ch03.py

# challenge 3
# http://www.pythonchallenge.com/
# -----------------------------------------------------------------------------

# Large letters - from 65 to 90
# Small letters - from 97 to 122

def filter_list(map, original) :
	i_line = 0
	for line in map :

		if line.find('100010001') > 0 :
			print original[i_line][line.find('100010001') + 4],

		i_line += 1

def convert_list(source) :
	
	# iterators
	i_line = 0
	i_char = 0

	# Swap area for list changes
	new_line = []
	new_source = []

	for line in source :
		
		# Check if the curent symbol is big letter
		# if 65 <= ord(c) <= 90 :			
		# if 91 <= ord(c) <= 122 :

		new_line = list(line)

		for char in line :

			if 65 <= ord(char) <= 90 : 
				new_line[i_char] = '0'	
			
			if 91 <= ord(char) <= 122 :
				new_line[i_char] = '1'

			i_char = i_char + 1

		# Remove the new line symbol
		new_line.pop()

		# this will be the returned value
		new_source.append(''.join(new_line))


		# Modify counters
		i_line = i_line + 1
		i_char = 0

	return new_source

with open('text.txt') as f:
	content = f.readlines()

new_content = convert_list(content)

filter_list(new_content, content)