Use True/False instead of 1/0
diff --git a/Lib/fontTools/ttLib/__init__.py b/Lib/fontTools/ttLib/__init__.py
index 93e0c90..5005cd4 100644
--- a/Lib/fontTools/ttLib/__init__.py
+++ b/Lib/fontTools/ttLib/__init__.py
@@ -71,7 +71,7 @@
 	def __init__(self, file=None, res_name_or_index=None,
 			sfntVersion="\000\001\000\000", flavor=None, checkChecksums=0,
 			verbose=0, recalcBBoxes=1, allowVID=0, ignoreDecompileErrors=False,
-			fontNumber=-1, quiet=0):
+			fontNumber=-1, quiet=False):
 		
 		"""The constructor can be called with a few different arguments.
 		When reading a font from disk, 'file' should be either a pathname
@@ -216,8 +216,8 @@
 		if closeStream:
 			file.close()
 	
-	def saveXML(self, fileOrPath, progress=None, quiet=None, 
-			tables=None, skipTables=None, splitTables=0, disassembleInstructions=1,
+	def saveXML(self, fileOrPath, progress=None, quiet=False,
+			tables=None, skipTables=None, splitTables=False, disassembleInstructions=True,
 			bitmapGlyphDataFormat='raw'):
 		"""Export the font as TTX (an XML-based text file), or as a series of text
 		files when splitTables is true. In the latter case, the 'fileOrPath'
@@ -314,7 +314,7 @@
 		writer.newline()
 		writer.newline()
 	
-	def importXML(self, file, progress=None, quiet=None):
+	def importXML(self, file, progress=None, quiet=False):
 		"""Import a TTX file (an XML-based text format), so as to recreate
 		a font object.
 		"""
diff --git a/Lib/fontTools/ttLib/xmlImport.py b/Lib/fontTools/ttLib/xmlImport.py
index f53fb1b..f4d9915 100644
--- a/Lib/fontTools/ttLib/xmlImport.py
+++ b/Lib/fontTools/ttLib/xmlImport.py
@@ -11,7 +11,7 @@
 
 class ExpatParser:
 	
-	def __init__(self, ttFont, fileName, progress=None, quiet=None):
+	def __init__(self, ttFont, fileName, progress=None, quiet=False):
 		self.ttFont = ttFont
 		self.fileName = fileName
 		self.progress = progress
@@ -125,7 +125,7 @@
 		print text
 
 
-def importXML(ttFont, fileName, progress=None, quiet=None):
+def importXML(ttFont, fileName, progress=None, quiet=True):
 	"""Import a TTX file (an XML-based text format), so as to recreate
 	a font object.
 	"""
diff --git a/Lib/fontTools/ttx.py b/Lib/fontTools/ttx.py
index aa5655e..0efa0c0 100644
--- a/Lib/fontTools/ttx.py
+++ b/Lib/fontTools/ttx.py
@@ -100,16 +100,16 @@
 
 class Options:
 
-	listTables = 0
+	listTables = False
 	outputDir = None
 	outputFile = None
-	verbose = 0
-	quiet = 0
-	splitTables = 0
-	disassembleInstructions = 1
+	verbose = False
+	quiet = False
+	splitTables = False
+	disassembleInstructions = True
 	mergeFile = None
-	recalcBBoxes = 1
-	allowVID = 0
+	recalcBBoxes = True
+	allowVID = False
 	ignoreDecompileErrors = True
 	bitmapGlyphDataFormat = 'raw'
 
@@ -130,20 +130,20 @@
 			elif option == "-o":
 				self.outputFile = value
 			elif option == "-v":
-				self.verbose = 1
+				self.verbose = True
 			elif option == "-q":
-				self.quiet = 1
+				self.quiet = True
 			# dump options
 			elif option == "-l":
-				self.listTables = 1
+				self.listTables = True
 			elif option == "-t":
 				self.onlyTables.append(value)
 			elif option == "-x":
 				self.skipTables.append(value)
 			elif option == "-s":
-				self.splitTables = 1
+				self.splitTables = True
 			elif option == "-i":
-				self.disassembleInstructions = 0
+				self.disassembleInstructions = False
 			elif option == "-z":
 				validOptions = ('raw', 'row', 'bitwise', 'extfile')
 				if value not in validOptions:
@@ -156,9 +156,9 @@
 			elif option == "-m":
 				self.mergeFile = value
 			elif option == "-b":
-				self.recalcBBoxes = 0
+				self.recalcBBoxes = False
 			elif option == "-a":
-				self.allowVID = 1
+				self.allowVID = True
 			elif option == "-e":
 				self.ignoreDecompileErrors = False
 		if self.onlyTables and self.skipTables:
@@ -198,9 +198,9 @@
 			ignoreDecompileErrors=options.ignoreDecompileErrors,
 			fontNumber=options.fontNumber)
 	ttf.saveXML(output,
-			quiet=options.quiet, 
+			quiet=options.quiet,
 			tables=options.onlyTables,
-			skipTables=options.skipTables, 
+			skipTables=options.skipTables,
 			splitTables=options.splitTables,
 			disassembleInstructions=options.disassembleInstructions,
 			bitmapGlyphDataFormat=options.bitmapGlyphDataFormat)