Merge pull request #7 from Utkarsh1308/bugFix

Flash-card-Challenge

Flash-card-Challenge/README.md

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+# Project
+
+	Write a flash card quizzer from scratch
+	
+## Goals:
+
+* practice breaking down a problem and solving it in Python from scratch
+* practice command line option parsing
+* practice reading from files
+* practice working with dictionaries and for loops
+	
+## Problem statement:
+
+	Write a Python script that takes a file containing flash card questions and answers as an argument 
+	and quizzes the user based on the contents of that file until the user quits the program. Questions 
+	should be selected randomly (as opposed to going in order through the file), and the user should 
+	type in their guess. The script should say whether or not a guess is correct and provide the correct 
+	answer if an incorrect answer is given.
+	
+	The file will contain flash card challenges in the form:
+```	
+	question,answer
+	question,answer
+	question,answer
+	question,answer
+	...
+```
+	For example, a state capitals flash card file might have the form:	
+```		
+	Alabama,Montgomery
+	Alaska,Juneau
+	Arizona,Phoenix
+	...
+```	
+	Running the quizzer script with this file might look like this:
+```
+	$ python quizzer.py state_capitals.txt
+	Texas? Austin
+	Correct! Nice job.
+	New Mexico? Santa Fe
+	Correct! Nice job.
+	Oregon? Portland
+	Incorrect. The correct answer is Salem.
+	Virginia? Richmond
+	Correct! Nice job.
+	Virginia? Exit
+	Goodbye
+```
+## Breaking down the problem
+
+###	Step 1: Get the questions from a fixed flash card file 
+	
+	Download: http://web.mit.edu/jesstess/www/IntermediatePythonWorkshop/state_capitals.txt
+		
+	Write the code to open and read state_capitals.txt (we'll deal with getting a variable 
+	filename from the user later). Create a dictionary, where each comma-separated question and 
+	answer become a key and value in the dictionary. Note that each line in the file ends in a 
+	newline, which you'll need to remove from the word.
+		
+Step 1 resources:
+		
+* File I/O: http://docs.python.org/tutorial/inputoutput.html#reading-and-writing-files
+* Stripping characters (like whitespace and newlines) from a string: http://docs.python.org/library/stdtypes.html#str.strip
+			
+###	Step 2: Randomly select questions from the question dictionary
+		
+	Write a while loop that loops forever and at each iteration through the loop randomly 
+	selects a key/value pair from the questions dictionary and prints the question.
+		
+	To randomly select a key from the dictionary, you can use the random module, and in 
+	particular the random.choice function.
+		
+	When you run your script, to break out of the while loop you can press Control and then 
+	(while still holding down Control) c.
+
+Step 2 resources:
+		
+* While loops: http://en.wikibooks.org/wiki/Python_Programming/Flow_control#While_loops
+* Dictionary manipulation: http://docs.python.org/tutorial/datastructures.html#dictionaries
+			   In particular, look at getting a list of the dictionary's keys using the keys method.
+* Selecting a random value from a list using the random module: http://docs.python.org/library/random.html#random.choice
+			
+###	Step 3: Get and check the user's answer
+	
+	Inside your while loop, write the code that gets an answer from the user and compares it to 
+	the answer retrieved from the questions dictionary. If the answer is correct, say so. If 
+	the answer is incorrect, say so and print the correct answer.
+		
+	You can get input from a user using the raw_input function.
+		
+	It is up to you how strict you want to be with a user's answer. Do you want capitalization 
+	to matter?
+
+Step 3 resources:
+		
+* using raw_input to get data from the user: http://docs.python.org/library/functions.html#raw_input
+			
+###	Step 4: Allow the user to quit the program
+	
+	The while loop currently runs forever. Pick a special phrase (like "Exit") that the user 
+	can type instead of an answer that signals that they want to quit the program. When that 
+	special phrase is given, print a goodbye message and break out of the while loop to end the 
+	program.
+		
+Step 4 resources:
+		
+* Using the break keyword to break out of a loop: http://docs.python.org/tutorial/controlflow.html#break-and-continue-statements-and-else-clauses-on-loops
+* Making decisions with if, elif, and else: http://docs.python.org/tutorial/controlflow.html#if-statements
+			
+	Step 5: Get the quiz questions file from the user
+	
+	Write the code to get the quiz questions file from a command line argument. Handle the case 
+	where a user forgets to supply a file; in this case, print an error message saying they 
+	need to supply a file, and then exit the program using the exit() function.
+		
+Step 5 resources:
+		
+* Command line argument parsing: http://docs.python.org/library/argparse.html#module-argparse
+* Getting and checking the number of command line arguments: http://docs.python.org/library/sys.html
+
+<FINISHED>			

