shawnpanda · April 18, 2015 02:14 · Apr 18, 2015
diff --git a/hangman.py b/hangman.py
@@ -0,0 +1,145 @@
+"""
+This program plays a game of hangman.
+Guess letters in the mystery word.
+You can only make 8 incorrect guesses before you lose.
+See if you can guess the word before you run out of guesses...
+
+Author: Xiang (Shawn) Pan
+October 28, 2013
+
+"""
+from random import*
+from string import*
+
+def main():
+  random_word=beginning()
+  length=len(random_word)
+  guess_number=[8]
+  list_dash=intro(length)
+  while_loop(random_word,list_dash,guess_number)
+
+
+
+def beginning():
+  """
+  This function opens the text file and reads a word
+  It has no input value and has two return values
+  It returns the word randomly chosen and its length
+  """
+  word=open("words.txt",'r').readlines()
+  word=word[randrange(len(word))]
+  word=word.strip()
+  return word
+
+def intro(number): 
+  """
+  This function has one input value and one return value
+  It returns the list of dashes with the corresponding length to the word chosen
+
+  """
+  all_dash="- "*number
+  print all_dash
+  print "incorrect guesses left: 8"
+  return all_dash 
+
+
+def test(all_inputs):
+  """
+  This function examines if the user's input is valid.
+  This function has no input value from main function and has one return value.
+  The user will enter the input in this step until the input is valid
+
+  """
+  guess=raw_input("Enter a letter: ")
+  while not guess.isalpha() or not len(guess)==1 or guess in all_inputs:
+    if not guess.isalpha() or not len(guess)==1:
+      print "invalid input"
+    if guess in all_inputs:
+      print "You already guessed '%s' , try again..." % (guess)
+    guess=raw_input("Please reenter a letter: ")
+
+  return guess
+
+
+def check(word,input_user,list_dash,guess_number,list_input):
+  """
+  This function has 5 input values and 3 return values.
+  It examines if the input value is a character in the word and change the list of dash corresponding to it
+
+  """
+  #print word 
+  if input_user in word:
+    print "good guess, %s is in the word." % (input_user)
+    list_dash=yes(word,input_user,list_dash)
+  else:
+    print guess_number[0]
+    number=guess_number[0]-1
+    print "sorry there is no %s in the word." % (input_user)
+    print "incorrect guesses left: %d" % (number)
+    guess_number[0]=number
+    print guess_number
+  return list_dash
+
+
+
+
+def yes(word,guess_user,list_dash):
+  """
+  This function examines which dashes on the list will be replaced by the input character
+  It has 3 input values and 1 return value
+  It returns the list of dashes with characters filled in their corresponding space
+
+  """
+  for n in range(len(word)):
+    if guess_user==word[n]:
+      new_dash=list(list_dash)
+      new_dash[2*n]=guess_user
+      list_dash="".join(new_dash)
+  return list_dash
+
+
+def while_loop(random_word,list_dash,guess_number):
+  """
+  It is a while loop that has 3 input values and has no return value
+
+  """
+  valid=True
+  work=True
+  list_input=""
+  while valid and work:
+    guess=test(list_input)
+    list_input=list_input+guess
+    list_dash=check(random_word,guess,list_dash,guess_number,list_input)
+    print list_dash 
+    valid=check_number(guess_number)
+    work=check_dash(list_dash)
+
+def check_number(guess_number):
+  """
+  This function examines if the user has put input for 8 times.
+  It has 1 input value and one return value
+  """
+
+  if guess_number[0] <1:
+    keep_going=False
+    print "Sorry, you lost."
+  else:
+    keep_going=True
+
+  return keep_going
+
+def check_dash(list_):
+  """
+  This function examines if all the dashes in the list of dashes have been filled by characters.
+  It has one input value and one return value
+  """
+  list_=list(list_)
+  if not "-" in list_:
+    print "You won!!!  Next time I'll win though"
+    valid=False
+  else:
+    valid=True
+  return valid
+
+
+main()
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