Add __all__ to pens that didn't have it

Lib/fontTools/pens/areaPen.py

@@ -5,6 +5,9 @@ from fontTools.misc.py23 import *
 from fontTools.pens.basePen import BasePen
 
 
+__all__ = ["AreaPen"]
+
+
 class AreaPen(BasePen):
 
 	def __init__(self, glyphset=None):

Lib/fontTools/pens/momentsPen.py

@@ -2,6 +2,10 @@ from __future__ import print_function, division, absolute_import
 from fontTools.misc.py23 import *
 from fontTools.pens.basePen import BasePen
 
+
+__all__ = ["MomentsPen"]
+
+
 class MomentsPen(BasePen):
 
 	def __init__(self, glyphset=None):

Lib/fontTools/pens/perimeterPen.py

@@ -8,6 +8,9 @@ from fontTools.misc.bezierTools import splitQuadraticAtT, splitCubicAtT
 import math
 
 
+__all__ = ["PerimeterPen"]
+
+
 def _distance(p0, p1):
 	return math.hypot(p0[0] - p1[0], p0[1] - p1[1])
 def _dot(v1, v2):

Lib/fontTools/pens/reportLabPen.py

@@ -4,6 +4,9 @@ from fontTools.pens.basePen import BasePen
 from reportlab.graphics.shapes import Path
 
 
+__all__ = ["ReportLabPen"]
+
+
 class ReportLabPen(BasePen):
 
 	"""A pen for drawing onto a reportlab.graphics.shapes.Path object."""

Lib/fontTools/pens/statisticsPen.py

@@ -3,6 +3,9 @@ from fontTools.misc.py23 import *
 import math
 from fontTools.pens.momentsPen import MomentsPen
 
+__all__ = ["StatisticsPen"]
+
+
 class StatisticsPen(MomentsPen):
 
 	# Center of mass

Lib/fontTools/pens/t2CharStringPen.py

@@ -1,9 +1,7 @@
 # Copyright (c) 2009 Type Supply LLC
 # Author: Tal Leming
 
-
 from __future__ import print_function, division, absolute_import
-
 from fontTools.misc.py23 import *
 from fontTools.misc.psCharStrings import T2CharString
 from fontTools.pens.basePen import BasePen

Lib/fontTools/pens/ttGlyphPen.py

@@ -1,6 +1,5 @@
 from __future__ import print_function, division, absolute_import
 from fontTools.misc.py23 import *
-
 from array import array
 from fontTools.pens.basePen import AbstractPen
 from fontTools.pens.transformPen import TransformPen