Added zip_bingo.py

section_05_(loops)/zip_bingo.py

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+# Basic bingo using zip()
+
+words = ['apple', 'banana', 'carrot', 'danke', 'elephant', 'fruit', 'gorilla', 'horse, michael', 'ice cream', 'jack, one eye', 'kazoo', 'lollerskates', 'mango', 'noodles', 'oboe', 'porcupine', 'quill', 'rowboat', 'sailboat', 'trolley', 'umbrella', 'voltage', 'watermelon', 'xylophobe', 'yarn', 'zebra-clops']
+
+print "words has {0} words in the list.".format(len(words))
+
+output = ''
+
+# Normal for loops allow you to loop over a list and do something for each item in that list.
+# A for loop using zip() allows you to loop over multiple lists and do something with each item in those lists at the same time.
+# Normally, you'll want to do that with lists that are the same size.  But it still works if one list is shorter; it just behaves a little differently.
+
+# In this case, words is 26 items long and range(25) is 25 items long
+# So the for loop will only run 25 times in this case.
+
+# No matter how many more items you add to words, your bingo board should only have 25 squares.
+
+# If you uncomment lines #19 and #20, you'll get a random bingo board every time you run!
+# import random
+# random.shuffle(words)
+
+for word, position in zip(words, range(25)):
+
+	if position == 12:
+		output += 'Free space,'
+	else:
+		output += "{0},".format(word)
+
+	if position in (4,9,14,19,24):
+		output += "\n"
+
+print output
+
+# apple,banana,carrot,danke,elephant,
+# fruit,gorilla,horse, michael,ice cream,jack, one eye,
+# kazoo,lollerskates,Free space,noodles,oboe,
+# porcupine,quill,rowboat,sailboat,trolley,
+# umbrella,voltage,watermelon,xylophobe,yarn,