def test_ask_yes_no(self):
# Test type.
res = core.ask_yes_no("Question (yes/no)? Enter yes.")
self.assertIsInstance(res,bool)
self.assertTrue(res)
res = core.ask_yes_no("Question (yes/no)? Enter no.")
self.assertIsInstance(res,bool)
self.assertFalse(res)
def test_ask_yes_no(self):
# Test type.
res = core.ask_yes_no("Question (yes/no)? Enter yes.")
self.assertIsInstance(res, bool)
self.assertTrue(res)
res = core.ask_yes_no("Question (yes/no)? Enter no.")
self.assertIsInstance(res, bool)
self.assertFalse(res)
def test(self):
# Task: Start with a seed video.
#
# Implementation options:
#
# 1. Predefined set of possible seed videos.
# 2. Result of a search using a predefined set of seed keywords.
#
# To get the player off to a good start and make sure it is a music video
# that's played will go for (1).
# Task: Define a set of seed videos.
#
# How should a video be identified?
#
# Important to consider what a user of YouTube is exposed to.
# - YouTube urls eg. http://www.youtube.com/watch?v=9bZkp7q19f0
# - Video titles eg. PSY - GANGNAM STYLE
# - Video thumbnails
# - Video hashs eg. 9bZkp7q19f0
#
# YouTube urls have desirable properties that they are unique and it's
# obvious what they correspond to. Therefore YouTube urls will be used to
# identify videos.
#
# How should the collection of videos be represented?
#
# Collection will need order, for example as may want to sort on popularity
# or date added. This motivates use of a list.
#
# Idea of a list may not be suffeciently flexible. This motivates using
# the more general notion of a collection. Will review.
# Update: Using from_web_urls for clarity in API.
seed_videos = youtube.VideoCollection.from_web_urls([
# Generated using YouTube Music Top Tracks.
# Pop
"http://www.youtube.com/watch?v=9bZkp7q19f0", # PSY - GANGNAM STYLE
"http://www.youtube.com/watch?v=lJqbaGloVxg", # James Arthur - Impossible - Official Single
"http://www.youtube.com/watch?v=kYtGl1dX5qI", # will.i.am - Scream & Shout ft. Britney Spears
"http://www.youtube.com/watch?v=bqIxCtEveG8", # Labrinth feat. Emeli Sande - Beneath Your Beautiful
# Country
"http://www.youtube.com/watch?v=KHF9itPLUo4", # Johnny Cash - I Walk the Line
"http://www.youtube.com/watch?v=WA4iX5D9Z64", # Taylor Swift - We Are Never Ever Getting Back Together
"http://www.youtube.com/watch?v=vNoKguSdy4Y", # Taylor Swift - I Knew You Were Trouble
# Rap and Hip Hop
"http://www.youtube.com/watch?v=j5-yKhDd64s", # Eminem - Not Afraid
# Rock
"http://www.youtube.com/watch?v=DF0zefuJ4Ys", # The Fray - How to save a life (lyrics)
"http://www.youtube.com/watch?v=hLQl3WQQoQ0", # Adele - Someone Like You
"http://www.youtube.com/watch?v=pY9b6jgbNyc", # Coldplay - Fix You
# Electronic
"http://www.youtube.com/watch?v=uweWiCLT8Eg", # David Guetta - She Wolf (Lyrics Video) ft. Sia
"http://www.youtube.com/watch?v=1y6smkh6c-0", # Don't You Worry Child (Live)
"http://www.youtube.com/watch?v=qimiWfZAtXw", # Wiley | Heatwave feat. Ms.D (Official Video)
"http://www.youtube.com/watch?v=YJVmu6yttiw", # SKRILLEX - Bangarang feat. Sirah [Official Music Video]
# Folk
"http://www.youtube.com/watch?v=FOjdXSrtUxA", # Ed Sheeran - Give Me Love [Official Video]
"http://www.youtube.com/watch?v=4A3poKE6qnM", # Lenka - Everything At Once
"http://www.youtube.com/watch?v=p1iDBtcEm0w", # Stubborn Love by The Lumineers (Lyric Video)
