Lecture 6

[winterthunder]

So, who thinks the other professor was better? I'm finding this guy harder to follow, though I did catch that computers can be wrong and paranoia is good.

Paranoia, paranoia everybody's coming to get me...

Er.

I have to say, I understand the whole lists, appending lists, concatenating lists idea, but I'm not following the code. For the universities bit, what are all the raw_inputs there for? Is the for loop just there to show that appending lists is messy? And which line is the concatenate? Is it "Univs = Techs + Ivys"?

(Class handout is here, and I've pasted the relevant code section under the cut.)


Techs = ['MIT', 'Cal Tech']
print Techs
Ivys = ['Harvard', 'Yale', 'Brown']
print Ivys
Univs = []
Univs.append(Techs)
print Univs
Univs.append(Ivys)
raw_input()
print Univs
raw_input()
for e in Univs:
> print e
> for c in e: print c
raw_input()
Univs = Techs + Ivys
print Univs
raw_input()
Ivys.remove('Harvard')
print Univs
Ivys[1] = -1
print Ivys