Create Exercise-22-Read-From-File.py

Author: swsoyee

Exercise-22-Read-From-File.py

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+'''
+Exercise 22: Read From File
+
+Given a .txt file that has a list of a bunch of names, count
+how many of each name there are in the file, and print out
+the results to the screen. I have a .txt file for you, if
+you want to use it!
+
+Extra:
+Instead of using the .txt file from above (or instead of, if
+you want the challenge), take this .txt file, and count how
+many of each “category” of each image there are. This text
+file is actually a list of files corresponding to the SUN
+database scene recognition database, and lists the file
+directory hierarchy for the images. Once you take a look at
+the first line or two of the file, it will be clear which part
+represents the scene category. To do this, you’re going to
+have to remember a bit about string parsing in Python 3.
+I talked a little bit about it in this post.
+
+'''
+
+# Solution
+def read_file(filename):
+    """
+    Read a text file and store all lines into a list.
+    
+    Arguments:
+    filename -- file name.
+    
+    Returns:
+    lines -- a list contain all lines in the file.
+    """
+    with open(filename, 'r') as open_file:
+        lines = open_file.read().splitlines()
+    return lines
+
+def count_each_element(input_list):
+    """
+    Counting each element in the list
+    
+    Arguments:
+    input_list -- a list to be counted.
+    
+    Returns:
+    Result -- a Counter result.
+    """
+    from collections import Counter
+    return Counter(input_list)
+
+def count_each_element_extra(input_list):
+    """
+    Counting each element in the list
+    
+    Arguments:
+    input_list -- a list to be counted.
+    
+    Returns:
+    Result -- a Counter result.
+    """
+    from collections import Counter
+    new_list = [i.split('/')[2] for i in input_list]
+    return Counter(new_list)
+    
+def main():
+    file_name = 'nameslist.txt'
+    content = read_file(file_name)
+    print(count_each_element(content))
+    
+    file_name_extra = 'Training_01.txt'
+    content_extra = read_file(file_name_extra)
+    print(count_each_element_extra(content_extra))
+    
+if __name__ == "__main__":
+    main()
+
+# Test part
+# Counter({'Lea': 54, 'Darth': 31, 'Luke': 15})
+# Counter({'waterfall': 150, 'balcony': 100, 'bazaar': 100, 'bow_window': 100, 'canal': 100, 'car_interior': 100, 'cathedral': 100, 'chicken_coop': 100, 'church': 100, 'desert': 100, 'diner': 100, 'dinette': 100, 'elevator': 100, 'field': 100, 'forest': 100, 'general_store': 100, 'greenhouse': 100, 'hangar': 100, 'ice_skating_rink': 100, 'kennel': 100, 'library': 100, 'market': 100, 'mosque': 100, 'parking_garage': 100, 'podium': 100, 'poolroom': 100, 'stadium': 100, 'swimming_pool': 100, 'synagogue': 100, 'temple': 100, 'tennis_court': 100, 'theater': 100, 'volleyball_court': 100, 'wine_cellar': 100, 'abbey': 50, 'airplane_cabin': 50, 'airport_terminal': 50, 'alley': 50, 'amphitheater': 50, 'amusement_arcade': 50, 'amusement_park': 50, 'anechoic_chamber': 50, 'apartment_building': 50, 'apse': 50, 'aquarium': 50, 'aqueduct': 50, 'arch': 50, 'archive': 50, 'arrival_gate': 50, 'art_gallery': 50, 'art_school': 50, 'art_studio': 50, 'assembly_line': 50, 'athletic_field': 50, 'atrium': 50, 'attic': 50, 'auditorium': 50, 'auto_factory': 50, 'badlands': 50, 'badminton_court': 50, 'baggage_claim': 50, 'bakery': 50, 'ball_pit': 50, 'ballroom': 50, 'bamboo_forest': 50, 'banquet_hall': 50, 'bar': 50, 'barn': 50, 'barndoor': 50, 'baseball_field': 50, 'basement': 50, 'basilica': 50, 'basketball_court': 50, 'bathroom': 50, 'batters_box': 50, 'bayou': 50, 'beach': 50, 'beauty_salon': 50, 'bedroom': 50, 'berth': 50, 'biology_laboratory': 50, 'bistro': 50, 'boardwalk': 50, 'boat_deck': 50, 'boathouse': 50, 'bookstore': 50, 'booth': 50, 'botanical_garden': 50, 'bowling_alley': 50, 'boxing_ring': 50, 'brewery': 50, 'bridge': 50, 'building_facade': 50, 'bullring': 50, 'burial_chamber': 50, 'bus_interior': 50, 'butchers_shop': 50, 'butte': 50, 'cabin': 50, 'cafeteria': 50, 'campsite': 50, 'campus': 50, 'candy_store': 50, 'canyon': 50, 'carrousel': 50, 'casino': 50, 'castle': 50, 'catacomb': 50, 'cavern': 50, 'cemetery': 50, 'chalet': 50, 'cheese_factory': 50, 'chemistry_lab': 50, 'childs_room': 50, 