Flash-card-Challenge/flash_card_challenge.txt

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+Project
+
+	Write a flash card quizzer from scratch
+	
+Goals:
+
+	1. practice breaking down a problem and solving it in Python from scratch
+	2. practice command line option parsing
+	3. practice reading from files
+	4. practice working with dictionaries and for loops
+	
+Problem statement:
+
+	Write a Python script that takes a file containing flash card questions and answers as an argument 
+	and quizzes the user based on the contents of that file until the user quits the program. Questions 
+	should be selected randomly (as opposed to going in order through the file), and the user should 
+	type in their guess. The script should say whether or not a guess is correct and provide the correct 
+	answer if an incorrect answer is given.
+	
+Breaking down the problem
+
+	Step 1: Get the questions from a fixed flash card file 
+	
+		Download: http://web.mit.edu/jesstess/www/IntermediatePythonWorkshop/state_capitals.txt
+		
+		Write the code to open and read state_capitals.txt (we'll deal with getting a variable 
+		filename from the user later). Create a dictionary, where each comma-separated question and 
+		answer become a key and value in the dictionary. Note that each line in the file ends in a 
+		newline, which you'll need to remove from the word.
+		
+		Step 1 resources:
+		
+			1. File I/O: http://docs.python.org/tutorial/inputoutput.html#reading-and-writing-files
+			2. Stripping characters (like whitespace and newlines) from a string: http://docs.python.org/library/stdtypes.html#str.strip
+			
+	Step 2: Randomly select questions from the question dictionary
+		
+		Write a while loop that loops forever and at each iteration through the loop randomly 
+		selects a key/value pair from the questions dictionary and prints the question.
+		
+		To randomly select a key from the dictionary, you can use the random module, and in 
+		particular the random.choice function.
+		
+		When you run your script, to break out of the while loop you can press Control and then 
+		(while still holding down Control) c.
+
+		Step 2 resources:
+		
+			1. while loops: http://en.wikibooks.org/wiki/Python_Programming/Flow_control#While_loops
+			2. Dictionary manipulation: http://docs.python.org/tutorial/datastructures.html#dictionaries
+			   In particular, look at getting a list of the dictionary's keys using the keys method.
+			3. Selecting a random value from a list using the random module: http://docs.python.org/library/random.html#random.choice
+			
+	Step 3: Get and check the user's answer
+	
+		Inside your while loop, write the code that gets an answer from the user and compares it to 
+		the answer retrieved from the questions dictionary. If the answer is correct, say so. If 
+		the answer is incorrect, say so and print the correct answer.
+		
+		You can get input from a user using the raw_input function.
+		
+		It is up to you how strict you want to be with a user's answer. Do you want capitalization 
+		to matter?
+
+		Step 3 resources:
+		
+			1. using raw_input to get data from the user: http://docs.python.org/library/functions.html#raw_input
+			
+	Step 4: Allow the user to quit the program
+	
+		The while loop currently runs forever. Pick a special phrase (like "Exit") that the user 
+		can type instead of an answer that signals that they want to quit the program. When that 
+		special phrase is given, print a goodbye message and break out of the while loop to end the 
+		program.
+		
+		Step 4 resources:
+		
+			1. Using the break keyword to break out of a loop: http://docs.python.org/tutorial/controlflow.html#break-and-continue-statements-and-else-clauses-on-loops
+			2. Making decisions with if, elif, and else: http://docs.python.org/tutorial/controlflow.html#if-statements
+			
+	Step 5: Get the quiz questions file from the user
+	
+		Write the code to get the quiz questions file from a command line argument. Handle the case 
+		where a user forgets to supply a file; in this case, print an error message saying they 
+		need to supply a file, and then exit the program using the exit() function.
+		
+		Step 5 resources:
+		
+			1. Command line argument parsing: http://docs.python.org/library/argparse.html#module-argparse
+			2. Getting and checking the number of command line arguments: http://docs.python.org/library/sys.html
+			

