diff --git a/Python_Exercises.py b/Python_Exercises.py index d7e6135..a430cad 100644 --- a/Python_Exercises.py +++ b/Python_Exercises.py @@ -4,118 +4,139 @@ # Answer the questions or complete the tasks outlined in bold below. -def power(a,b): - +def power(a, b): # ** What is 7 to the power of 4?** - - return None + return a ** b + + +out = power(7, 4) +print(out) def split_str(s): - # ** Split this string:** -# -# s = "Hi there Sam!" -# -# **into a list. ** + # + # s = "Hi there Sam!" + # + # **into a list. ** + + return s.split() + + +output = split_str("Hi there Sam!") +print(output) + - return None +def format(planet, diameter): + # ** Given the variables:** + # + # planet = "Earth" + # diameter = 12742 + # + # ** Use .format() to print the following string: ** + # + # The diameter of Earth is 12742 kilometers. + return "The diameter of {} is {} kilometers." .format(planet, diameter) -def format(planet,diameter): - -# ** Given the variables:** -# -# planet = "Earth" -# diameter = 12742 -# -# ** Use .format() to print the following string: ** -# -# The diameter of Earth is 12742 kilometers. - return None +planet = "Earth" +diameter = 12742 def indexing(lst): - -# ** Given this nested list, use indexing to grab the word "hello" ** + # ** Given this nested list, use indexing to grab the word "hello" ** -#lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7] + # lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7] + return lst[3][1][2][0] + + +lst = [1, 2, [3, 4], [5, [100, 200, ['hello']], 23, 11], 1, 7] - return None def dictionary(d): - -# ** Given this nested dictionary grab the word "hello". Be prepared, this will be annoying/tricky ** + # ** Given this nested dictionary grab the word "hello". Be prepared, this will be annoying/tricky ** -# d = {'k1':[1,2,3,{'tricky':['oh','man','inception',{'target':[1,2,3,'hello']}]}]} + # d = {'k1':[1,2,3,{'tricky':['oh','man','inception',{'target':[1,2,3,'hello']}]}]} + return d['k1'][3]['tricky'][3]['target'][3] - return None +d = {'k1': [1, 2, 3, {'tricky': ['oh', 'man', 'inception', {'target': [1, 2, 3, 'hello']}]}]} +d['k1'][3]['tricky'][3]['target'][3] -def subjective(): - -# ** What is the main difference between a tuple and a list? ** -# Tuple is _______ - return None +def subjective(): + # ** What is the main difference between a tuple and a list? ** + # Tuple is _______ + return "immutable" def domainGet(email): - # ** Create a function that grabs the email website domain from a string in the form: ** -# -# user@domain.com -# -# **So for example, passing "user@domain.com" would return: domain.com** + # + # user@domain.com + # + # **So for example, passing "user@domain.com" would return: domain.com** - return None + return email.split('@')[1] def findDog(st): - -# ** Create a basic function that returns True if the word 'dog' is contained in the input string. Don't worry about edge cases like a punctuation being attached to the word dog, but do account for capitalization. ** + # ** Create a basic function that returns True if the word 'dog' is contained in the input string. Don't worry about edge cases like a punctuation being attached to the word dog, but do account for capitalization. ** - return None + return 'dog' in st.lower().split() def countDog(st): - -# ** Create a function that counts the number of times the word "dog" occurs in a string. Again ignore edge cases. ** - - return None + # ** Create a function that counts the number of times the word "dog" occurs in a string. Again ignore edge cases. ** + count = 0 + for word in st.lower().split(): + if word == 'dog': + count += 1 + return count def lambdafunc(seq): - # ** Use lambda expressions and the filter() function to filter out words from a list that don't start with the letter 's'. For example:** -# -# seq = ['soup','dog','salad','cat','great'] -# -# **should be filtered down to:** -# -# ['soup','salad'] + # + # seq = ['soup','dog','salad','cat','great'] + # + # **should be filtered down to:** + # + # ['soup','salad'] + + return a + - return None +seq = ['soup', 'dog', 'salad', 'cat', 'great'] +a= list(filter(lambda word: word[0] == 's', seq)) def caught_speeding(speed, is_birthday): - - -# **You are driving a little too fast, and a police officer stops you. Write a function -# to return one of 3 possible results: "No ticket", "Small ticket", or "Big Ticket". -# If your speed is 60 or less, the result is "No Ticket". If speed is between 61 -# and 80 inclusive, the result is "Small Ticket". If speed is 81 or more, the result is "Big Ticket". Unless it is your birthday (encoded as a boolean value in the parameters of the function) -- on your birthday, your speed can be 5 higher in all -# cases. ** + # **You are driving a little too fast, and a police officer stops you. Write a function + # to return one of 3 possible results: "No ticket", "Small