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Author: AbhishekkGuatam

Diff for: 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

Diff for: 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"

Diff for: challenge5.py

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

Diff for: 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
+-------------------
+
+

Diff for: 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"
+

Diff for: 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"%"' \""
+

Diff for: 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.

Diff for: 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)
+

Diff for: 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
+

Diff for: 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)

Diff for: ex15_ReadingFiles.py

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+
+from sys import argv  #import argv from the sys module
+script, filename = argv #defines script and filenames are arguments
+txt = open(filename) #calls a method open on the file passed as an argument
+print "Here's your file %r:" % filename #print the filename
+print txt.read() #call the read command on the file being passed as an argument
+txt.close()
+print "Type the filename again:" # simple print statement
+file_again = raw_input("> ") #again ask name of the file 
+txt_again = open(file_again) #call open method on the file name which is passed recently
+print txt_again.read() #call read method on the file being passedrecently
+txt_again.close()
+

Diff for: ex15_sample.txt

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+This is stuff I typed into a file.
+It is really cool stuff.
+Lots and lots of fun to have in here.

Diff for: ex16_rnWrite.py

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+from sys import argv
+script, filename = argv
+print "this is your script name %r" % script
+print "We're going to erase %r." % filename
+print "If you don't want that, hit CTRL- C (^C)."
+print "If you do want that, hit RETURN."
+raw_input("?")
+print "Opening the file..."
+target1 = open(filename)
+target2 = target1.read()
+print "raw data in file \n %r" % target2
+print "\n\n\n\n"
+print "formatted data in file %s"%target2
+target1.close()
+target = open(filename, 'w')
+print "Truncating the file.Goodbye!"
+target.truncate()
+print "Now I'm going to ask you for three lines."
+line1 = raw_input("line 1: ")
+line2 = raw_input("line 2: ")
+line3 = raw_input("line 3: ")
+print "I'm going to write these to the file."
+target.write(line1)
+target.write("\n")
+target.write(line2)
+target.write("\n")
+target.write(line3)
+target.write("\n")
+print "And finally, we close it."
+target.close()

Diff for: ex16_rnw2.py

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+
+from sys import argv
+script , filename = argv
+print "This Program wil erase all contennt of selected file %r"%filename
+print "To Continue press ENTER and to Quit press "
+raw_input("?")
+print "opening file"
+target=open(filename, 'w')
+target.truncate()
+
+print "The Content of %r file deleted"%filename
+print "Now this part of program will attempt to rewrite the contents back into the file"
+print "To Continue press ENTER and to Quit press "
+raw_input("?")
+
+line1 = raw_input("Line 1: ")
+line2 = raw_input("Line 2: ")
+line3 = raw_input("Line 3: ")
+line = line1+"\n"+line2+"\n"+line3
+print "\n Now we gonna write these lines in you file using write method"
+target.write(line1+"\n"+line2+"\n"+line3)
+# target.write(line)
+
+print "Now we close the file"
+target.close()
+

Diff for: ex16_sample.txt

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+hello
+hi
+bye

Diff for: ex17_from.txt

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+hi i m a from filee

Diff for: ex17_morefiles.py

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+from sys import argv
+from os.path import exists
+
+script , fromfile, tofile = argv
+
+print "copying file %s from %s" % ( tofile, fromfile)
+
+in_file = open(fromfile, 'r')
+indata  = in_file.read()
+
+print "the input file is %d bytes long" % len(indata)
+print "does the output file exist %r" % exists(tofile)
+
+print "press ctrl+c to quit the program or Enter to continue"
+raw_input("?")
+
+out_file = open(tofile, 'w')
+out_file.write(indata)
+
+print "Allright Alldone !"
+
+in_file.close
+out_file.close
+
+

Diff for: ex17_short.py

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+from sys import argv
+script , fromfile, tofile = argv
+(open(tofile, 'w')).write(((open(fromfile, 'r')).read()))
+

Diff for: ex17_to.txt

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+hi i m a from filee

Diff for: ex18_Function.py

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+# this one is like your scripts with argv
+def print_two(*args):
+    arg1, arg2 = args
+    print "arg1: %r  arg2: %r" % (arg1, arg2)
+
+# ok, that *args is actually pointless, we can just do this
+
+def print_two_again(arg1, arg2):
+    print "arg1:  %r arg2: %r" % (arg1, arg2)
+    
+# this will only take one argument
+
+def print_one(arg1):
+    print "arg1: %r" % arg1
+    
+# this will print none as no arguments
+
+def print_no():
+    print "i'm not gonna do anything"
+    
+print_two('zed', 'shaw')
+print_two_again('abhishek', 'gautam')
+print_one('abhishekGautam')
+print_no()
+

Diff for: ex19_Func2.py

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+def cnc(chesecount, crackercount):
+    print "The chese count is %d" % chesecount
+    print "The Cracker count is %d" % crackercount
+    print "that's enfough for party man"
+    
+cnc(10, 20)
+
+amt_chese=20
+amt_cracker=30
+
+print "we can pass parameter in form of varibale"
+cnc(amt_chese, amt_cracker)
+
+print "we can even do maths while passing the argument"
+
+cnc(10+30, 30+40)
+
+print "we can combine both variables and maths"
+
+cnc(amt_chese+10, amt_cracker+20)
+
+

Diff for: ex20_funcnFile.py

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+from sys import argv
+script, input_file = argv
+def print_all(f):
+    print f.read()
+def rewind(f):
+    f.seek(0)
+def print_a_line(line_count, f):
+    print line_count, f.readline()
+current_file = open(input_file)
+print "First let's print the whole file:\n"
+print_all(current_file)
+print "Now let's rewind, kind of like a tape."
+rewind(current_file)
+print "Let's print three lines:"
+current_line = 1
+print_a_line(current_line, current_file)
+current_line += 1
+print_a_line(current_line, current_file)
+current_line += 1
+print_a_line(current_line, current_file)

Diff for: ex20_sample.txt

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+hello
+this
+is 
+a
+ multi
+ line 
+ document
+ 

Diff for: ex21_fcontd.py

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+def add(a, b):
+    print "ADDING %d + %d" % (a, b)
+    return a + b
+def subtract(a, b):
+    print "SUBTRACTING %d - %d" % (a, b)
+    return a - b
+def multiply(a, b):
+    print "MULTIPLYING %d * %d" % (a, b)
+    return a * b
+def divide(a, b):
+    print "DIVIDING %d / %d" % (a, b)
+    return a / b
+print "Let's do some math with just functions!"
+age = add(30, 5)
+height = subtract(78, 4)
+weight = multiply(90, 2)
+iq = divide(100, 2)
+print "Age: %d, Height: %d, Weight: %d, IQ: %d" % (age, height, weight, iq)
+# A puzzle for the extra credit, type it in anyway.
+print "Here is a puzzle."
+what = add(age, subtract(height, multiply(weight, divide(iq, 2))))
+print "That becomes: ", what, "Can you do it by hand?"