I'm thinking of making this downstream change to Fedora's site.py (and
possibly in future RHEL releases) so that the default encoding
automatically picks up the encoding from the locale:
def setencoding():
"""Set the string encoding used by the Unicode implementation. The
default is 'ascii', but if you're willing to experiment, you can
change this."""
encoding = "ascii" # Default value set by _PyUnicode_Init()
- if 0:
+ if 1:
# Enable to support locale aware default string encodings.
import locale
loc = locale.getdefaultlocale()
if loc[1]:
encoding = loc[1]
if 0:
# Enable to switch off string to Unicode coercion and implicit
# Unicode to string conversion.
encoding = "undefined"
if encoding != "ascii":
# On Non-Unicode builds this will raise an AttributeError...
sys.setdefaultencoding(encoding) # Needs Python Unicode build !
I've written up extensive notes on the change and the history of the
issue here:
https://fedoraproject.org/wiki/Features/PythonEncodingUsesSystemLocale
Please let me know if there are any errors on that page!
The aim is to avoid strange behavior changes when running a script
within a shell pipeline/cronjob as opposed to at a tty (and to capture
some of the bizarre cornercases, for example, I found the behavior of
the pango/pygtk modules particularly surprising).
I mention it here as a "heads-up" about the change:
- in case other distributions may want to do the same (or already do
so, though in my very brief survey no-one else seemed to), and
- in case doing so breaks things in a way I'm not expecting; can
anyone see any flaws in my arguments?
- in case other people find my notes on the issue useful
Hope this is helpful; can anyone see any potential problems with this
change?
Dave
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