On 11/04/14 00:27, Gregg Martinson wrote:
I have been working through a fairly simple process to teach myself
python and I am running into a problem with a comparison. Can anyone
tell me where I am going wrong?
#!/usr/bin/env python
class Team(object):
code = ""
opponents_debated=[]
wins=0
losses=0
competitors=[]
All of these variables are class variables rather than instance
variables. That means they are *shared* by all instances.
def __init__(self, code):
self.code = code
self.competitors.append(code)
#self.school_teams.append(code)
So when you run init() you are changing the values for all your teams.
I strongly suspect you want those variables inside init so that each
object has its own value?
####HERE'S THE LOGIC PROBLEM
def havedebated(self, otherTeam):
print (self.code, "compares ", otherTeam, "is in",self.competitors)
if otherTeam in self.competitors:
return 1
else:
return 0
When you do the comparison you are checking against the shared
collection which will, I think, have all the teams in it, so it will
always be true.
I haven't studied that in detail but that's what a quick
glance suggests to me.
hth
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos
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