a bit of clarification and simiplification

Author: PythonCHB

source/examples/file_exercise/students.txt

@@ -23,8 +23,8 @@ Mitchell, Joni: php, mysql, python
 Ramone, John: Johnny, rex, db
 King, Carol: r
 Waters, Muddy: perl, python
-Star, Richard: Ringo, Tom, shell, python, vb
-Smith, Patricia: Patti, Gene, python
+Star, Richard: Ringo, shell, python, vb
+Smith, Patricia: Patti, python
 Morrison, Jim: fortran, perl, sql, python
 Marley, Robert: Bob, c, c++, lisp
 Simon, Paul: bash, python, sql

source/exercises/file_lab.rst

@@ -16,13 +16,10 @@ Paths and File Processing
 =========================
 
 * Write a program which prints the full path for all files in the current
-  directory, one per line
+  directory, one per line. Use either the ``os`` module or ``pathlib``.
 
 * Write a program which copies a file from a source, to a destination
-  (without using shutil, or the OS copy command).
-
-  - Advanced: make it work for any size file: i.e. don't read the entire
-    contents of the file into memory at once.
+  (without using shutil, or the OS copy command (you are essentially writing a simple version of the OS copy command)).
 
   - This should work for any kind of file, so you need to open
     the files in binary mode: ``open(filename, 'rb')`` (or ``'wb'`` for
@@ -31,6 +28,9 @@ Paths and File Processing
 
   - Test it with both text and binary files (maybe a jpeg or something of your choosing).
 
+  - Advanced: make it work for any size file: i.e. don't read the entire
+    contents of the file into memory at once.
+
   - This should only be a few lines of code :-)
 
 
@@ -43,9 +43,9 @@ Download this text file:
 
 In it, you will find a list of names and what programming languages they have used in the past. This may be similar to a list generated at the beginning of this class.
 
-Write a little script that reads that file, and generates a list of all the languages that have been used.
+Write a little script that reads that file and generates a list of all the languages that have been used.
 
-What might be the best data structure to use to keep track of bunch of values without duplication?
+What might be the best data structure to use to keep track of bunch of values (the languages) without duplication?
 
 The file format:
 ----------------
@@ -62,5 +62,7 @@ So a colon after the name, then the nickname, and then one or more languages.
 
 However, like real data files, the file is NOT well-formed. Only some lines have nicknames, and other small differences, so you will need to write some code to make sure you get it all correct.
 
+How can you tell the difference between a nickname and a language?
+
 Extra challenge: keep track of how many students specified each language.