[IronPython] Weird issue with codecs.BOM_UTF8

[Leonides Saguisag]

Hi everyone,

I am encountering a weird issue with getting to codecs.BOM_UTF8 to work correctly.  I am using SharpDevelop 3.1.

Here is the test script that I put together:


import sys
sys.path.append(r'D:\Python25\Lib')
import codecs

print sys.version
myfile = open(r'D:\Temp\text_file_with_utf8_bom.txt', 'r')
lines = myfile.readlines()
myfile.close()
if lines[0].startswith(codecs.BOM_UTF8):
	print ('UTF-8 BOM detected!')
else:
	print ('UTF-8 BOM not detected!')

myfile = open(r'D:\Temp\text_file_without_utf8_bom.txt', 'r')
lines = myfile.readlines()
myfile.close()
if lines[0].startswith(codecs.BOM_UTF8):
	print ('UTF-8 BOM detected!')
else:
	print ('UTF-8 BOM not detected!')


If I run the executable that I get from SharpDevelop this is what I get:
bin\Debug> Test.exe
2.5.0 ()
UTF-8 BOM detected!
UTF-8 BOM detected!


But if I run the same script using the standard python interpreter, this is what I get:
bin\Debug> D:\Python25\python.exe ..\..\Program.py
2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)]
UTF-8 BOM detected!
UTF-8 BOM not detected!


The script works correctly with the standard python interpreter but for some reason is not working right with IronPython.

Any ideas what is going wrong?

Thanks!

Best regards,
-- Leo