Example code for Episode 15

episode15/codingYouTube101.py

@@ -0,0 +1,104 @@
+#!/usr/bin/env python
+
+# Coding YouTube 101
+# 
+# Written by Erik C. Thauvin (erik@thauvin.net)
+# http://erik.thauvin.net/
+# http://github.com/ethauvin/coding101/
+# May 1, 2014
+
+# To warp long lines
+import textwrap
+# For making http requests
+import urllib2
+# For decoding YouTube's API responses
+import json
+
+# Your YouTube API key from https://developers.google.com/youtube/registering_an_application
+youTubeApiKey = ''
+
+# Print opening title
+print '============================= CODING YOUTUBE 101 ============================='
+# Print an empty line
+print
+
+# Ask for the API key if none is specified above
+while not youTubeApiKey.isalnum():
+    youTubeApiKey = raw_input('Enter your YouTube API Key: ')
+    # Did you press enter?
+    if not youTubeApiKey:
+        # Stop the program execution. Bye-Bye!
+        exit(0)
+
+# Search for Coding 101 videos using the channel ID and our API key
+youTubeResponse = urllib2.urlopen(
+    'https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCSxIcr2rZZcoU7rSGXaEQag&maxResults=20&order=date&key=' + youTubeApiKey)
+
+# Load the list of videos returned by YouTube
+videos = json.load(youTubeResponse)
+
+# Declare the episodes list
+episodes = []
+
+# Loop through the videos to fill in the episodes list
+for video in videos['items']:
+    # Ensure that it is a video
+    if video['id']['kind'] == 'youtube#video':
+        # Store the title, description and link of the video in our list, separated by tabs
+        # The format is: Title<TAB>Description<TAB>URL
+        episodes.append(
+            video['snippet']['title'] + '\t' + video['snippet']['description'] + '\t'
+            + 'http://youtube.com/watch?v=' + video['id']['videoId'])
+
+# Let's go. The program will execute until run = False
+run = True
+while run:
+    print
+    print 'Choose an episode:'
+    print
+
+    # Loop through and print the episodes list.
+    count = 0
+    for episode in episodes:
+        # Increment the loop count, same as: count = count + 1
+        count += 1
+        # Split the episode info using tab as the delimiter
+        episodeInfo = episode.split('\t')
+        # Print the loop count & title
+        # The count is converted into a str, and right justified
+        print '  {0}. {1}'.format(str(count).rjust(2), episodeInfo[0])
+
+    print
+
+    # Ask for the episode number
+    choice = raw_input('Enter 1-' + str(count) + ' (or ENTER to quit): ')
+
+    # Did you press enter?
+    if not choice:
+        # Stop the program execution. Bye-Bye!
+        run = False
+
+    # Validate the selected episode number. It must be a number...
+    elif choice.isdigit():
+        # Convert the selection to an integer
+        selection = int(choice)
+
+        # It must also be between 1 and the total number of episodes
+        # Could be written as: selection >= 1 and selection <= count
+        if 1 <= selection <= count:
+            print
+            print
+            print '=============================================================================='
+            # Split the selected episode info using tab as the delimiter, the list is zero-based
+            episodeInfo = episodes[selection - 1].split('\t')
+            # Print the episode title
+            print episodeInfo[0]
+            print
+            # Print the description, using textwrap to make it look pretty
+            print textwrap.fill(episodeInfo[1], width=76)
+            print
+            # Print the URL
+            print episodeInfo[2]
+            print '=============================================================================='
+            print
+            raw_input('Press ENTER to continue...')