Week 3 work from a little while ago

chap8.py

@@ -1,2 +1,22 @@
 # This is where the answers to Chapter 8 questions for the BSS Dev RampUp go
-# Name:
+# Name: Chris Van Schyndel
+
+# Exercise 8.12
+
+def rot_x(astring, rotator):
+	alpha_upper = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+	alpha_lower = 'abcdefghijklmnopqrstuvwxyz'
+	newstring = ''
+	for letter in astring:
+		if letter in alpha_upper:
+			newletter = alpha_upper[(alpha_upper.find(letter) + rotator) % 26]
+			newstring += newletter
+		if letter in alpha_lower:
+			newletter = alpha_lower[(alpha_lower.find(letter) + rotator) % 26]
+			newstring += newletter
+	return newstring
+
+print rot_x('cheer', 7)
+print rot_x('melon', -10)
+
+

chap9.py

@@ -1,2 +1,86 @@
 # This is where the answers to Chapter 9 questions for the BSS Dev RampUp go
-# Name:
+# Name: Chris Van Schyndel
+
+# Exercise 9.1
+
+def greaterthantwenty():
+	fin = open('words.txt')
+	for line in fin:
+		word = line.strip()
+		if len(word) > 20:
+			print word
+
+# Exercise 9.2
+
+def has_no_e(string):
+	for letters in string:
+		if letters == 'e' or letters == 'E':
+			return False
+	return True
+
+
+def words_with_e():
+	fin = open('words.txt')
+	words_with_e = 0
+	words_without_e = 0
+	wordcheck = False
+	for line in fin:
+		word = line.strip()
+		for letters in word:
+			if letters == 'e':
+				wordcheck = True
+		if wordcheck == True:
+			words_with_e += 1
+			wordcheck = False
+		else:
+			print word
+			words_without_e += 1
+	return str(((words_without_e * 100) / words_with_e * 100)/100) + '%' 
+
+# Exercise 9.3
+
+def avoids():
+	print 'Please enter in the Forbidden letters!'
+	astring = raw_input('Forbidden Letters: >')
+	wordcheck = False
+	wordcount = 0
+	fin = open('words.txt')
+	for line in fin:
+		word = line.strip()
+		for letters in word:
+			for forbiddens in astring:
+				if letters == forbiddens:
+					wordcheck = True
+		if wordcheck == True:
+			wordcheck = False
+		else:
+			wordcount +=1
+			print word
+	print wordcount
+
+# Can you find a combination of 5 forbidden letters that excludes the smallest number of words?
+# My guess? 'zyqkj'
+
+
+# Exercise 9.4
+
+def uses_only(aword, astring):
+	# Returns True if the word contains only letters in the list.
+	# It must also contain all the letters from the list.
+	count = 0
+	aword = aword.replace(' ', '')
+	letterchecker = False
+	for bagels in astring:
+		if bagels not in aword:
+			return False
+	for bagels in aword:
+		for cheesecakes in astring:
+			if cheesecakes == bagels:
+				letterchecker = True
+		if letterchecker == False:
+			return False
+		else:
+			letterchecker = False
+	return True
+
+print uses_only('cell of heal', 'acefhlo')