Fixed TabError in Py3

PyPDF2/pdf.py

@@ -896,73 +896,64 @@ class PdfFileWriter(object):
 
             pageRef.__setitem__(NameObject('/Contents'), content)
 
-    
     def addURI(self, pagenum, uri, rect, border=None):
-		"""
-		
-		Add an URI from a rectangular area to the specified page.
-		This uses the basic structure of AddLink
+        """
+        Add an URI from a rectangular area to the specified page.
+        This uses the basic structure of AddLink
 
-		:param int pagenum: index of the page on which to place the link.
-		:param int uri: string -- uri of resource to link to.
-		:param rect: :class:`RectangleObject<PyPDF2.generic.RectangleObject>` or array of four
-		integers specifying the clickable rectangular area
-		``[xLL, yLL, xUR, yUR]``, or string in the form ``"[ xLL yLL xUR yUR ]"``.
-		:param border: if provided, an array describing border-drawing
-		properties. See the PDF spec for details. No border will be
-		drawn if this argument is omitted.
-		
-		REMOVED FIT/ZOOM ARG
-		-John Mulligan
+        :param int pagenum: index of the page on which to place the URI action.
+        :param int uri: string -- uri of resource to link to.
+        :param rect: :class:`RectangleObject<PyPDF2.generic.RectangleObject>` or array of four
+            integers specifying the clickable rectangular area
+            ``[xLL, yLL, xUR, yUR]``, or string in the form ``"[ xLL yLL xUR yUR ]"``.
+        :param border: if provided, an array describing border-drawing
+            properties. See the PDF spec for details. No border will be
+            drawn if this argument is omitted.
 
-		"""
+        REMOVED FIT/ZOOM ARG
+        -John Mulligan
+        """
 
-		
-		
-		
-		pageLink = self.getObject(self._pages)['/Kids'][pagenum]
-		pageRef = self.getObject(pageLink)
-		
-		if border is not None:
-			borderArr = [NameObject(n) for n in border[:3]]
-			if len(border) == 4:
-				dashPattern = ArrayObject([NameObject(n) for n in border[3]])
-				borderArr.append(dashPattern)
-		else:
-			borderArr = [NumberObject(2)] * 3
+        pageLink = self.getObject(self._pages)['/Kids'][pagenum]
+        pageRef = self.getObject(pageLink)
 
-		if isString(rect):
-			rect = NameObject(rect)
-		elif isinstance(rect, RectangleObject):
-			pass
-		else:
-			rect = RectangleObject(rect)
+        if border is not None:
+            borderArr = [NameObject(n) for n in border[:3]]
+            if len(border) == 4:
+                dashPattern = ArrayObject([NameObject(n) for n in border[3]])
+                borderArr.append(dashPattern)
+        else:
+            borderArr = [NumberObject(2)] * 3
 
-		lnk2 = DictionaryObject()
+        if isString(rect):
+            rect = NameObject(rect)
+        elif isinstance(rect, RectangleObject):
+            pass
+        else:
+            rect = RectangleObject(rect)
 
-		lnk2.update({
-		NameObject('/S'): NameObject('/URI'),
-		NameObject('/URI'): TextStringObject(uri)
-		});
-		lnk = DictionaryObject()
-		lnk.update({
-		NameObject('/Type'): NameObject('/Annot'),
-		NameObject('/Subtype'): NameObject('/Link'),
-		NameObject('/P'): pageLink,
-		NameObject('/Rect'): rect,
-		NameObject('/H'): NameObject('/I'),
-		NameObject('/Border'): ArrayObject(borderArr),
-		NameObject('/A'): lnk2
-		})
-		lnkRef = self._addObject(lnk)
+        lnk2 = DictionaryObject()
+        lnk2.update({
+        NameObject('/S'): NameObject('/URI'),
+        NameObject('/URI'): TextStringObject(uri)
+        });
+        lnk = DictionaryObject()
+        lnk.update({
+        NameObject('/Type'): NameObject('/Annot'),
+        NameObject('/Subtype'): NameObject('/Link'),
+        NameObject('/P'): pageLink,
+        NameObject('/Rect'): rect,
+        NameObject('/H'): NameObject('/I'),
+        NameObject('/Border'): ArrayObject(borderArr),
+        NameObject('/A'): lnk2
+        })
+        lnkRef = self._addObject(lnk)
 
-		if "/Annots" in pageRef:
-			pageRef['/Annots'].append(lnkRef)
-		else:
-			pageRef[NameObject('/Annots')] = ArrayObject([lnkRef])
+        if "/Annots" in pageRef:
+            pageRef['/Annots'].append(lnkRef)
+        else:
+            pageRef[NameObject('/Annots')] = ArrayObject([lnkRef])
 
-    _valid_layouts = ['/NoLayout', '/SinglePage', '/OneColumn', '/TwoColumnLeft', '/TwoColumnRight', '/TwoPageLeft', '/TwoPageRight']
-    
     def addLink(self, pagenum, pagedest, rect, border=None, fit='/Fit', *args):
         """
         Add an internal link from a rectangular area to the specified page.