SystemError: com_backpatch: offset too large

[alban.minassian at wanadoo.fr]

> It might help if we had some idea what the code looked like around line 
> 5139, and if we knew the size of the data concerned, for example.

Line 5138 : var += "AAA"+"XXXXXX"+"BBB"  # <----- OK 
Line 5139 : var += "AAA"+"XXXXXX"+"BBB" # <---- !!! --->
com_backpatch: offset too large

If i replace, line 5139, by 'print 'hello python' : --->
com_backpatch: offset too large

len(var)--> 583


Alban