Pycthon challenges

gistfile1.txt

chal 1 :

chal 2 :



s='g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj.'

a=[ord(x)+2 if x.isalpha() else ord(x) for x in s]
s="".join([chr(x) for x in a])
s.replace('{','a').replace('|','b')


>>> s="http://www.pythonchallenge.com/pc/def/map.html"
>>> a=[(ord(x)+2-ord('a'))%26+ord('a') if x.isalpha() else ord(x) for x in s]
>>> x="".join([chr(x) for x in a])
>>> x
'jvvr://yyy.ravjqpejcnngpig.eqo/re/fgh/ocr.jvon'

http://wiki.pythonchallenge.com/index.php?title=Level1:Main_Page

http://www.pythonchallenge.com/pc/def/ocr.html


chal3:
view-source:http://www.pythonchallenge.com/pc/def/ocr.html
rare=[]
file = open('abc.txt')
for line in file:
	for a in list(line):
		if (ord(a) > 65 and ord(a) <= 90) or (ord(a) >= 97 and ord(a) <= 122):
			rare.append(a)
result = ''.join(rare)

ans
http://www.pythonchallenge.com/pc/def/equality.html


chal4:

def check_left(pos, array):
	 if len([ if ord(x) >= 65 and ord(x) <= 90 for x in array[pos-3:pos]]) == 3 && len([ if ord(x) >= 65 and ord(x) <= 90 for x in array[pos:pos+3]]) == 3:
		

def check_right():
	
result = []
def process_array(array):
	for pos,val in enumerate(pos, array):
		if pos >= 3 and pos < len(array)-3:
			if len([ if ord(x) >= 65 and ord(x) <= 90 for x in array[pos-3:pos]]) == 3 && len([ if ord(x) >= 65 and ord(x) <= 90 for x in array[pos:pos+3]]) == 3:
				result.append(val)
file = open('ip.txt')			
for line in file:
	process_array(list(line))
print result

[A-Z]{3}[a-z][A-Z]{3}

import re
pattern = re.compile('[^A-Z][A-Z]{3}[a-z][A-Z]{3}[^A-Z]')