Example for Episode 17

episode14/coding101.py

@@ -13,11 +13,11 @@ import textwrap
 print '================================ CODING 101 ================================'
 
 # Open the file
-episodeFile = open('coding101.txt', 'r')
+episode_file = open('coding101.txt', 'r')
 # Read the lines into a list
-linesFromFile = episodeFile.readlines()
+lines_from_files = episode_file.readlines()
 # Close the file
-episodeFile.close()
+episode_file.close()
 
 # Let's go. The program will execute until run = False
 run = True
@@ -30,7 +30,7 @@ while run:
 
     # Loop through the episodes list.
     count = 0
-    for line in linesFromFile:
+    for line in lines_from_files:
         # Increment the episode number
         count += 1
         # Split the line using tab as the delimiter
@@ -62,7 +62,7 @@ while run:
             print
             print '============================================================================'
             # Get and split the line for the episode, the list is zero-based
-            episode = linesFromFile[selection - 1].split('\t')
+            episode = lines_from_files[selection - 1].split('\t')
             # Print the episode title and aired date
             print 'Episode #' + choice + ": \"" + episode[1] + '" aired on ' + episode[0]
             print

episode15/codingYouTube101.py

@@ -15,7 +15,7 @@ import urllib2
 import json
 
 # Your YouTube API key from https://developers.google.com/youtube/registering_an_application
-youTubeApiKey = ''
+youtube_api_key = ''
 
 # Print opening title
 print '============================= CODING YOUTUBE 101 ============================='
@@ -23,19 +23,19 @@ print '============================= CODING YOUTUBE 101 ========================
 print
 
 # Ask for the API key if none is specified above
-while not youTubeApiKey.isalnum():
+while not youtube_api_key.isalnum():
-    youTubeApiKey = raw_input('Enter your YouTube API Key: ')
+    youtube_api_key = raw_input('Enter your YouTube API Key: ')
     # Did you press enter?
-    if not youTubeApiKey:
+    if not youtube_api_key:
         # Stop the program execution. Bye-Bye!
         exit(0)
 
 # Search for Coding 101 videos using the channel ID and our API key
-youTubeResponse = urllib2.urlopen(
+youtube_response = urllib2.urlopen(
-    'https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCSxIcr2rZZcoU7rSGXaEQag&maxResults=20&order=date&key=' + youTubeApiKey)
+    'https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCSxIcr2rZZcoU7rSGXaEQag&maxResults=20&order=date&key=' + youtube_api_key)
 
 # Load the list of videos returned by YouTube
-videos = json.load(youTubeResponse)
+videos = json.load(youtube_response)
 
 # Declare the episodes list
 episodes = []
@@ -64,10 +64,10 @@ while run:
     count = 0
     for episode in episodes:
         # Split the episode info using tab as the delimiter
-        episodeInfo = episode.split('\t')
+        episode_info = 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 '  {0}. {1}'.format(str(count).rjust(2), episode_info[0])
         # Increment the loop count, unless we're on the last episode
         if (count + 1) < len(episodes):
             # Same as: count = count + 1
@@ -95,15 +95,15 @@ while run:
             print
             print '=============================================================================='
             # Split the selected episode info using tab as the delimiter
-            episodeInfo = episodes[selection].split('\t')
+            episode_info = episodes[selection].split('\t')
             # Print the episode title
-            print episodeInfo[0]
+            print episode_info[0]
             print
             # Print the description, using textwrap to make it look pretty
-            print textwrap.fill(episodeInfo[1], width=76)
+            print textwrap.fill(episode_info[1], width=76)
             print
             # Print the URL
-            print episodeInfo[2]
+            print episode_info[2]
             print '=============================================================================='
             print
             raw_input('Press ENTER to continue...')

episode16/randomizer.py

@@ -17,30 +17,30 @@ max = 100
 fileName = 'random.txt'
 
 # Initialize the list of random numbers
-randomNumbers = []
+random_numbers = []
 
 print
 print 'Generating ' + str(max) + ' random numbers...'
 print
 
 # Initialize the print counter
-printCounter = 0
+print_counter = 0
 # Loop until we have 100 random numbers in our list
-while len(randomNumbers) < max:
+while len(random_numbers) < max:
     # Get a random number between 0 and 100
-    randint = randrange(max)
+    rand_int = randrange(max)
     # Append the random number to our list
-    randomNumbers.append(randint)
+    random_numbers.append(rand_int)
     # Print the random number, converted to a string and right justified
     # See: http://www.tutorialspoint.com/python/string_rjust.htm
     # The comma at the end prevents a new line from being printed
-    print '  ' + str(randint).rjust(2),
+    print '  ' + str(rand_int).rjust(2),
     # Increment the print counter, same as: printCounter = printerCounter + 1
-    printCounter += 1
+    print_counter += 1
     # If the print counter is 10, print a new line, and reset the counter
-    if printCounter == 10:
+    if print_counter == 10:
         print
-        printCounter = 0
+        print_counter = 0
 
 print
 raw_input('Press ENTER to continue...')
@@ -50,21 +50,21 @@ print 'Sorting...'
 print
 
 # Sort the numbers
-randomNumbers.sort()
+random_numbers.sort()
 
 # Open the file for writing, it will be closed automatically when done
 with open(fileName, 'w') as f:
-    printCounter = 0
+    print_counter = 0
     # Loop through our random number list.
-    for number in randomNumbers:
+    for number in random_numbers:
         # Write the number to the file, followed by a new line
         f.write(str(number) + '\n')
         # Also print the number on screen
         print '  ' + str(number).rjust(2),
-        printCounter += 1
+        print_counter += 1
-        if printCounter == 10:
+        if print_counter == 10:
             print
-            printCounter = 0
+            print_counter = 0
 
 print
 print 'The numbers have been written to "' + fileName + '"'

episode17/.gitignore

@@ -0,0 +1,2 @@
+.idea
+random.txt

episode17/README.txt

@@ -0,0 +1,3 @@
+Example for TWiT Coding 101 - Episode 17
+
+Displays Shannon's wedding RSVP list with options to sort (all, yes, no, not replied) and save.

