Python 2.8 Rationale

python28.py

# Solve problem of Python 2.7 defaults
# 1. switch internal Python 2 encoging from internal ASCII to Unicode
# (this fixes interoperability of Jinja2 with tools that use binary
#  utf-8 for passing strings instead of Unicode, e.g. Roundup)
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
# 2. do not fail on printing stuff to stdout/stderr, but escape it
# (removes negative emotions trying to debug binary strings with print)
import codecs
if sys.stdout.isatty():
    # ^ otherwise sys.stdout.encoding will not be set
    sys.stdout = codecs.getwriter(sys.stdout.encoding)(sys.stdout, 'backslashreplace')
else:
    # piped or redirected
    if sys.platform == "win32":
        # reopen stdout as binary stream to avoid corruption of \n to \r\n
        import os, msvcrt
        msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)

if sys.stderr.isatty():
    sys.stderr = codecs.getwriter(sys.stderr.encoding)(sys.stdout, 'backslashreplace')
else:
    if sys.platform == "win32":
        import os, msvcrt
        msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)