print('Next nothings:')
delim = 'Next nothing is '
linked_list = dict()
for txtfile in archive.namelist():
key = txtfile[0:-4]
contents = archive.read(txtfile).decode('ascii')
if delim in contents:
next_key = contents.split(delim)[1]
else:
next_key = None
linked_list[key] = [next_key, contents]
return linked_list
if __name__ == '__main__':
pcutils.try_page('def/', 'channel', caption='Challenge page')
print()
# there is a download for channel.zip
# manually put in the project directory
archive = get_zip_archive()
print()
linked_list = create_linked_list()
print(f'Linked list:')
key = '90052'
while key is not None:
next_key, message = linked_list[key]
if ch == 'y':
return 'a'
if ch == 'z':
return 'b'
return chr(ord(ch) + 2)
def shift_all(sentences):
return [
''.join(shift2(ch) if 'a' <= ch <= 'z' else ch for ch in sentence)
for sentence in sentences
]
if __name__ == '__main__':
pcutils.try_page('def/', 'map', caption='Challenge page')
print()
encoded = pcutils.get_string_from_page('def/',
'map',
start='<font color="#f000f0">',
end='</tr></td>')
pcutils.print_lines(encoded.split('. '), 'Message to decode')
pcutils.print_lines(''.join(shift_all(encoded)).split('. '),
'Decoded message')
page = ''.join(shift2(ch) for ch in 'map')
print(f'map shifted: {page}')
pcutils.try_page('def/', page, '.html', caption='Next challenge page')
def get_answer():
n = '1'
answers = [n]
for i in range(1, 31):
answers.append(look_and_say(answers[i - 1]))
print(f'Look and say lengths:')
for i, n in enumerate(answers):
print(f' n = {i} -- length = {len(n)}')
print()
return str(len(answers[30]))
if __name__ == '__main__':
pcutils.try_page('return/', 'bull',
un=UN, pw=PW,
caption='Next challenge page')
print()
page = 'sequence'
pcutils.try_page('return/', page, ending='.txt',
un=UN, pw=PW,
caption='Clue')
message = pcutils.get_string_from_page(
'return/', page, ending='.txt',
un=UN, pw=PW)
print(f'Message: {message}')
pcutils.try_page('return/', get_answer(),
un=UN, pw=PW,
caption='Next challenge page')
print(f'image shape: height={height}, width={width}, channels={channels}')
print()
print(f'Gray bar pixels (line 43):')
result = ''
for x in range(1, 604, 7):
(b, g, r) = page_image[43, x]
print(f'(b, g, r) pixel at x={x}: ({b}, {g}, {r})')
result += chr(b)
print()
return result
def get_message(s):
lines = s.split('. ')
pcutils.print_lines(lines, 'Message from the bar')
print()
message = list(map(int, lines[1].split('[')[1][0:-1].split(', ')))
return ''.join(map(chr, message))
if __name__ == '__main__':
pcutils.try_page('def/', 'oxygen', caption='Challenge page')
answer = get_message(get_gray_bar('oxygen'))
pcutils.try_page('def/', answer, caption='Next challenge page')
os.remove('oxygen.png')
'raw_unicode_escape')
pw_bytes = un_pw[1][5:-1].decode('unicode_escape').encode(
'raw_unicode_escape')
un = bz2.decompress(un_bytes).decode('ascii')
pw = bz2.decompress(pw_bytes).decode('ascii')
return un, pw
if __name__ == '__main__':
# pcutils.try_page('def/', 'integrity',
# caption='Challenge page')
# from url text
next_page = 'good'
print(f'Next challenge page is ...return/{next_page}.html.')
print(f' It needs a username / password.')
print()
un, pw = get_auth()
print(f'Username: {un}')
print(f'Password: {pw}')
print()
pcutils.try_page('return/',
next_page,
un=un,
pw=pw,
caption='Next challenge page')
import os
def create_pickle_info():
pickle_data = pcutils.get_bytes_from_page('def/', 'banner', '.p')
outfile = open('pickle.dat', 'wb')
outfile.write(pickle_data)
outfile.close()
infile = open('pickle.dat', 'rb')
pickle_table = pickle.load(infile)
infile.close()
os.remove('pickle.dat')
return pickle_table
if __name__ == '__main__':
pcutils.try_page('def/', 'peak', caption='Challenge page')
print()
pickle_table = create_pickle_info()
pcutils.print_lines(pickle_table, 'Pickle table')
print()
print(f'Printing banner...')
for line in pickle_table:
print(''.join(ch * w for ch, w in line))
pcutils.try_page('def/', 'channel', caption='Next challenge page')
10 + max([y for x, y in dots1] + [y for x, y in dots2]),
10 + max([x for x, y in dots1] + [x for x, y in dots2]))
for i in range(1, len(dots1)):
pt1, pt2 = dots1[i - 1], dots1[i]
cv2.line(canvas, pt1, pt2, pcutils.BLACK)
for i in range(1, len(dots2)):
pt1, pt2 = dots2[i - 1], dots2[i]
cv2.line(canvas, pt1, pt2, pcutils.RED)
cv2.imshow('Looks like a cow: ', canvas)
cv2.waitKey(0)
if __name__ == '__main__':
pcutils.try_page('return/', 'good', un=UN, pw=PW, caption='Challenge page')
print()
connect_the_dots(get_dots(1, 'first:', 'second:'),
get_dots(2, 'second:', '-->'))
print()
pcutils.try_page('return/', 'cow', un=UN, pw=PW, caption='Cow page')
message = pcutils.get_string_from_page('return/', 'cow', un=UN, pw=PW)
print(f'Message: {message}')
pcutils.try_page('return/',
'bull',
un=UN,
pw=PW,
caption='Next challenge page')
'''
the python challenge 3
'''
import pcutils
import re
if __name__ == '__main__':
pcutils.try_page('def/', 'equality', caption='Challenge page')
print()
mess_below = pcutils.get_string_from_page('def/',
'equality',
start='<!--',
end='-->')
pcutils.print_lines(
mess_below.split(pcutils.NEWLINE)[0:10], 'Mess below from web page')
print('...')
print()
pattern = '[a-z]{1}[A-Z]{3}[a-z]{1}[A-Z]{3}[a-z]{1}'
matches = re.findall(pattern, mess_below)
pcutils.print_lines(matches, 'Matches')
print()
page = ''.join(s[4] for s in matches)
pcutils.try_page('def/', page, caption='Trying page in url...')
message = pcutils.get_string_from_page(
'def/',
'''
the python challenge 0
'''
import pcutils
if __name__ == '__main__':
pcutils.try_page('def/', '0', '.html',
caption='Warm up page')
print()
page = str(pow(2, 38))
pcutils.try_page('def/', page, '.html',
caption='New Challenge page')
'''
the python challenge 2
'''
import pcutils
import collections
if __name__ == '__main__':
pcutils.try_page('def/', 'ocr', caption='Challenge page')
print()
s = pcutils.get_string_from_page(
'def/',
'ocr',
start='<!--',
end='-->',
)
mess_below = s[s.index('%'):]
pcutils.print_lines(
mess_below.split(pcutils.NEWLINE)[0:10], 'Mess below from web page')
print('...')
print()
frequencies = collections.defaultdict(lambda: 0)
for ch in mess_below:
if ch.isalnum():
frequencies[ch] += 1
pcutils.print_lines(frequencies.items(),
'Frequencies of characters in mess')