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897f1d0fb4
* Improved Formatting and Style
I improved formatting and style to make PyLama happier.
Linters used:
- mccabe
- pep257
- pydocstyle
- pep8
- pycodestyle
- pyflakes
- pylint
- isort
* Create volume.py
This script calculates the volumes of various shapes.
* Delete lucasSeries.py
* Revert "Delete lucasSeries.py"
This reverts commit 64c19f7a6c.
* Update lucasSeries.py
58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
"""Prime Check."""
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import math
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import unittest
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def prime_check(number):
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"""
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Check to See if a Number is Prime.
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A number is prime if it has exactly two dividers: 1 and itself.
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"""
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if number < 2:
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# Negatives, 0 and 1 are not primes
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return False
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if number < 4:
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# 2 and 3 are primes
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return True
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if number % 2 == 0:
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# Even values are not primes
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return False
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# Except 2, all primes are odd. If any odd value divide
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# the number, then that number is not prime.
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odd_numbers = range(3, int(math.sqrt(number)) + 1, 2)
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return not any(number % i == 0 for i in odd_numbers)
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class Test(unittest.TestCase):
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def test_primes(self):
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self.assertTrue(prime_check(2))
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self.assertTrue(prime_check(3))
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self.assertTrue(prime_check(5))
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self.assertTrue(prime_check(7))
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self.assertTrue(prime_check(11))
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self.assertTrue(prime_check(13))
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self.assertTrue(prime_check(17))
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self.assertTrue(prime_check(19))
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self.assertTrue(prime_check(23))
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self.assertTrue(prime_check(29))
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def test_not_primes(self):
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self.assertFalse(prime_check(-19),
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"Negative numbers are not prime.")
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self.assertFalse(prime_check(0),
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"Zero doesn't have any divider, primes must have two")
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self.assertFalse(prime_check(1),
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"One just have 1 divider, primes must have two.")
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self.assertFalse(prime_check(2 * 2))
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self.assertFalse(prime_check(2 * 3))
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self.assertFalse(prime_check(3 * 3))
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self.assertFalse(prime_check(3 * 5))
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self.assertFalse(prime_check(3 * 5 * 7))
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if __name__ == '__main__':
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unittest.main()
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