# Adding some more genres to make it more interesting!
# Metal
"http://www.youtube.com/watch?v=v_09wFxoaeQ", # Slipknot - Before I Forget
# Classical
"http://www.youtube.com/watch?v=ipzR9bhei_o" # Bach, Toccata and Fugue in D minor, organ
])
# Task: Randomly select a seed video from the collection of seed videos.
curr_video = seed_videos.random()
# Task: Main loop of the program. Play a section of the video. Ask for user
# feedback and either play a section of a related video or use a new seed.
for i in range(0,4):
# Task: Show video title and description.
#
# Need an API for displaying text. Later will need to accept
# inputs as well. Add these features as if they were language features
# like print and raw_input.
display(text=curr_video.title(),duration=5)
display(text=curr_video.description(),duration=5)
# Task: Play section of currently selected video.
#
# Want to keep user engaged and as music videos often start slowly
# will play clip at random offset into the video.
#
# Should random.uniform be used at expense of understanding what
# the line does or should a more descriptive method like
# generateRandomNumberWithinInterval which would teach users less
# about specific Python language features?
clip_duration = 10
video_duration = curr_video.duration()
clip_offset = random.uniform(0, video_duration-clip_duration)
# How should the video playing API be referenced?
#
# May want to consider treating the Video playing API likes the CPU
# YouTube API like main memory. This analogy be be confusing however.
#
# More educational content is using more conventional module names.
#
# To allow the API to use different video playing applications
# in the background don't want to reference particular applications.
# May want to consider how could intergrate OpenGL capabilities however
# will defer this as unlikely to be relevant.
#
# Using named arguments makes it clearer what's going on.
# Less **hidden dependancies**.
videoplayer.play(video=curr_video,offset=clip_offset,duration=clip_duration)
# Task: Get user feedback.
#
# Implement as basic language feature, like print and raw_input.
user_liked_song = ask_yes_no("Did you like that song?")
# Task: Choose a related song or a new seed depending on whether
# user liked the previous one.
#
# Being explicit in comparing to True makes it clearer to the user
# what the language is doing. This remove hidden dependance and
# increases role expressiveness.
if user_liked_song == True:
# Task: Choose a related video.
#
# There will be very many related videos.
# How should the related video be selected?
# Should selection process be exposed or left to the API to
# implement.
curr_video = curr_video.related().random()
else:
curr_video = seed_videos.random()
def test(self):
