Python & ML tasks
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2 photos
3 links
Python, functions, classes, iterators, generators, numpy, pandas, scikit-learn, TensorFlow
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What will this code do?
class A:
def __iter__(self):
yield from range(10)
a = A()
print(5 in a, 20 in a)
What will this code do?
def g(f1, f2, x):
return f1(x) + f2(x) if x else 0
f1, f2 = lambda x: x**3/abs(x), lambda x: x % 2
x = 121
g(f1, f2, -x) + g(f1, f2, x)
What will this code do?
import re
sent = 'Hello, Ben! How are you doing?'
lister = filter(None, re.split("[,!?]+", sent))
print(len(list(lister)))
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Given code
def f(n):
def g(x):
return x ** n
return g

g = f(3)
print(g(2), g(3))
What will this code do?
from itertools import product
a = [1, 2]
b = [3, 4]
sum(sum(product(a, b), (0, 0)))
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What will this code do?
def f(x):
try:
print('1', end=" ")
y = 1 * 0 if x % 2 else 1 / 0
except:
y = 0
print('2', end=" ")
else:
print('3', end=" ")
finally:
print('4', end=" ")
return y

print(f(1) + f(2))
What will this code do?
class A:
def __init__(self, x=0):
self.x = x
def f(self):
print(self.x)
a = A(2020)
f = a.f
print(f.__self__ is a, end=" ")
print(f.__func__ is f, end=" ")
print(f.__func__ is a.f, end=" ")
print(f.__func__ is A.f, end=" ")
👍1
What will this code do?
import numpy as np
print(np.asarray([100, 200, 300]).astype(np.int8))
What will this code do?
import numpy as np
print(np.uint8(1 - 2))