Adding in Lesson1 assignments under /students/visokoo

students/visokoo/00-README.md

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+### About Me
+
+#### Intro
+I started out in the tech world as a Helpdesk Specialist and was given 
+the opportunity move into the DevOps space about 2 years ago. It was a 
+rollercoaster ride going from full Windows to Linux but I loved every
+moment of it.
+
+I've done some basic coding with ruby for some day to day tasks but I'm
+really hoping to be able to do more with python like writing full-fledged
+web apps or just something better than your standard script.
+
+In my freetime I generally enjoy:
+
+- Playing boardgames...
+- Playing console/PC games...
+- Thinking about solutions for work...
+- Eating too much...
+- Outdoor activities such as hiking, snowboarding, etc.
+
+### Goal
+
+I've done some basic coding with ruby for some day to day tasks but I'm
+really hoping to be able to do more with python like writing full-fledged
+web apps/cli tools or just something better than your standard script.  

students/visokoo/lesson1_assignments/break_me.py

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+'''
+----------------------------------------------------
+Assignment: Explore Errors
+Author: visokoo | Created: 1/13/2019
+ChangeLog: 1/13/2019, Created file 
+
+Create a script with four exceptions
+----------------------------------------------------
+
+'''
+
+def name_error(x):
+  print(y)
+
+#name_error(x)
+
+def value_error(x):
+  int(x)
+  print(x, "blah")
+
+#value_error("duh")
+
+def zero_division(x):
+  return x / 0
+
+#zero_division(2)
+
+#def syntax_error(x)
+#  print(x)

students/visokoo/lesson1_assignments/diff21.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - diff21.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file 
+
+Given an int n, return the absolute difference between n and 21, 
+except return double the absolute difference if n is over 21.
+
+diff21(19) → 2
+diff21(10) → 11
+diff21(21) → 0
+----------------------------------------------------
+
+'''
+
+def diff21(n):
+  if n > 21:
+    return abs(21-n)*2
+  else:
+    return abs(21-n)

students/visokoo/lesson1_assignments/makes10.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - makes10.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file 
+
+Given 2 ints, a and b, return True if one if them is 10 or if their sum is 10.
+
+makes10(9, 10) → True
+makes10(9, 9) → False
+makes10(1, 9) → True
+----------------------------------------------------
+
+'''
+
+def makes10(a,b):
+  if a == 10 or b == 10:
+    return True
+  elif a + b == 10:
+    return True
+  else:
+    return False

students/visokoo/lesson1_assignments/near_hundred.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - near_hundred.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file 
+
+Given an int n, return True if it is within 10 of 100 or 200. 
+Note: abs(num) computes the absolute value of a number.
+
+near_hundred(93) → True
+near_hundred(90) → True
+near_hundred(89) → False
+----------------------------------------------------
+
+'''
+
+def near_hundred(n):
+  return abs(100 - n) <= 10 or abs(200-n) <= 10

students/visokoo/lesson1_assignments/parrot_trouble.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - parrot_trouble.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file
+
+We have a loud talking parrot. The "hour" parameter is the current 
+hour time in the range 0..23. We are in trouble if the parrot is 
+talking and the hour is before 7 or after 20. Return True if we are 
+in trouble.
+
+parrot_trouble(True, 6) → True
+parrot_trouble(True, 7) → False
+parrot_trouble(False, 6) → False
+----------------------------------------------------
+
+'''
+
+def parrot_trouble(talking, hour):
+  if talking == True and (hour < 7 or hour > 20):
+    return True
+  else:
+    return False

students/visokoo/lesson1_assignments/pos_neg.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - pos_neg.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file 
+
+
+Given 2 int values, return True if one is negative and one is 
+positive. Except if the parameter "negative" is True, then 
+return True only if both are negative.
+
+pos_neg(1, -1, False) → True
+pos_neg(-1, 1, False) → True
+pos_neg(-4, -5, True) → True
+----------------------------------------------------
+
+'''
+
+def pos_neg(a, b, negative):
+  if negative == True:
+    return (a < 0 and b < 0)
+  else:
+    return (a < 0 and b > 0) or (a > 0 and b < 0)
+