# Task: Start with a seed video.
#
# Implementation options:
#
# 1. Predefined set of possible seed videos.
# 2. Result of a search using a predefined set of seed keywords.
#
# To get the player off to a good start and make sure it is a music video
# that's played will go for (1).
# Task: Define a set of seed videos.
#
# How should a video be identified?
#
# Important to consider what a user of YouTube is exposed to.
# - YouTube urls eg. http://www.youtube.com/watch?v=9bZkp7q19f0
# - Video titles eg. PSY - GANGNAM STYLE
# - Video thumbnails
# - Video hashs eg. 9bZkp7q19f0
#
# YouTube urls have desirable properties that they are unique and it's
# obvious what they correspond to. Therefore YouTube urls will be used to
# identify videos.
#
# How should the collection of videos be represented?
#
# Collection will need order, for example as may want to sort on popularity
# or date added. This motivates use of a list.
#
# Idea of a list may not be suffeciently flexible. This motivates using
# the more general notion of a collection. Will review.
# Update: Using from_web_urls for clarity in API.
seed_videos = youtube.VideoCollection.from_web_urls([
# Generated using YouTube Music Top Tracks.
# Pop
"http://www.youtube.com/watch?v=9bZkp7q19f0", # PSY - GANGNAM STYLE
"http://www.youtube.com/watch?v=lJqbaGloVxg", # James Arthur - Impossible - Official Single
"http://www.youtube.com/watch?v=kYtGl1dX5qI", # will.i.am - Scream & Shout ft. Britney Spears
"http://www.youtube.com/watch?v=bqIxCtEveG8", # Labrinth feat. Emeli Sande - Beneath Your Beautiful
# Country
"http://www.youtube.com/watch?v=KHF9itPLUo4", # Johnny Cash - I Walk the Line
"http://www.youtube.com/watch?v=WA4iX5D9Z64", # Taylor Swift - We Are Never Ever Getting Back Together
"http://www.youtube.com/watch?v=vNoKguSdy4Y", # Taylor Swift - I Knew You Were Trouble
# Rap and Hip Hop
"http://www.youtube.com/watch?v=j5-yKhDd64s", # Eminem - Not Afraid
# Rock
"http://www.youtube.com/watch?v=DF0zefuJ4Ys", # The Fray - How to save a life (lyrics)
"http://www.youtube.com/watch?v=hLQl3WQQoQ0", # Adele - Someone Like You
"http://www.youtube.com/watch?v=pY9b6jgbNyc", # Coldplay - Fix You
# Electronic
"http://www.youtube.com/watch?v=uweWiCLT8Eg", # David Guetta - She Wolf (Lyrics Video) ft. Sia
"http://www.youtube.com/watch?v=1y6smkh6c-0", # Don't You Worry Child (Live)
"http://www.youtube.com/watch?v=qimiWfZAtXw", # Wiley | Heatwave feat. Ms.D (Official Video)
"http://www.youtube.com/watch?v=YJVmu6yttiw", # SKRILLEX - Bangarang feat. Sirah [Official Music Video]
# Folk
"http://www.youtube.com/watch?v=FOjdXSrtUxA", # Ed Sheeran - Give Me Love [Official Video]
"http://www.youtube.com/watch?v=4A3poKE6qnM", # Lenka - Everything At Once
"http://www.youtube.com/watch?v=p1iDBtcEm0w", # Stubborn Love by The Lumineers (Lyric Video)
# Adding some more genres to make it more interesting!
# Metal
"http://www.youtube.com/watch?v=v_09wFxoaeQ", # Slipknot - Before I Forget
# Classical
"http://www.youtube.com/watch?v=ipzR9bhei_o" # Bach, Toccata and Fugue in D minor, organ
])
# Task: Randomly select a seed video from the collection of seed videos.
curr_video = seed_videos.random()
# Task: Main loop of the program. Play a section of the video. Ask for user
# feedback and either play a section of a related video or use a new seed.
for i in range(0, 4):
# Task: Show video title and description.
#
# Need an API for displaying text. Later will need to accept
# inputs as well. Add these features as if they were language features
# like print and raw_input.
display(text=curr_video.title(), duration=5)
display(text=curr_video.description(), duration=5)
# Task: Play section of currently selected video.
#
# Want to keep user engaged and as music videos often start slowly
# will play clip at random offset into the video.
#
# Should random.uniform be used at expense of understanding what
# the line does or should a more descriptive method like
# generateRandomNumberWithinInterval which would teach users less
# about specific Python language features?
clip_duration = 10
video_duration = curr_video.duration()
clip_offset = random.uniform(0, video_duration - clip_duration)
# How should the video playing API be referenced?
#
# May want to consider treating the Video playing API likes the CPU
# YouTube API like main memory. This analogy be be confusing however.
#
# More educational content is using more conventional module names.
#
# To allow the API to use different video playing applications
# in the background don't want to reference particular applications.
# May want to consider how could intergrate OpenGL capabilities however
# will defer this as unlikely to be relevant.
#
# Using named arguments makes it clearer what's going on.
# Less **hidden dependancies**.
videoplayer.play(video=curr_video,
offset=clip_offset,
duration=clip_duration)
# Task: Get user feedback.
#
# Implement as basic language feature, like print and raw_input.
user_liked_song = ask_yes_no("Did you like that song?")
# Task: Choose a related song or a new seed depending on whether
# user liked the previous one.
#
# Being explicit in comparing to True makes it clearer to the user
# what the language is doing. This remove hidden dependance and
# increases role expressiveness.
if user_liked_song == True:
# Task: Choose a related video.
#
# There will be very many related videos.
# How should the related video be selected?
# Should selection process be exposed or left to the API to
# implement.
curr_video = curr_video.related().random()
else:
curr_video = seed_videos.random()