Flash-card-Challenge/french_food.txt

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+la nourriture,food
+avoir faim,to be hungry
+manger,to eat
+le repas,meal
+le petit-déjeuner,breakfast
+le déjeuner,lunch
+le dîner,dinner
+le goûter,snack
+le hors d'Å“uvre,appetizer
+le plat principal,main course
+la salle à manger,dining room
+la confiture,jam
+le croissant,croissant
+la farine,flour
+les frites,French fries
+l'huile d'olive,olive oil
+la mayonnaise,mayonnaise
+la moutarde,mustard
+un Å“uf,egg
+le pain,bread
+le pain grillé,toast
+les pâtes,pasta
+le poivre,pepper
+le riz,rice
+le sel,salt
+le sucre,suga

Flash-card-Challenge/metric.txt

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+peta,quadrillion (10^15)
+tera,trillion (10^12)
+giga,billion (10^9)
+mega,million (10^6)
+kilo,thousand (10^3)
+hecto,hundred (10^2)
+deka,ten (10^1)
+deci,tenth (10^-1)
+centi,hundredth (10^-2)
+milli,thousandth (10^-3)
+micro,millionth (10^-6)
+nano,billionth (10^-9)
+pico,trillionth (10^-12)
+femto,quadrillionth (10^-15)

Flash-card-Challenge/quizzer.py

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+import random
+import argparse
+
+parser = argparse.ArgumentParser(description="Get the quiz questions file")
+parser.add_argument('file', help="a quiz file containing questions and answers")
+args = parser.parse_args()
+file = args.file
+
+state_capitals = {}
+with open(file) as f:
+	for line in f:
+		(key, val) = line.strip().split(',')
+		state_capitals[key] = val
+		
+while(True):
+	choice = random.choice(list(state_capitals.keys()))
+	answer = input(('{}? '.format(choice)))
+	if answer == state_capitals[choice]:
+		print("Correct! Nice job.")
+	elif answer.lower() == "exit":
+		print("Goodbye")
+		break
+	else:
+		print("Incorrect. The correct answer is {}".format(state_capitals[choice]))

Flash-card-Challenge/state_capitals.txt

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+Alabama,Montgomery
+Alaska,Juneau
+Arizona,Phoenix
+Arkansas,Little Rock
+California,Sacramento
+Colorado,Denver
+Connecticut,Hartford
+Delaware,Dover
+Florida,Tallahassee
+Georgia,Atlanta
+Hawaii,Honolulu
+Idaho,Boise
+Illinois,Springfield
+Indiana,Indianapolis
+Iowa,Des Moines
+Kansas,Topeka
+Kentucky,Frankfort
+Louisiana,Baton Rouge
+Maine,Augusta
+Maryland,Annapolis
+Massachusetts,Boston
+Michigan,Lansing
+Minnesota,Saint Paul
+Mississippi,Jackson
+Missouri,Jefferson City
+Montana,Helena
+Nebraska,Lincoln
+Nevada,Carson City
+New Hampshire,Concord
+New Jersey,Trenton
+New Mexico,Santa Fe
+New York,Albany
+North Carolina,Raleigh
+North Dakota,Bismarck
+Ohio,Columbus
+Oklahoma,Oklahoma City
+Oregon,Salem
+Pennsylvania,Harrisburg
+Rhode Island,Providence
+South Carolina,Columbia
+South Dakota,Pierre
+Tennessee,Nashville
+Texas,Austin
+Utah,Salt Lake City
+Vermont,Montpelier
+Virginia,Richmond
+Washington,Olympia
+West Virginia,Charleston
+Wisconsin,Madison
+Wyoming,Cheyenne