commit 1e899cdeaaef273d461b52cec04b554ef8c451b9
author Guido van Rossum <guido@python.org> Mon Jan 04 21:19:09 1999 +0000
committer Guido van Rossum <guido@python.org> Mon Jan 04 21:19:09 1999 +0000
tree 43d7eba7ec3ab1e67f1b72e1f5607bad8be977f0
parent 4eac47cf5032403e0ce24fe3e006cdb61f6b7bc8

Hm.  There was a boundary condition error at the end of the file too.

Tools/idle/FormatParagraph.py

diff --git a/Tools/idle/FormatParagraph.py b/Tools/idle/FormatParagraph.py
index cc1b36a..1d0db12 100644
--- a/Tools/idle/FormatParagraph.py
+++ b/Tools/idle/FormatParagraph.py
@@ -46,7 +46,7 @@
 def find_paragraph(text, mark):
     lineno, col = map(int, string.split(mark, "."))
     line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
-    while is_all_white(line):
+    while text.compare("%d.0" % lineno, "<", "end") and is_all_white(line):
         lineno = lineno + 1
         line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
     first_lineno = lineno