> > The amazing thing is when file_str = 'C:\Qt\SimLCM\Default > \Data_Input_Material.txt', > the first if statement if fulfilled, that seemingly says that in this > file_str, python actually finds the word 'Geometry'. > I know this, because the line: 'I found geometry' is printed. However, > if instead of using file_str.find(), I use file_str.endswith(), it > does not exhibit this strange behaviour. > > The problem is str.find returns -1 on failure; and -1 is a true value. Only 0, empty string, empty sequences, etc, are false values.
So, you have to test, 'if find_str.find(pattern) != -1:' HTH, --S
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