How to display .txt file in textview of glade

[varnikat t]

Hi,
Whenever I try to open a .txt file in textview of glade, it never opens and
throws this error:
GtkWarning: gtk_text_buffer_emit_insert: assertion `g_utf8_validate (text,
len, NULL)' failed

self.text_view.get_buffer().insert(self.text_view.get_buffer().get_end_iter(),
"\n" + file.read())

It opens .py, .html, etc. nicely but doesn't open .txt file.
Can anyone temme what to do in order to display a .txt file?
Do i need to convert .txt file into something else...? there is some UTF-8
encoding problem....i guess.
Please help me.

-- 
Varnika Tewari
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