students/visokoo/lesson1_assignments/sum_double.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 1 - sum_double.py
+Author: visokoo | Created: 1/9/2019
+ChangeLog: 1/9/2019, Created file 
+
+
+Given two int values, return their sum. Unless the two values 
+are the same, then return double their sum.
+
+
+sum_double(1, 2) → 3
+sum_double(3, 2) → 5
+sum_double(2, 2) → 8
+----------------------------------------------------
+
+'''
+
+def sum_double(a, b):
+  if a == b:
+    return ((a + b) * 2)
+  else:
+    return a + b

students/visokoo/lesson2_assignments/fizz_buzz.py

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+'''
+----------------------------------------------------
+Assignment: fizz_buzz.py
+Author: visokoo | Created: 1/20/2019
+ChangeLog: 1/20/2019, Created file
+
+Write a program that prints the numbers from 1 - 100 inclusive.
+For multiples of three, print "Fizz", multiples of five, print "Buzz."
+Numbers that are multiples of both, print "FizzBuzz."
+'''
+
+def fizz_buzz(n):
+  for num in range(n):
+    if num % 3 == 0 and num % 5 == 0:
+      msg = "FizzBuzz"
+    elif num % 3 == 0:
+      msg = "Fizz"
+    elif num % 5 == 0:
+      msg = "Buzz"
+    else:
+      msg = num
+    print(msg)
+
+fizz_buzz(101)

students/visokoo/lesson2_assignments/front_times.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 2 - front_times.py
+Author: visokoo | Created: 1/16/2019
+ChangeLog: 1/16/2019, Created file
+
+Given a string and a non-negative int n, we'll say that the front of the string is the first 3 chars, or whatever is there if the string is less than length 3. Return n copies of the front;
+
+front_times('Chocolate', 2) → 'ChoCho'
+front_times('Chocolate', 3) → 'ChoChoCho'
+front_times('Abc', 3) → 'AbcAbcAbc'
+----------------------------------------------------
+
+'''
+
+def front_times(str, n):
+  front = str[:3]
+  return front * n

students/visokoo/lesson2_assignments/grid_printer.py

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+'''
+----------------------------------------------------
+Assignment: grid_printer.py
+Author: visokoo | Created: 1/16/2019
+ChangeLog: 1/16/2019, Created file
+
+Write a function that draws a grid like the following:
++ - - - - + - - - - +
+|         |         |
+|         |         |
+|         |         |
+|         |         |
++ - - - - + - - - - +
+|         |         |
+|         |         |
+|         |         |
+|         |         |
++ - - - - + - - - - +
+----------------------------------------------------
+'''
+
+def borders(n):
+  return " + " + " - " * n
+
+def pillars(n):
+  return " | " + " " * (n * 3)
+
+def grid_printer(n):
+  print(borders(n) * 2, "+")
+  for i in range(n):
+    print(pillars(n) * 2, "|", sep=" ")
+  print(borders(n) * 2, "+")
+  for i in range(n):
+    print(pillars(n) * 2, "|", sep=" ")
+  print(borders(n) * 2, "+")
+
+def fancy_grid_printer(table_size, grid_size):
+  print(borders(grid_size) * table_size, "+")
+  for i in range(table_size):
+    for j in range(grid_size):
+      print(pillars(grid_size) * table_size, "|", sep=" ")
+    print(borders(grid_size) * table_size, "+")
+
+while True:
+  prompt = input("Standard 2x2 table or fancy table?" + "\n" + "Options: standard/fancy/exit ")
+  if prompt.lower() == "standard":
+    size = input("Pick a size for your table, larger the number, larger the table. 1 - infinity ")
+    grid_printer(int(size))
+  elif prompt.lower() == "fancy":
+    total_table_size = input("Number of rows and columns? 1 - infinity ")
+    width = input("Width of each grid? 1 - infinity ")
+    fancy_grid_printer(int(total_table_size), int(width))
+  else: break

