[Tutor] why wont this code run?

Mon Jan 27 09:00:03 2003

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What actually happens? Error codes and output are always helpful...

-----Original Message-----
From: tutor-admin@python.org [mailto:tutor-admin@python.org]On Behalf Of
GREENDAY31087@aol.com
Sent: 27 January 2003 01:05
To: tutor@python.org
Subject: [Tutor] why wont this code run?

class Map:
         def __init__(self):
             self.__grid={} # Don't assume global startroom
         def addRoom(self, room, x, y):
             if self.__grid.has_key((x,y)):
                 raise KeyError, "Location occupied"
             self.__grid[(x, y)] = room
         def getRoom(self, x, y):
             return self.__grid[(x, y)]
         def getLocation(self, room):
             for coord, aRoom in self.__grid.items():
                 if room == aRoom:
                     return coord
             raise KeyError

    class Room:
         def __init__(self, map, x=0, y=0):
             self.__map = map
             map.addRoom(self, x, y)
         def dig(direction):

The class TRoom doewsn't align with the class Map.
The dig method is undefined.
There are only 2 class definitions, you never create instances, so its hard
to 
know what you think the code will do if it were to "run".

Alan G.

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<DIV>What 
actually happens? Error codes and output are always 
helpful...</DIV>
<BLOCKQUOTE 
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid">
 <DIV class=OutlookMessageHeader dir=ltr align=left>-----Original Message----- From: tutor-admin@python.org 
 [mailto:tutor-admin@python.org]On Behalf Of 
 GREENDAY31087@aol.com Sent: 27 January 2003 01:05 To: 
 tutor@python.org Subject: [Tutor] why wont this code 
 run? </DIV>
 <DIV>class 
 Map: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; def 
 __init__(self): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 self.__grid={} # Don't assume global 
 startroom &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; def 
 addRoom(self, room, x, 
 y): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 if 
 self.__grid.has_key((x,y)): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 raise KeyError, "Location 
 occupied" &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 self.__grid[(x, y)] = room &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 def getRoom(self, x, 
 y): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 return self.__grid[(x, y)] &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 def getLocation(self, 
 room): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 for coord, aRoom in 
 self.__grid.items(): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 if room == 
 aRoom: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 return 
 coord &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 raise KeyError &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; class 
 Room: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; def __init__(self, 
 map, x=0, 
 y=0): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 self.__map = 
 map &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 map.addRoom(self, x, y) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 def dig(direction): &nbsp;</DIV>
 <DIV>The class TRoom doewsn't align 
 with the class Map.</DIV>
 <DIV>The dig method is 
 undefined.</DIV>
 <DIV>There are only 2 class definitions, you 
 never create instances, so its hard to </DIV>
 <DIV>know what you think the code will do if 
 it were to "run".</DIV>
 <DIV>&nbsp;</DIV>
 <DIV>Alan 
G.</DIV></BLOCKQUOTE></BODY></HTML>

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