Whitespace normalization.
diff --git a/Lib/tty.py b/Lib/tty.py
index 20a31c0..b76a617 100644
--- a/Lib/tty.py
+++ b/Lib/tty.py
@@ -5,7 +5,7 @@
 from TERMIOS import *
 from termios import *
 
-# Indexes for termios list. 
+# Indexes for termios list.
 IFLAG = 0
 OFLAG = 1
 CFLAG = 2
@@ -15,22 +15,21 @@
 CC = 6
 
 def setraw(fd, when=TCSAFLUSH):
-	"""Put terminal into a raw mode."""
-	mode = tcgetattr(fd)
-	mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
-	mode[OFLAG] = mode[OFLAG] & ~(OPOST)
-	mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB)
-	mode[CFLAG] = mode[CFLAG] | CS8
-	mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG)
-	mode[CC][VMIN] = 1
-	mode[CC][VTIME] = 0
-	tcsetattr(fd, when, mode)
+    """Put terminal into a raw mode."""
+    mode = tcgetattr(fd)
+    mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
+    mode[OFLAG] = mode[OFLAG] & ~(OPOST)
+    mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB)
+    mode[CFLAG] = mode[CFLAG] | CS8
+    mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG)
+    mode[CC][VMIN] = 1
+    mode[CC][VTIME] = 0
+    tcsetattr(fd, when, mode)
 
 def setcbreak(fd, when=TCSAFLUSH):
-	"""Put terminal into a cbreak mode."""
-	mode = tcgetattr(fd)
-	mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON)
-	mode[CC][VMIN] = 1
-	mode[CC][VTIME] = 0
-	tcsetattr(fd, when, mode)
-
+    """Put terminal into a cbreak mode."""
+    mode = tcgetattr(fd)
+    mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON)
+    mode[CC][VMIN] = 1
+    mode[CC][VTIME] = 0
+    tcsetattr(fd, when, mode)