ticket", or "Big Ticket". + # If your speed is 60 or less, the result is "No Ticket". If speed is between 61 + # and 80 inclusive, the result is "Small Ticket". If speed is 81 or more, the result is "Big Ticket". Unless it is your birthday (encoded as a boolean value in the parameters of the function) -- on your birthday, your speed can be 5 higher in all + # cases. ** - return None + if is_birthday: + speeding = speed - 5 + else: + speeding = speed + + if speeding > 80: + return 'Big Ticket' + elif speeding > 60: + return 'Small Ticket' + else: + return 'No Ticket' ## Numpy Exercises @@ -124,114 +145,118 @@ def caught_speeding(speed, is_birthday): def create_arr_of_fives(): - - #### Create an array of 10 fives - #### Convert your output into list - #### e.g return list(arr) + #### Create an array of 10 fives + #### Convert your output into list + #### e.g return list(arr) + + a = np.random.randint(5, 6, 10) + a - return None + return a.tolist() def even_num(): - - ### Create an array of all the even integers from 10 to 50 - ### Convert your output into list - ### e.g return list(arr) + ### Create an array of all the even integers from 10 to 50 + ### Convert your output into list + ### e.g return list(arr) + a = np.arange(10, 51, 2) + a - return None + return a.tolist() def create_matrix(): - - ### Create a 3x3 matrix with values ranging from 0 to 8 - ### Convert your output into list - ### e.g return (arr).tolist() + ### Create a 3x3 matrix with values ranging from 0 to 8 + ### Convert your output into list + ### e.g return (arr).tolist() + a = np.arange(0,9).reshape(3,3) + a - return None + return a.tolist() def linear_space(): - - ### Create an array of 20 linearly spaced points between 0 and 1 - ### Convert your output into list - ### e.g return list(arr) + ### Create an array of 20 linearly spaced points between 0 and 1 + ### Convert your output into list + ### e.g return list(arr) + arr = np.linspace(0, 1, 20) + arr - return None + return arr.tolist() def decimal_mat(): - - ### Create an array of size 10*10 consisting of numbers from 0.01 to 1 - ### Convert your output into list - ### e.g return (arr).tolist() + ### Create an array of size 10*10 consisting of numbers from 0.01 to 1 + ### Convert your output into list + ### e.g return (arr).tolist() + arr = np.around(np.linspace(0.01, 1., 100), decimals=2).reshape(10, 10).tolist() - return None + return arr def slices_1(): - - # This is a given array - arr = np.arange(1,26).reshape(5,5) - # array([[ 1, 2, 3, 4, 5], - # [ 6, 7, 8, 9, 10], - # [11, 12, 13, 14, 15], - # [16, 17, 18, 19, 20], - # [21, 22, 23, 24, 25]]) + # This is a given array + arr = np.arange(1, 26).reshape(5, 5) + # array([[ 1, 2, 3, 4, 5], + # [ 6, 7, 8, 9, 10], + # [11, 12, 13, 14, 15], + # [16, 17, 18, 19, 20], + # [21, 22, 23, 24, 25]]) - # Write a code to slice this given array - ### Convert your output into list - ### e.g return (arr).tolist() - # array([[12, 13, 14, 15], - # [17, 18, 19, 20], - # [22, 23, 24, 25]]) + # Write a code to slice this given array + ### Convert your output into list + ### e.g return (arr).tolist() + # array([[12, 13, 14, 15], + # [17, 18, 19, 20], + # [22, 23, 24, 25]]) + a = arr[2:, 1:] - return None + return a.tolist() def slices_2(): - - # This is a given array - arr = np.arange(1,26).reshape(5,5) - # array([[ 1, 2, 3, 4, 5], - # [ 6, 7, 8, 9, 10], - # [11, 12, 13, 14, 15], - # [16, 17, 18, 19, 20], - # [21, 22, 23, 24, 25]]) + # This is a given array + arr = np.arange(1, 26).reshape(5, 5) + # array([[ 1, 2, 3, 4, 5], + # [ 6, 7, 8, 9, 10], + # [11, 12, 13, 14, 15], + # [16, 17, 18, 19, 20], + # [21, 22, 23, 24, 25]]) - # Write a code to slice this given array - ### Convert your output into list - ### e.g return (arr).tolist() - # array([[ 2], - # [ 7], - # [12]]) - - return None + # Write a code to slice this given array + ### Convert your output into list + ### e.g return (arr).tolist() + # array([[ 2], + # [ 7], + # [12]]) + a = arr[0:3, 1:2] + return a.tolist() def slices_3(): - - # This is a given array - arr = np.arange(1,26).reshape(5,5) - # array([[ 1, 2, 3, 4, 5], - # [ 6, 7, 8, 9, 10], - # [11, 12, 13, 14, 15], - # [16, 17, 18, 19, 20], - # [21, 22, 23, 24, 25]]) - - # Write a code to slice this given array - ### Convert your output into list - ### e.g return (arr).tolist() - # array([[16, 17, 18, 19, 20], - # [21, 22, 23, 24, 25]]) - - return None - - -# Great job! + # This is a given array + arr = np.arange(1, 26).reshape(5, 5) + # array([[ 1, 2, 3, 4, 5], + # [ 6, 7, 8, 9, 10], + # [11, 12, 13, 14, 15], + # [16, 17, 18, 19, 20], + # [21, 22, 23, 24, 25]]) + + # Write a code to slice this given array + ### Convert your output into list + ### e.g return (arr).tolist() + # array([[16, 17, 18, 19, 20], + # [21, 22, 23, 24, 25]]) + + a = arr[3:, 0:] + + return a.tolist() + + # Great job!