students/visokoo/lesson2_assignments/series.py

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+'''
+----------------------------------------------------
+Assignment: series.py
+Author: visokoo | Created: 1/17/2019
+ChangeLog: 1/17/2019, Created file
+
+Write 3 functions: fibonacci, lucas, and sum_series and some tests
+for the functionality.
+
+Fibonacci:
+The Fibonacci Series is a numeric series starting with the integers 0 and 1.
+In this series, the next integer is determined by summing the previous two.
+This gives us:
+0, 1, 1, 2, 3, 5, 8, 13, ...
+
+Lucas:
+The Lucas Numbers are a related series of integers that start with the values
+2 and 1 rather than 0 and 1. The resulting series looks like this:
+2, 1, 3, 4, 7, 11, 18, 29, ...
+
+sum_series:
+Create a function with one required parameter and two optional parameters. The required
+parameter will determine which element in the series to print. The two optional parameters
+will have default values of 0 and 1 and will determine the first two values for the series
+to be produced.
+'''
+
+def fibonacci(n):
+  '''
+    fib(n) = fib(n-2) + fib(n-1)
+    Given the value n, call the sum_series function with that value
+    and return the fibonacci sequence at the nth index
+  '''
+  return sum_series(n)
+
+def lucas(n):
+  '''
+    Formula is the same as fib, but starting values are 2 and 1 respectively
+    Given the value n, call the sum_series function with that value and
+    return the lucas sequence at the nth index
+  '''
+  return sum_series(n, v1=2, v2=0)
+
+def sum_series(n, v1=0, v2=1):
+  '''
+    compute the nth value of a summation series.
+
+    :param v1=0: value of zeroth element in the series
+    :param v2=1: value of first element in the series
+
+    This function should generalize the fibonacci() and the lucas(),
+    so that this function works for any first two numbers for a sum series.
+    Once generalized that way, sum_series(n, 0, 1) should be equivalent to
+    fibonacci(n). And sum_series(n, 2, 1) should be equivalent to lucas(n).
+  '''
+  if v1 is 2:
+    if n == 0:
+      return 2
+    elif n == 1:
+      return 1
+    else:
+      return sum_series(n - 2, v1=v1, v2=v2) + sum_series(n - 1, v1=v1, v2=v2)
+  else:
+    if n > 1:
+      return sum_series(n - 2) + sum_series(n - 1)
+    return n
+
+if __name__ == "__main__":
+  # run some tests to make sure the fibonacci() is returning expected values.
+  assert fibonacci(0) == 0
+  assert fibonacci(1) == 1
+  assert fibonacci(2) == 1
+  assert fibonacci(3) == 2
+  assert fibonacci(4) == 3
+  assert fibonacci(5) == 5
+  assert fibonacci(6) == 8
+  assert fibonacci(7) == 13
+  # run some tests to make sure the lucas() is returning expected values.
+  assert lucas(0) == 2
+  assert lucas(1) == 1
+  assert lucas(4) == 7
+  # make sure sum_series outputs match fibonacci() and lucas() outputs.
+  assert sum_series(5) == fibonacci(5)
+  assert sum_series(5, 2, 1) == lucas(5)
+
+  print("Tests passed.")

students/visokoo/lesson2_assignments/string_bits.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 2 - string_bits.py
+Author: visokoo | Created: 1/16/2019
+ChangeLog: 1/16/2019, Created file
+
+Given a string, return a new string made of every other char starting with the first, so "Hello" yields "Hlo".
+
+string_bits('Hello') → 'Hlo'
+string_bits('Hi') → 'H'
+string_bits('Heeololeo') → 'Hello'
+
+----------------------------------------------------
+
+'''
+
+def string_bits(str):
+  new_str = ""
+  for position in range(0, len(str), 2):
+    new_str += str[position]
+  return new_str

students/visokoo/lesson2_assignments/string_times.py

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+'''
+----------------------------------------------------
+Assignment: Python Push Ups - Warmup Part 2 - string_times.py
+Author: visokoo | Created: 1/16/2019
+ChangeLog: 1/16/2019, Created file
+
+Given a string and a non-negative int n, return a larger string that is n copies of the original string.
+
+string_times('Hi', 2) → 'HiHi'
+string_times('Hi', 3) → 'HiHiHi'
+string_times('Hi', 1) → 'Hi'
+----------------------------------------------------
+
+'''
+
+def string_times(str, n):
+  return str * n