import numpy as np
import sys

np.random.rand(10)

np.sin(_)

print("hi, stdout")

from __future__ import print_function
print('hi, stderr', file=sys.stderr)

import time, sys
for i in range(8):
    print(i)
    time.sleep(0.5)

for i in range(50):
    print(i)

for i in range(500):
    print(2**i - 1)

from __future__ import print_function
import sys

%%capture
print('hi, stdout')
print('hi, stderr', file=sys.stderr)

%%capture captured
print('hi, stdout')
print('hi, stderr', file=sys.stderr)

captured

captured()

captured.stdout

captured.stderr

%matplotlib inline
import matplotlib.pyplot as plt
import numpy as np

%%capture wontshutup

print("setting up X")
x = np.linspace(0,5,1000)
print("step 2: constructing y-data")
y = np.sin(x)
print("step 3: display info about y")
plt.plot(x,y)
print("okay, I'm done now")

wontshutup()

%%capture cap --no-stderr
print('hi, stdout')
print("hello, stderr", file=sys.stderr)

cap.stdout

cap.stderr

cap.outputs