ImportError: Cannot imporrt name SystemRandom

Reproducing code example:

import numpy as np
import matplotlib.pyplot as plt
import time
import numpy as np
ysample = np.random.randint(-50, 50, 100)
xdata = []
ydata = []
plt.show()
axes = plt.gca()
axes.set_xlim(0, 100)
axes.set_ylim(-50, +50)
line, = axes.plot(xdata, ydata, 'r-')
for i in range(100):
    xdata.append(i)
    ydata.append(ysample[i])
    line.set_xdata(xdata)
    line.set_ydata(ydata)
    plt.draw()
    plt.pause(1e-17)
    time.sleep(0.1)
plt.show()

from . import random File “C:\Miniconda\envs\cv_course\lib\site-packages\numpy\random_init_.py”, line 181, in <module> from . import _pickle File “C:\Miniconda\envs\cv_course\lib\site-packages\numpy\random_pickle.py”, line 1, in <module> from .mtrand import RandomState File “mtrand.pyx”, line 9, in init numpy.random.mtrand File “mt19937.pyx”, line 1, in init numpy.random.mt19937 File “bit_generator.pyx”, line 43, in init numpy.random.bit_generator

Numpy/Python version information:

1.17.3

[rkern]

Do you have a module named random.py somewhere that isn’t the standard library’s random module? For example, is this script that you posted for us named random.py?

[WarrenWeckesser]

Thanks @neilmolky. secrets is a module in the Python standard library, and it is used by NumPy in the bit_generator code of the random module: https://github.com/numpy/numpy/blob/6932eff2c2f634e9b88e940b9f5c02a24b6e71f6/numpy/random/bit_generator.pyx#L38

So if you have a Python file called secrets.py that shadows the standard library, it will break NumPy’s random module.