removed stray non-printing unicode characters

W. Trevor King: I dropped everything from the original 64f4940 except
for the lessons/thw-testing/exercises.md modification.

Conflicts:
	lessons/thw-numpy/long_exercise.md
	lessons/thw-python/obj-orientation/exercises/oop.markdown
	setup/bin/README.md

diff --git a/lessons/thw-testing/exercises.md b/lessons/thw-testing/exercises.md
index fb25fe1c04e1698736fa99a5c447459e08765111..5787268878f6de703c4d5080fd08e18841a4b82f 100644 (file)
--- a/lessons/thw-testing/exercises.md
+++ b/lessons/thw-testing/exercises.md
@@ -3,14 +3,14 @@ asking you to submit your solutions to these exercises and then we will post up
 solutions at the start of next week. We encourage you to discuss your approaches
 or solutions on the course forum!
 
-To submit your exercises, please create a `testing` folder in your personal
+To submit your exercises, please create a `testing` folder in your personal
 folder in the course repository. Place all of the code and files for theses
 exercises in that folder and be sure to check it in.
 
 
 ## Exercise 1: Mileage
 
-The function 'convert_mileage' converts miles per gallon (US style) to liters
+The function 'convert_mileage' converts miles per gallon (US style) to liters
 per 100 km (metric style):
 
 ```python
@@ -23,12 +23,12 @@ per 100 km (metric style):
         return litres_per_100_km
 ```
 
-Create a subdirectory in your version control directory called `testing`, then
-copy this function into a file in that directory called `mileage.py`. Add more
-code to that file to repeatedly ask the user for a mileage in miles per gallon,
+Create a subdirectory in your version control directory called `testing`, then
+copy this function into a file in that directory called `mileage.py`. Add more
+code to that file to repeatedly ask the user for a mileage in miles per gallon,
 and output the mileage in liters per 100 km, until the user enters the string
-"`q`". You will need to use the `float()` function to convert from string to a
-floating point number. Use the '`if __name__ == "__main__":`' trick to ensure
+"`q`". You will need to use the `float()` function to convert from string to a
+floating point number. Use the '`if __name__ == "__main__":`' trick to ensure
 that the module can be imported without executing your testing code.
 
 1. Copy `mileage.py` to create `tryexcept.py` Add a try/except block to the new
@@ -44,20 +44,20 @@ to use for invalid input. Create a copy of 'tryexcept.py' called 'raiser.py'
 that raises this exception; modify the main body of your program to catch it;
 and add a comment inside the file explaining why you chose the exception you
 did. (Note: you have to call this file `raiser.py`, not `raise.py` because
-'import raise' is an error. Â Can you see why?)
+'import raise' is an error. (Can you see why?)
 
 3. [According to
 Google](http://www.google.ca/search?q=20+miles+per+gallon+in+litres+per+100+km&gbv=1),
 20 miles per gallon are equivalent to 11.7607292 liters per 100 km. Use these
 values to write a unit test. Keep in mind that these floating values are subject
 to truncation and rounding errors. Save the test case in a file called
-`test_mileage.py` and run it using the `nosetests` command. Â Note:
+`test_mileage.py` and run it using the `nosetests` command. ( Note:
 `test_mileage.py` should use '`from raiser import convert_mileage`' to get the
 final version of your mileage conversion function.
 
 4. Now add a second test case, for 40 miles per gallon equivalent to 5.88036458
-liters per 100 km and run the tests again. Â Unless you have already fixed the
-error that was present in the initial function, your test should fail. Â Find
+liters per 100 km and run the tests again.  Unless you have already fixed the
+error that was present in the initial function, your test should fail.  Find
 and fix the error; submit your new function in a file called 'final_mileage.py'.