exercises.py

import sys
import warnings
import numpy as np


def test_deprecation_warning():
    warnings.warn("This is a deprecated function, will disappear", DeprecationWarning)
    print 'still, the function continues'

def decypher(s):
    """Knowing that k -> m, o -> q, e -> g this function
    decyphers the string s and returns readable text."""
    return "".join(map(chr, [97+(ord(c)-95)%26 if c.isalpha() else ord(c) for c in s]))

def test_decypher():
    test_string = "g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddga"\
                  "gclr ylb rfyr'q ufw rfgq rcvr gq qm jmle."
  
    assert decypher(test_string) == "i hope you didnt translate it by hand. thats what computers are for. doing it in"\
                                    " by hand is inefficient and that's why this text is so long."


def sum_first_integers(N):
    """Function will return sum of integers up to and including N
    
    Args:
        N (int): Integer to go up to
    
    Returns:
        int: Sum of first N integers
    """
    return N*(N-1)/2 


def is_pangram(sentence):
  """Detect whether a sentence is a pangram
  """ 
  ref_sentence="thequickbrownfoxjumpsoverthelazydog"

  sentence = sentence.lower()
  sentence =  sentence.replace(" ", "")

  return not (set(ref_sentence) - set(sentence))


def is_vowel(c):
    """
   
    This was a difficult
    :param c: a letter
    :type: string
    """
    return c in 'aeoiuy'


def sum_n(number):
    """
    Function that returns the sum of the first N integers.
    """
    numbers = np.arange(int(number)+1)
    return np.sum(numbers)

def sum(numbers):
	total = 0;
	for num in numbers:
		total += num
	return total;
>>>>>>> 702082a5f917009d03b6629abc4bfcae1b95d79c

def multiply(numbers):
	total = 1;
	for num in numbers:
		total *= num
	return total;


if __name__ == '__main__':
    pass