diff --git a/Wifite.py b/Wifite.py
index c9cf2e9..49f6a83 100755
--- a/Wifite.py
+++ b/Wifite.py
@@ -45,9 +45,8 @@ class Wifite(object):
         if not os.path.exists(name):
             Color.pl('{!} {O}file {C}%s{O} not found{W}' % name)
             return
-        f = open(name, 'r')
-        json = loads(f.read())
-        f.close()
+        with open(name, 'r') as fid:
+            json = loads(fid.read())
         for (index, item) in enumerate(json):
             Color.pl('\n{+} Cracked target #%d:' % (index + 1))
             cr = CrackResult.load(item)
diff --git a/py/Aircrack.py b/py/Aircrack.py
index aedcca9..f4b78c8 100644
--- a/py/Aircrack.py
+++ b/py/Aircrack.py
@@ -39,10 +39,8 @@ class Aircrack(object):
     def get_key_hex_ascii(self):
         if not self.is_cracked():
             raise Exception('Cracked file not found')
-        f = open(self.cracked_file, 'r')
-        hex_raw = f.read()
-        f.close()
-
+        with open(self.cracked_file, 'r') as fid:
+            hex_raw = fid.read()
         hex_key = ''
         ascii_key = ''
         while len(hex_raw) > 0:
diff --git a/py/Aireplay.py b/py/Aireplay.py
index 5249254..7ad8d2f 100644
--- a/py/Aireplay.py
+++ b/py/Aireplay.py
@@ -96,14 +96,11 @@ class Aireplay(Thread):
         while self.pid.poll() is None:
             time.sleep(0.1)
             if not os.path.exists(self.output_file): continue
-            # Read output file
-            f = open(self.output_file, "r")
-            lines = f.read()
-            f.close()
-            # Clear output file
-            f = open(self.output_file, "w")
-            f.write("")
-            f.close()
+            # Read output file & clear output file
+            with open(self.output_file, "r+") as fid:
+                lines = fid.read()
+                fid.seek(0)
+                fid.truncate()
             for line in lines.split("\n"):
                 line = line.replace("\r", "").strip()
                 if line == "": continue
diff --git a/py/AttackWPA.py b/py/AttackWPA.py
index fbbae6f..114b64d 100644
--- a/py/AttackWPA.py
+++ b/py/AttackWPA.py
@@ -189,9 +189,8 @@ class AttackWPA(Attack):
         Color.pl("")
         # Check crack result
         if os.path.exists(key_file):
-            f = open(key_file, "r")
-            key = f.read().strip()
-            f.close()
+            with open(key_file, "r") as fid:
+                key = fid.read().strip()
             os.remove(key_file)
 
             Color.pl("{+} {G}Cracked WPA Handshake{W} PSK: {G}%s{W}\n" % key)
diff --git a/py/CrackResult.py b/py/CrackResult.py
index 5a80d6d..0e8768c 100644
--- a/py/CrackResult.py
+++ b/py/CrackResult.py
@@ -27,17 +27,15 @@ class CrackResult(object):
         name = CrackResult.cracked_file
         json = []
         if os.path.exists(name):
-            f = open(name, 'r')
-            text = f.read()
-            f.close()
+            with open(name, 'r') as fid:
+                text = fid.read()
             try:
                 json = loads(text)
             except Exception, e:
                 Color.pl('{!} error while loading %s: %s' % (name, str(e)))
         json.append(self.to_dict())
-        f = open(name, 'w')
-        f.write(dumps(json, indent=2))
-        f.close()
+        with open(name, 'w') as fid:
+            fid.write(dumps(json, indent=2))
         Color.pl('{+} saved crack result to {C}%s{W} ({G}%d total{W})'
             % (name, len(json)))
 
diff --git a/py/Reaver.py b/py/Reaver.py
index 0b40c76..8cbb982 100644
--- a/py/Reaver.py
+++ b/py/Reaver.py
@@ -240,10 +240,8 @@ class Reaver(Attack):
                 out = self.get_stdout()
 
                 # Clear output file
-                f = open(self.stdout_file, 'w')
-                f.write('')
-                f.close()
-
+                with open(self.stdout_file, 'w'):
+                    pass
                 # CHECK FOR CRACK
 
                 (pin, psk, ssid) = Reaver.get_pin_psk_ssid(out)
@@ -394,9 +392,8 @@ class Reaver(Attack):
         ''' Gets output from stdout_file '''
         if not self.stdout_file:
             return ''
-        f = open(self.stdout_file, 'r')
-        stdout = f.read()
-        f.close()
+        with open(self.stdout_file, 'r') as fid:
+            stdout = fid.read()
         return stdout.strip()