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Author: AbhishekkGuatam

Ex39_Dictionary.py

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+# create a mapping of state to abbreviation
+states = [
+    'Oregon': 'OR',
+    'Florida': 'FL',
+    'California': 'CA',
+    'New York': 'NY',
+    'Michigan': 'MI'
+]
+
+
+# create a basic set of states and some cities in them
+cities = [
+    'CA': 'San Francisco',
+    'MI': 'Detroit',
+    'FL': 'Jacksonville'
+]
+# add some more cities
+cities['NY'] = 'New York'
+cities['OR'] = 'Portland'
+
+# print out some cities
+print '- ' * 10
+print "NY State has: ", cities['NY']
+print "OR State has: ", cities['OR']
+# print some states
+print '- ' * 10
+print "Michigan's abbreviation is: ", states['Michigan']
+print "Florida's abbreviation is: ", states['Florida']
+# do it by using the state then cities dict
+print '- ' * 10
+print "Michigan has: ", cities[states['Michigan']]
+print "Florida has: ", cities[states['Florida']]
+# print every state abbreviation
+print '- ' * 10
+for state, abbrev in states.items():
+    print "%s is abbreviated %s" % (state, abbrev)
+# print every city in state
+print '- ' * 10
+for abbrev, city in cities.items():
+    print "%s has the city %s" % (abbrev, city)
+# now do both at the same time
+print '- ' * 10
+for state, abbrev in states.items():
+    print "%s state is abbreviated %s and has city %s" % (
+state, abbrev, cities[abbrev])
+print '- ' * 10
+# safely get an abbreviation by state that might not be there
+state = states.get('Texas', None)
+if not state:
+    print "Sorry, no Texas."
+# get a city with a default value
+city = cities.get('TX', 'Does Not Exist')
+print "The city for the state 'TX' is: %s" % city

challenge3.py

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+n = int(raw_input())
+
+if n%2 != 0:
+    print "Weird"
+elif n%2 == 0:
+    if (n>=2 and n<=5):
+        print "Not Weird"
+    elif (n>=6 and n<=20):
+        print "Weird"
+    elif (n>20):
+        print "Not Weird"

challenge5.py

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+a = int(raw_input())
+b = int(raw_input())
+print a/b
+print float(a)/b

doubts.txt

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+Write at least one more function of your own design, and run it 10 different ways. pg 88
+filename.seek(0)
+open
+flush
+non blocking mode
+decorator expression (pydoc def)
+lambda expressions
+doubt test.py
+ex39
+ex42 last 3 comment left
+
+
+////////////////////////////////////////////
+
+CODE aNALYSIS DOUBT
+-------------------
+
+

ex1.py

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+print "hi "
+print "hello again"
+# print "I'm typing this" now this line a become a comment due to placing orthoscope '#'
+print "hello i m typing a line again"
+

ex10_Escape.py

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+tabby_cat = "\tI'm tabbed in."
+persian_cat = "I'm split\non a line."
+backslash_cat = "I'm \\ a \\ cat."
+fat_cat = """
+I'll do a list:
+\t* Cat food
+\t* Fishies
+\t* Catnip\n\t* Grass
+"""
+print tabby_cat
+print persian_cat
+print backslash_cat
+print fat_cat
+ 
+print '\n \t %r'%'\'\t "'
+print '\n %s'%'\' "'
+
+
+print "\n %r"%"' \""
+print "\n %s"%"' \""
+

ex11_inputs.py

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+print "how old are you?",
+age=raw_input()
+print "what is your weight?",
+weight=raw_input()
+print "how tall are you?",
+tall=raw_input()
+print "hey i want to ask some more question"
+print"do you know about stuxnet",
+
+#Notice that we put a , (comma) at the end of each print line. This is so that
+#print doesn’t end the line with a new line character and go to the next line.

ex12_PromptedInputs.py

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+age = raw_input("How old are you? ")
+height = raw_input("How tall are you? ")
+weight = raw_input("How much do you weigh? ")
+
+print "So, you're %r old, %r tall and %r heavy." % (
+age, height, weight)
+

ex13_arguments.py

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+from sys import argv
+script, first, second, third = argv
+print "The script is called:", script
+print "Your first variable is:", first
+print "Your second variable is:", second
+print "Your third variable is:", third
+

ex14_PromptAndPassing.py

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+
+from sys import argv
+script, user_name = argv
+prompt = '> '
+print "Hi %s, I'm the %s script." % (user_name, script)
+print "I'd like to ask you a few questions."
+print "Do you like me %s?" % user_name
+likes = raw_input(prompt)
+print "Where do you live %s?" % user_name
+lives = raw_input(prompt)
+print "What kind of computer do you have?"
+computer = raw_input(prompt)
+print """
+Alright, so you said %r about liking me.
+You live in %r. Not sure where that is.
+And you have a %r computer. Nice.
+""" % (likes, lives, computer)