Unable to print Unicode characters in Python 3 on Windows

[giampaolo]

BPO	5081
Nosy	@loewis, @giampaolo

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2009-01-27.18:13:00.622>
created_at = <Date 2009-01-27.12:51:55.941>
labels = ['type-crash']
title = 'Unable to print Unicode characters in Python 3 on Windows'
updated_at = <Date 2009-01-27.18:13:00.604>
user = 'https://github.com/giampaolo'

bugs.python.org fields:

activity = <Date 2009-01-27.18:13:00.604>
actor = 'loewis'
assignee = 'none'
closed = True
closed_date = <Date 2009-01-27.18:13:00.622>
closer = 'loewis'
components = ['None']
creation = <Date 2009-01-27.12:51:55.941>
creator = 'giampaolo.rodola'
dependencies = []
files = []
hgrepos = []
issue_num = 5081
keywords = []
message_count = 2.0
messages = ['80650', '80665']
nosy_count = 2.0
nosy_names = ['loewis', 'giampaolo.rodola']
pr_nums = []
priority = 'normal'
resolution = 'works for me'
stage = None
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue5081'
versions = ['Python 3.0', 'Python 3.1']

[giampaolo]

While trying to port pyftpdlib to Python 3.x I noticed that Python 3.0
has a serious issue since unable to print certain unicode characters on
stdout:

Python 3.0 (r30:67507, Dec  3 2008, 20:14:27) [MSC v.1500 32 bit
(Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> print('\u20ac')  # euro sign
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\python30\lib\io.py", line 1491, in write
    b = encoder.encode(s)
  File "C:\python30\lib\encodings\cp850.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_map)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u20ac' in
position
0: character maps to <undefined>
>>>

Note that the same thing works on Python 2.6

Python 2.6.1 (r261:67517, Dec  4 2008, 16:51:00) [MSC v.1500 32 bit
(Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> print unicode('\u20ac')
\u20ac

This same thing is also discussed on python ml:
http://groups.google.it/group/comp.lang.python/browse_thread/thread/fb42765fe7476fc9/f560b4eaf2b0e3f4?hl=it&pli=1

[loewis]

Your 2.6 example is incorrect. Try

py> print u'\u20ac'

If you want the 3.0 equivalent of your 2.6 code: it is

py> print(r'\u20ac')
\u20ac

Closing this as "works for me".