Open all files using with blocks

I truly am a modern Python man.

kaylee.py

@@ -73,15 +73,13 @@ class Kaylee:
 
     def create_strings_file(self):
         # Open the strings file
-        strings = open(self.config.strings_file, "w")
-        # Add command words to the corpus
-        for voice_cmd in sorted(self.commands.keys()):
-            strings.write(voice_cmd.strip().replace('%d', '') + "\n")
-        # Add number words to the corpus
-        for word in self.number_parser.number_words:
-            strings.write(word + "\n")
-        # Close the strings file
-        strings.close()
+        with open(self.config.strings_file, 'w') as strings:
+            # Add command words to the corpus
+            for voice_cmd in sorted(self.commands.keys()):
+                strings.write(voice_cmd.strip().replace('%d', '') + "\n")
+            # Add number words to the corpus
+            for word in self.number_parser.number_words:
+                strings.write(word + "\n")
 
     def log_history(self, text):
         if self.options['history']:
@@ -91,11 +89,9 @@ class Kaylee:
                 self.history.pop(0)
 
             # Open and truncate the history file
-            hfile = open(self.config.history_file, "w")
-            for line in self.history:
-                hfile.write(line + "\n")
-            # Close the file
-            hfile.close()
+            with open(self.config.history_file, 'w') as hfile:
+                for line in self.history:
+                    hfile.write(line + '\n')
 
     def run_command(self, cmd):
         """Print the command, then run it"""

languageupdater.py

@@ -47,17 +47,19 @@ class LanguageUpdater:
         host = 'http://www.speech.cs.cmu.edu'
         url = host + '/cgi-bin/tools/lmtool/run'
 
-        # Prepare request
-        files = {'corpus': open(self.config.strings_file, 'rb')}
-        values = {'formtype': 'simple'}
+        # Submit the corpus to the lmtool
+        response_text = ""
+        with open(self.config.strings_file, 'rb') as corpus:
+            files = {'corpus': corpus}
+            values = {'formtype': 'simple'}
 
-        # Send corpus to the server
-        r = requests.post(url, files=files, data=values)
+            r = requests.post(url, files=files, data=values)
+            response_text = r.text
 
         # Parse response to get URLs of the files we need
         path_re = r'.*<title>Index of (.*?)</title>.*'
         number_re = r'.*TAR([0-9]*?)\.tgz.*'
-        for line in r.text.split('\n'):
+        for line in response_text.split('\n'):
             # If we found the directory, keep it and don't break
             if re.search(path_re, line):
                 path = host + re.sub(path_re, r'\1', line)