1st Cortification Python Fundamentals

This certification shows my mastery of accessing data in files using lists, functions, and variables given a dataset from Kaggle.

Author: James1515

PythonFundamentals/Project#1/Guided Project_ Profitable App Profiles for the App Store and Google Play Markets/AppleStore.csv

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+## 1. If Statements ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+free_apps_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    # Complete the code from here
+    price = float(row[4])
+    
+    if price == 0.0:
+        free_apps_ratings.append(rating)
+        
+avg_rating_free = sum(free_apps_ratings) / len(free_apps_ratings)
+
+## 2. Booleans ##
+
+a_price = 0
+if a_price == 0:
+    print('This is free')
+
+if a_price == 1:
+    print('This is not free')
+
+## 3. The Average Rating of Non-free Apps ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+non_free_apps_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    price = float(row[4])   
+    if price != 0.0:
+        non_free_apps_ratings.append(rating)
+    
+avg_rating_non_free = sum(non_free_apps_ratings) / len(non_free_apps_ratings)
+
+## 4. The Average Rating of Gaming Apps ##
+
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+non_games_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    genre = row[11]
+    
+    if genre != 'Games':
+        non_games_ratings.append(rating)
+    
+avg_rating_non_games = sum(non_games_ratings) / len(non_games_ratings)
+
+## 5. Multiple Conditions ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+free_games_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    price = float(row[4])
+    genre = row[11]
+    # Complete code from here
+    
+    if price == 0.0 and genre == 'Games':
+        free_games_ratings.append(rating)
+        
+avg_rating_free_games = sum(free_games_ratings) / len(free_games_ratings)
+
+## 6. The or Operator ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+games_social_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    genre = row[11]
+    # Complete code from here
+# SOLUTION CODE
+games_social_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    genre = row[11]  
+    if genre == 'Social Networking' or genre == 'Games':
+        games_social_ratings.append(rating)
+        
+avg_games_social = sum(games_social_ratings) / len(games_social_ratings)
+    
+    
+
+## 7. Combining Logical Operators ##
+
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+free_games_social_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    genre = row[11]
+    price = float(row[4])
+    
+    if (genre == 'Social Networking' or genre == 'Games') and price == 0:
+        free_games_social_ratings.append(rating)
+        
+avg_free = sum(free_games_social_ratings) / len(free_games_social_ratings)
+
+# Non-free apps (average)
+
+non_free_games_social_ratings = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    genre = row[11]
+    price = float(row[4])
+    
+    if (genre == 'Social Networking' or genre == 'Games') and price != 0:
+        non_free_games_social_ratings.append(rating)
+
+avg_non_free = sum(non_free_games_social_ratings) / len(non_free_games_social_ratings)
+
+
+
+
+## 8. Comparison Operators ##
+
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+n_apps_more_9 = 0
+n_apps_less_9 = 0
+N_apps = []
+for row in apps_data[1:]:
+    rating = float(row[7])
+    price = float(row[4])
+    if price > 9.0:
+        N_apps.append(rating)
+        n_apps_more_9 = n_apps_more_9 + 1
+        
+    if price <= 9.0:
+        n_apps_less_9 = n_apps_less_9 + 1
+        
+        
+        
+avg_rating = sum(N_apps) / len(N_apps)
+
+
+
+## 9. The else Clause ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+for app in apps_data[1:]:
+    price = float(app[4])
+    # Complete code from here
+    if price == 0.0:
+        app.append('free')
+    else:
+        app.append('non-free')
+        
+apps_data[0].append('free_or_not')
+
+
+print(apps_data[:6])
+
+
+## 10. The elif Clause ##
+
+# INITIAL CODE
+opened_file = open('AppleStore.csv')
+from csv import reader
+read_file = reader(opened_file)
+apps_data = list(read_file)
+
+for app in apps_data[1:]:
+    price = float(app[4])
+    # Complete code from here
+    
+    if price == 0:
+        app.append('free')
+    elif price > 0 and price < 20:
+        app.append('affordable')
+    elif price >= 20 and price < 50:
+        app.append('expensive')
+    elif price >= 50:
+        app.append('very expensive')
+
+apps_data[0].append('price_label')
+
+