> Thanks Alan, but can you please explain me what this line
> does:
> diff = [t1==t2 for t1,t2 in zip(line1,line2)].index(False)
>
I'll unfold it somewhat:
mix = zip(a,b)
produces a list of tuples:
[(a1,b1)(a2,b2),(a3,b3)]
t1 == t2
produces a boolean result either True or False
for t1,t2 in mix
unpacks each tuple from the zipped list
Putting it back together in long hand
mix = zip(aLine1,aLine2)
results = []
for t1,t2 in mix:
if t1 == t2:
results.append(True)
else: results.append(False)
diff = results.index(False)
finds the index of the first instance of False
in results
Lets look at it as a comprehension again:
diff = [t1==t2 for t1,t2 in zip(aLine1,aLine2)].index(False)
Does that make sense now? Can you see the various
bits at work?
Alan G.
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