fixed python 3.x compatibility issues

fixed pep8 code style issues
fixed a shadowing unit test function

README.rst

@@ -10,35 +10,36 @@ A MOS 6502 Emulator intended to be used from within other programs.  All opcodes
 
 Example Usage:::
 
-	from py65emu.cpu import CPU
-	from py65emu.mmu import MMU
-
-	f = open("program.rom") #Open your rom
-
-	#define your blocks of memory.  Each tuple is
-	#(start_address, length, readonly=True, initial_value=None, value_offset=0)
-	m = MMU([
-		(0x00, 0x200), #Create RAM with 512 bytes
-		(0x1000, 0x4000, True, f) #Create ROM starting at 0x1000 with your program.
-	])
-
-	#Create the CPU with the MMU and the starting program counter address
-	#You can also optionally pass in a value for stack_page, which defaults
-	#to 1, meaning the stack will be from 0x100-0x1ff.  As far as I know this
-	#is true for all 6502s, but for instance in the 6507 used by the Atari 
-	#2600 it is in the zero page, stack_page=0.
-	c = CPU(mmu, 0x1000)
-
-	#Do this to execute one instruction 
-	c.step()
-
-	#You can check the registers and memory values to determine what has changed
-	print c.r.a 	# A register
-	print c.r.x 	# X register
-	print c.r.y 	# Y register
-	print c.r.s 	# Stack Pointer
-	print c.r.pc 	# Program Counter
-
-	print c.r.getFlag('C') #Get the value of a flag from the flag register.
-
-	print mmu.read(0xff) #Read a value from memory
+        from py65emu.cpu import CPU
+        from py65emu.mmu import MMU
+
+        f = open("program.rom", "rb")  # Open your rom
+
+        #define your blocks of memory.  Each tuple is
+        #(start_address, length, readonly=True, initial_value=None, value_offset=0)
+        m = MMU([
+                (0x00, 0x200), #Create RAM with 512 bytes
+                (0x1000, 0x4000, True, f) #Create ROM starting at 0x1000 with your program.
+        ])
+
+        #Create the CPU with the MMU and the starting program counter address
+        #You can also optionally pass in a value for stack_page, which defaults
+        #to 1, meaning the stack will be from 0x100-0x1ff.  As far as I know this
+        #is true for all 6502s, but for instance in the 6507 used by the Atari
+        #2600 it is in the zero page, stack_page=0.
+        c = CPU(mmu, 0x1000)
+
+        #Do this to execute one instruction
+        c.step()
+
+        #You can check the registers and memory values to determine what has changed
+        print c.r.a 	# A register
+        print c.r.x 	# X register
+        print c.r.y 	# Y register
+        print c.r.s 	# Stack Pointer
+        print c.r.pc 	# Program Counter
+
+        print c.r.getFlag('C') #Get the value of a flag from the flag register.
+
+        print mmu.read(0xff) #Read a value from memory
+

docs/conf.py

@@ -257,4 +257,4 @@
 #texinfo_show_urls = 'footnote'
 
 # If true, do not generate a @detailmenu in the "Top" node's menu.
-#texinfo_no_detailmenu = False
+#texinfo_no_detailmenu = False

docs/installation.rst

@@ -9,4 +9,5 @@ At the command line::
 Or, if you have virtualenvwrapper installed::
 
     $ mkvirtualenv py65emu
-    $ pip install py65emu
+    $ pip install py65emu
+

docs/usage.rst

@@ -4,4 +4,5 @@ Usage
 
 To use Python 6502 Emulator in a project::
 
-	import py65emu
+	import py65emu
+

py65emu/__init__.py

@@ -3,4 +3,4 @@
 
 __author__ = 'Jeremy Neiman'
 __email__ = '[email protected]'
-__version__ = '0.0.0'
+__version__ = '0.0.0'