'classroom': 50, 'clean_room': 50, 'cliff': 50, 'cloister': 50, 'closet': 50, 'clothing_store': 50, 'coast': 50, 'cockpit': 50, 'coffee_shop': 50, 'computer_room': 50, 'conference_center': 50, 'conference_room': 50, 'construction_site': 50, 'control_room': 50, 'control_tower': 50, 'corn_field': 50, 'corral': 50, 'corridor': 50, 'cottage_garden': 50, 'courthouse': 50, 'courtroom': 50, 'courtyard': 50, 'covered_bridge': 50, 'creek': 50, 'crevasse': 50, 'crosswalk': 50, 'cubicle': 50, 'dam': 50, 'delicatessen': 50, 'dentists_office': 50, 'dining_car': 50, 'dining_room': 50, 'discotheque': 50, 'dock': 50, 'doorway': 50, 'dorm_room': 50, 'driveway': 50, 'driving_range': 50, 'drugstore': 50, 'electrical_substation': 50, 'elevator_shaft': 50, 'engine_room': 50, 'escalator': 50, 'excavation': 50, 'factory': 50, 'fairway': 50, 'fastfood_restaurant': 50, 'fire_escape': 50, 'fire_station': 50, 'firing_range': 50, 'fishpond': 50, 'florist_shop': 50, 'food_court': 50, 'forest_path': 50, 'forest_road': 50, 'formal_garden': 50, 'fountain': 50, 'galley': 50, 'game_room': 50, 'garage': 50, 'garbage_dump': 50, 'gas_station': 50, 'gazebo': 50, 'gift_shop': 50, 'golf_course': 50, 'gymnasium': 50, 'harbor': 50, 'hayfield': 50, 'heliport': 50, 'herb_garden': 50, 'highway': 50, 'hill': 50, 'home_office': 50, 'hospital': 50, 'hospital_room': 50, 'hot_spring': 50, 'hot_tub': 50, 'hotel': 50, 'hotel_room': 50, 'house': 50, 'hunting_lodge': 50, 'ice_cream_parlor': 50, 'ice_floe': 50, 'ice_shelf': 50, 'iceberg': 50, 'igloo': 50, 'industrial_area': 50, 'inn': 50, 'islet': 50, 'jacuzzi': 50, 'jail': 50, 'jail_cell': 50, 'jewelry_shop': 50, 'kasbah': 50, 'kindergarden_classroom': 50, 'kitchen': 50, 'kitchenette': 50, 'labyrinth': 50, 'lake': 50, 'landfill': 50, 'landing_deck': 50, 'laundromat': 50, 'lecture_room': 50, 'lido_deck': 50, 'lift_bridge': 50, 'lighthouse': 50, 'limousine_interior': 50, 'living_room': 50, 'lobby': 50, 'lock_chamber': 50, 'locker_room': 50, 'mansion': 50, 'manufactured_home': 50, 'marsh': 50, 'martial_arts_gym': 50, 'mausoleum': 50, 'medina': 50, 'moat': 50, 'monastery': 50, 'motel': 50, 'mountain': 50, 'mountain_snowy': 50, 'movie_theater': 50, 'museum': 50, 'music_store': 50, 'music_studio': 50, 'nuclear_power_plant': 50, 'nursery': 50, 'oast_house': 50, 'observatory': 50, 'ocean': 50, 'office': 50, 'office_building': 50, 'oil_refinery': 50, 'oilrig': 50, 'operating_room': 50, 'orchard': 50, 'outhouse': 50, 'pagoda': 50, 'palace': 50, 'pantry': 50, 'park': 50, 'parking_lot': 50, 'parlor': 50, 'pasture': 50, 'patio': 50, 'pavilion': 50, 'pharmacy': 50, 'phone_booth': 50, 'physics_laboratory': 50, 'picnic_area': 50, 'pilothouse': 50, 'planetarium': 50, 'playground': 50, 'playroom': 50, 'plaza': 50, 'pond': 50, 'power_plant': 50, 'promenade_deck': 50, 'pub': 50, 'pulpit': 50, 'putting_green': 50, 'racecourse': 50, 'raceway': 50, 'raft': 50, 'railroad_track': 50, 'rainforest': 50, 'reception': 50, 'recreation_room': 50, 'residential_neighborhood': 50, 'restaurant': 50, 'restaurant_kitchen': 50, 'restaurant_patio': 50, 'rice_paddy': 50, 'riding_arena': 50, 'river': 50, 'rock_arch': 50, 'rope_bridge': 50, 'ruin': 50, 'runway': 50, 'sandbar': 50, 'sandbox': 50, 'sauna': 50, 'schoolhouse': 50, 'sea_cliff': 50, 'server_room': 50, 'shed': 50, 'shoe_shop': 50, 'shopfront': 50, 'shopping_mall': 50, 'shower': 50, 'skatepark': 50, 'ski_lodge': 50, 'ski_resort': 50, 'ski_slope': 50, 'sky': 50, 'skyscraper': 50, 'slum': 50, 'snowfield': 50, 'squash_court': 50, 'stable': 50, 'stage': 50, 'staircase': 50, 'street': 50, 'subway_interior': 50, 'subway_station': 50, 'supermarket': 50, 'sushi_bar': 50, 'swamp': 50, 'television_studio': 50, 'tent': 50, 'thriftshop': 50, 'throne_room': 50, 'ticket_booth': 50, 'toll_plaza': 50, 'topiary_garden': 50, 'tower': 50, 'toyshop': 50, 'track': 50, 'train_railway': 50, 'train_station': 50, 'tree_farm': 50, 'tree_house': 50, 'trench': 50, 'underwater': 50, 'utility_room': 50, 'valley': 50, 'van_interior': 50, 'vegetable_garden': 50, 'veranda': 50, 'veterinarians_office': 50, 'viaduct': 50, 'videostore': 50, 'village': 50, 'vineyard': 50, 'volcano': 50, 'waiting_room': 50, 'warehouse': 50, 'water_tower': 50, 'watering_hole': 50, 'wave': 50, 'wet_bar': 50, 'wheat_field': 50, 'wind_farm': 50, 'windmill': 50, 'wrestling_ring': 50, 'yard': 50, 'youth_hostel': 50})