Update Python_Exercises.py

Python_Exercises.py

@@ -8,7 +8,7 @@ def power(a,b):
 
     # ** What is 7 to the power of 4?**
 
-    return None
+    return a**b
 
 
 
@@ -20,7 +20,7 @@ def split_str(s):
 #     
 # **into a list. **
 
-    return None
+    return s.split(' ')
 
 
 def format(planet,diameter):
@@ -34,17 +34,23 @@ def format(planet,diameter):
 # 
 #     The diameter of Earth is 12742 kilometers.
 
-    return None
+   return "The diameter of {} is {} kilometers.".format(planet,diameter)
+
+
 
 
 
 def indexing(lst):
-
+     return lst[3][1][2][0]
+
+
 # ** 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]
+
 
-    return None
 
 
 def dictionary(d):
@@ -54,15 +60,15 @@ def dictionary(d):
 # d = {'k1':[1,2,3,{'tricky':['oh','man','inception',{'target':[1,2,3,'hello']}]}]}
 
 
-    return None
+        return d['k1'][3]['tricky'][3]['target'][3]
 
 
 def subjective():
 
 # ** What is the main difference between a tuple and a list? **
 # Tuple is _______
 
-    return None
+        return "immutable"
 
 
 
@@ -74,15 +80,16 @@ def domainGet(email):
 #     user@domain.com
 #     
 # **So for example, passing "user@domain.com" would return: domain.com**
+    l=email.split('@')
 
-    return None
+       return l[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. **
-
-    return None
+    r = st.lower()
+    return "dog" in r
 
 
 def countDog(st):
@@ -103,7 +110,7 @@ def lambdafunc(seq):
 # 
 #     ['soup','salad']
 
-    return None
+      return list(filter(lambda var:var[0]=='s'or var[0]=='S',seq))
 
 
 def caught_speeding(speed, is_birthday):
@@ -114,8 +121,22 @@ def caught_speeding(speed, is_birthday):
 #   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. **
+     if is_birthday==True:
+      if speed<=65:
+        return "No Ticket"
+      elif speed >=66 and speed<=85:
+        return "Small Ticket"
+      else:
+        return "Big Ticket"
+    else:
+      if speed<=60:
+        return "No Ticket"
+      elif speed >=61 and speed<=80:
+        return "Small Ticket"
+      else:
+        return "Big Ticket"
 
-    return None
+
 
 
 ## Numpy Exercises
@@ -129,7 +150,7 @@ def create_arr_of_fives():
   #### Convert your output into list 
   #### e.g return list(arr) 
 
-  return None
+  return (5*np.ones(10)).tolist()
 
 
 
@@ -139,7 +160,7 @@ def even_num():
   ### Convert your output into list 
   ### e.g return list(arr) 
 
-  return None
+  return np.linspace(10,50,21).tolist()
 
 
 
@@ -149,8 +170,7 @@ def create_matrix():
   ### Convert your output into list 
   ### e.g return (arr).tolist()
 
-  return None
-
+  return np.arange(9).reshape(3,3).tolist()
 
 
 def linear_space():
@@ -159,7 +179,7 @@ def linear_space():
   ### Convert your output into list 
   ### e.g return list(arr) 
 
-  return None
+    return np.linspace(0,1,20).tolist()
 
 
 
@@ -169,7 +189,9 @@ def decimal_mat():
   ### Convert your output into list 
   ### e.g return (arr).tolist()
 
-  return None
+    return (np.linspace(1,100,100).reshape(10,10)/100).tolist()
+
+
 
 
 
@@ -190,7 +212,7 @@ def slices_1():
   #      [17, 18, 19, 20],
   #      [22, 23, 24, 25]])
 
-  return None
+  return (arr[-3:,1:]).tolist()
 
 
 
@@ -211,7 +233,7 @@ def slices_2():
   #      [ 7],
   #      [12]])
 
-  return None 
+    return (arr[:3,1:2]).tolist()
 
 
 
@@ -231,7 +253,8 @@ def slices_3():
   # array([[16, 17, 18, 19, 20],
   #      [21, 22, 23, 24, 25]])
 
-  return None 
+  return arr[-2:].tolist()
+
 
 
 # Great job!