die
... 
>>> total
41
>>> rolls = [random.randrange(1,7) for i in range(10)]
>>> rolls
[5, 6, 4, 5, 5, 4, 5, 6, 3, 1]
>>> rolls = [random.randrange(1,7) for i in range(10)]
>>> rolls
[2, 1, 2, 6, 5, 4, 1, 6, 5, 6]
>>> 
>>> import matplotlib.pyplot as plt
>>> 
>>> 
>>> 
>>> plt.plot(range(10), rolls)
[<matplotlib.lines.Line2D object at 0x11b8663a0>]
>>> plt.show()
>>> plt.scatter(range(10), rolls)
<matplotlib.collections.PathCollection object at 0x11baf99d0>
>>> plt.show()
>>> rolls = [random.randrange(1,7) for i in range(10000)]
>>> plt.hist(rolls)
(array([1649.,    0., 1641.,    0., 1692.,    0., 1620.,    0., 1666.,
       1732.]), array([1. , 1.5, 2. , 2.5, 3. , 3.5, 4. , 4.5, 5. , 5.5, 6. ]), <BarContainer object of 10 artists>)
>>> plt.show()
>>> random.random()
0.5151881918643507
>>> random.random()
0.9820611256833769
>>> random.random()
0.0004928543212465719
>>> random.random()
0.08001414800251094
>>> 
>>> 
>>> 
>>> import numpy as np
>>> 
>>> 
>>> arr = np.zeros((3,4))
>>> arr
array([[0., 0., 0., 0.],
       [0., 0., 0., 0.],
       [0., 0., 0., 0.]])
>>> arr[0,:]
array([0., 0., 0., 0.])
>>> arr[:,0]
array([0., 0., 0.])
>>> arr[:,0:3]
array([[0., 0., 0.],
       [0., 0., 0.],
       [0., 0., 0.]])
>>> arr[:,:3]
array([[0., 0., 0.],
       [0., 0., 0.],
       [0., 0., 0.]])
>>> 
>>> arr[2,1] = 7
>>> arr
array([[0., 0., 0., 0.],
       [0., 0., 0., 0.],
       [0., 7., 0., 0.]])
>>> arr.shape
(3, 4)
>>> 
>>> 
>>> 
>>> 
>>> a = [2,3,4]
>>> 
>>> 
>>> a.shape
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute 'shape'
>>> 
>>> 
>>> b = a
>>> 
>>> b
[2, 3, 4]
>>> 
>>> 
>>> b[1] = 8
>>> 
>>> 
>>> b
[2, 8, 4]
>>> 
>>> 
>>> 
>>> a
[2, 8, 4]
>>> 
>>> 
>>> x = 5
>>> y = x
>>> y
5
>>> y = 3
>>> x
5