Python Challenge - Level 6
Problem
Pants? And Spiderman's underwear?
There's no text or any useful info in the source comments except for a call out of the donation button, but the big hint is at the very first line of html(and I missed it...):
<html>
<!-- <-- zip -->
</html>
Ok... the image was about "zip", not "pants" or anything under it...
Replace html with zip: http://www.pythonchallenge.com/pc/def/channel.zip
Unzip it. In readme.txt:
welcome to my zipped list.
hint1: start from 90052
hint2: answer is inside the zip
Solution
>>> import zipfile, re
>>>
>>> f = zipfile.ZipFile("resources/channel.zip")
>>> num = '90052'
>>> while True:
... content = f.read(num + ".txt").decode("utf-8")
... print(content)
... match = re.search("Next nothing is (\d+)", content)
... if match == None:
... break
... num = match.group(1)
...
Next nothing is 94191
Next nothing is 85503
Next nothing is 70877
...
Next nothing is 68628
Next nothing is 67824
Next nothing is 46145
Collect the comments.
Comments.. what comments?
It turns out that zip file may contain some comments, and they can be accessed by:
- ZipFile.comment: comment associated with the ZIP file.
- ZipInfo.comment: comment for the individual archive member.
Add a few lines to collect the comments:
>>> num = '90052'
>>> comments = []
>>> while True:
... content = f.read(num + ".txt").decode("utf-8")
... comments.append(f.getinfo(num + ".txt").comment.decode("utf-8"))
... content
... match = re.search("Next nothing is (\d+)", content)
... if match == None:
... break
... num = match.group(1)
...
>>> print("".join(comments))
****************************************************************
****************************************************************
** **
** OO OO XX YYYY GG GG EEEEEE NN NN **
** OO OO XXXXXX YYYYYY GG GG EEEEEE NN NN **
** OO OO XXX XXX YYY YY GG GG EE NN NN **
** OOOOOOOO XX XX YY GGG EEEEE NNNN **
** OOOOOOOO XX XX YY GGG EEEEE NN **
** OO OO XXX XXX YYY YY GG GG EE NN **
** OO OO XXXXXX YYYYYY GG GG EEEEEE NN **
** OO OO XX YYYY GG GG EEEEEE NN **
** **
****************************************************************
**************************************************************
If you try http://www.pythonchallenge.com/pc/def/hockey.html, you will get
it's in the air. look at the letters.
The right answer is in the letters: oxygen
Put Everything Together
import zipfile, re
f = zipfile.ZipFile("channel.zip")
print(f.read("readme.txt").decode("utf-8"))
num = '90052'
comments = []
while True:
content = f.read(num + ".txt").decode("utf-8")
comments.append(f.getinfo(num + ".txt").comment.decode("utf-8"))
print(content)
match = re.search("Next nothing is (\d+)", content)
if match == None:
break
num = match.group(1)
print("".join(comments))