codecs_open_read_ERRORS.py

#1/usr/bin/env python

# this is from The Python
# Standard Library by example
# ISBN13: 9780321767349

import codecs
import sys

encoding = sys.argv[1]
filename = encoding + '.txt'

print 'Reading from', filename
with codecs.open(filename, mode='rt', encoding=encoding) as f:
    print repr(f.read())

""" Errors

$ python codecs_open_read.py utf-8
Reading from utf-8.txt
u'pi: \u03c0'

$ python codecs_open_read.py utf-16
Reading from utf-16.txt
Traceback (most recent call last):
  File "codecs_open_read.py", line 14, in <module>
    with codecs.open(filename, mode='rt', encoding=encoding) as f:
  File "/usr/lib/python2.7/codecs.py", line 881, in open
    file = __builtin__.open(filename, mode, buffering)
IOError: [Errno 2] No such file or directory: 'utf-16.txt'

$ python codecs_open_read.py utf-32
Reading from utf-32.txt
Traceback (most recent call last):
  File "codecs_open_read.py", line 14, in <module>
    with codecs.open(filename, mode='rt', encoding=encoding) as f:
  File "/usr/lib/python2.7/codecs.py", line 881, in open
    file = __builtin__.open(filename, mode, buffering)
IOError: [Errno 2] No such file or directory: 'utf-32.txt'

"""