Comments on: Python Challenge level 5: “peak hell”

By: Thropian

Thropian — Fri, 19 Aug 2011 11:02:14 +0000

Even after I ran this I couldn’t figure out what all the “#” were for. It took me quite a while to realize I had to stretch the window, which annoyed me.

By: Ian Durkan

Ian Durkan — Fri, 25 Feb 2011 01:43:53 +0000

in case anyone else finds this post while wondering WTF the pickled data in Challenge 5 means, it’s a list of lists where each sub-list represents a line of console output. The sublists consist of pairs of characters and numbers of times to repeat the character.

print ”.join(map(lambda pair: pair[0]*pair[1], line))

map(F, line) means loop over each element (a pair here) in the list ‘line’, applying F to the element. pair[0] is a character (length-1 string), and pair[1] is a long, so pair[0] * pair[1] produces the character in pair[0] repeated pair[1] times.

By: g0rg0d

g0rg0d — Tue, 09 Nov 2010 19:39:01 +0000

could not get the meaning of the last line.
“print ”.join(map(lambda pair: pair[0]*pair[1], line))”
plz explain in little detail. Thanks

By: Demoli

Demoli — Wed, 04 Nov 2009 21:00:37 +0000

Thanks for this, I had no difficulty with the unpickling but just couldn’t figure out what the data meant.

I totally forgot that you can repeat strings with *, Python continues to impress me as I learn more.

By: Python Challenge | ??????

Python Challenge | ?????? — Sat, 10 Oct 2009 06:38:33 +0000

[...] Python Challenge level 5: “peak hell” | UnixWars Python ? Pickle [...]

By: Jhonny

Jhonny — Tue, 25 Aug 2009 06:10:55 +0000

hi, how about the instruction set ? like I for what (lp0 for what.