episode17/rsvp.py

@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+
+# Coding 101: RSVP
+#
+# Written by Erik C. Thauvin (erik@thauvin.net)
+# http://erik.thauvin.net/
+# http://github.com/ethauvin/coding101/
+# May 18, 2014
+
+# The name and extension of the file containing the RSVP list
+file_name = 'rsvp'
+file_ext = '.txt'
+
+# The RSVP statuses
+status_yes = 'Yes'
+status_no = 'No'
+status_nr = 'Not Replied'
+
+# Print the banner
+print '=================================== RSVP ====================================='
+
+# Initialize the RSVP list
+rsvp_list = []
+# Read the file, line by line
+for line in open(file_name + file_ext):
+    # Append the split line as a tuple to our list
+    # The file format is: name,status
+    # e.g.: Shannon Morse,Yes
+    # See: http://www.tutorialspoint.com/python/string_split.htm
+    #      http://www.tutorialspoint.com/python/string_strip.htm
+    #      http://www.tutorialspoint.com/python/python_tuples.htm
+    rsvp_list.append(tuple(line.strip().split(',', 1)))
+
+# Sort the list by names
+rsvp_list.sort(key=lambda rsvp: rsvp[0])
+
+
+#
+# Function to save the list based on the specified status
+#
+def save_list(status):
+    # Create a new file using the status
+    # e.g: rsvp-yes.txt, rsvp-no.txt, rsvp-not-replied.txt
+    # See: http://www.tutorialspoint.com/python/string_replace.htm
+    #      http://www.tutorialspoint.com/python/string_lower.htm
+    new_file = file_name + '-' + status.replace(' ', '-').lower() + file_ext
+    # Open the file for writing, it will be closed automatically when done
+    with open(new_file, 'w') as f:
+        # Loop through the RSVP list
+        for rsvp in rsvp_list:
+            # Determine if the line should be saved, by comparing its status
+            # The statuses are all lower-cased, so the comparison is case-insensitive
+            is_save = False
+            if status.lower() == rsvp[1].lower() == status_yes.lower():
+                is_save = True
+            elif status.lower() == rsvp[1].lower() == status_no.lower():
+                is_save = True
+            elif status.lower() == rsvp[1].lower() == status_nr.lower():
+                is_save = True
+
+            if is_save:
+                # Write the name, followed by a new line
+                f.write(rsvp[0] + '\n')
+    print
+    print 'The list have been written to "' + new_file + '"'
+    print
+
+
+#
+# Function to display the list based on the specified status, if any
+#
+def display_list(status=None):
+    # Print the columns header
+    print
+    print ' #  Name                                                                  RSVP'
+    print '=============================================================================='
+    # The displayed line count
+    count = 1
+    for rsvp in rsvp_list:
+        # Determine if the line should be displayed by comparing its status
+        is_print = False
+        if status is None:
+            is_print = True
+        elif status.lower() == rsvp[1].lower() == status_yes.lower():
+            is_print = True
+        elif status.lower() == rsvp[1].lower() == status_no.lower():
+            is_print = True
+        elif status.lower() == rsvp[1].lower() == status_nr.lower():
+            is_print = True
+
+        if is_print:
+            # Print the count, name and status using right and left justification
+            # See: http://www.tutorialspoint.com/python/string_rjust.htm
+            #      http://www.tutorialspoint.com/python/string_ljust.htm
+            #      http://www.tutorialspoint.com/python/string_title.htm
+            print '{0}. {1} {2}'.format(str(count).rjust(2), rsvp[0].title().ljust(58), rsvp[1].title().rjust(15))
+            # Increment the count, same as: count = count + 1
+            count += 1
+    print
+
+    # Present the option to save the list to a file, is the status is specified
+    if status is not None:
+        save = raw_input('Type \'s\' to save or ENTER to continue: ')
+        if save == 's':
+            save_list(status)
+    else:
+        raw_input('Press ENTER to continue...')
+
+#
+# Let's go. The program will execute until run = False
+#
+run = True
+while run:
+    # Print the options
+    print
+    print 'Choose an option:'
+    print
+    print '\t1. RSVP: All'
+    print '\t2. RSVP: ' + status_yes
+    print '\t3. RSVP: ' + status_no
+    print '\t4. RSVP: ' + status_nr
+    print
+    choice = raw_input('Enter option (or ENTER to quit): ')
+
+    # Did you press enter?
+    if not choice:
+        # Stop the program execution. Bye-Bye!
+        run = False
+
+    # Validate the selected option. It must be a number...
+    elif choice.isdigit():
+        # Convert the selected option to an int
+        selection = int(choice)
+        # Display the list based on the selected status
+        if selection == 1:
+            display_list()
+        elif selection == 2:
+            display_list(status_yes)
+        elif selection == 3:
+            display_list(status_no)
+        elif selection == 4:
+            display_list(status_nr)

episode17/rsvp.txt

@@ -0,0 +1,11 @@
+Shannon Morse,Yes
+Keith Coffman,Yes
+Aunt Morse,No
+Cranky Hippo,Yes
+Daddy Morse,Not Replied
+Mommy Coffman,Yes
+Mommy Morse,Yes
+Nana Morse,Yes
+Officiant Tom,Yes
+Papa Coffman,Yes
+Sister Kate,No