Error: unsupported locale setting

[rijeshpk@…]

How to Reproduce

While doing a GET operation on /browser, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'path': '/'}

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20100101 Firefox/12.0

System Information

Trac	0.12
Genshi	0.6
mod_python	3.2.8
pysqlite	2.6.3
Python	2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)]
setuptools	0.6c5
SQLite	3.3.6
Subversion	1.6.11 (r934486)
jQuery	1.4.2

Enabled Plugins

autocompleteusers	N/A
TracAccountManager	0.3.2

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 513, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 256, in dispatch
    content_type)
  File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 844, in render_template
    stream.render(method, doctype=doctype, out=buffer)
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 183, in render
    return encode(generator, method=method, encoding=encoding, out=out)
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 58, in encode
    for chunk in iterator:
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 339, in __call__
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 826, in __call__
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 670, in __call__
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 771, in __call__
    for kind, data, pos in chain(stream, [(None, None, None)]):
  File "/usr/lib/python2.4/site-packages/genshi/output.py", line 586, in __call__
    for ev in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 945, in _strip_accesskeys
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 934, in _generate
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 605, in _include
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/template/markup.py", line 378, in _match
    ctxt, start=idx + 1, **vars):
  File "/usr/lib/python2.4/site-packages/genshi/template/markup.py", line 378, in _match
    ctxt, start=idx + 1, **vars):
  File "/usr/lib/python2.4/site-packages/genshi/template/markup.py", line 327, in _match
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 545, in _flatten
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/path.py", line 588, in _generate
    subevent = next()
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 605, in _include
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/template/markup.py", line 316, in _strip
    event = next()
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 545, in _flatten
    for kind, data, pos in stream:
  File "/usr/lib/python2.4/site-packages/genshi/core.py", line 288, in _ensure
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/path.py", line 588, in _generate
    subevent = next()
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 605, in _include
    for event in stream:
  File "/usr/lib/python2.4/site-packages/genshi/template/markup.py", line 316, in _strip
    event = next()
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 565, in _flatten
    result = _eval_expr(data, ctxt, vars)
  File "/usr/lib/python2.4/site-packages/genshi/template/base.py", line 277, in _eval_expr
    retval = expr.evaluate(ctxt)
  File "/usr/lib/python2.4/site-packages/genshi/template/eval.py", line 178, in evaluate
    return eval(self.code, _globals, {'__data__': data})
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/templates/dir_entries.html", line 24, in <Expression u"chgset_view and dateinfo(change.date) or '\u2013'">
    ${chgset_view and dateinfo(change.date) or '&ndash;'}
  File "/usr/lib/python2.4/site-packages/trac/timeline/web_ui.py", line 264, in dateinfo
    precision='second')
  File "/usr/lib/python2.4/site-packages/trac/timeline/web_ui.py", line 297, in get_timeline_link
    iso_date = display_date = format_datetime(date, 'iso8601', req.tz)
  File "/usr/lib/python2.4/site-packages/trac/util/datefmt.py", line 150, in format_datetime
    encoding = locale.getpreferredencoding() or sys.getdefaultencoding()
  File "/usr/lib64/python2.4/locale.py", line 417, in getpreferredencoding
    setlocale(LC_CTYPE, "")
  File "/usr/lib64/python2.4/locale.py", line 381, in setlocale
    return _setlocale(category, locale)
Error: unsupported locale setting

[Jun Omae]

It seems an InstallationIssue. Please check LANG environment variable and set a valid locale (e.g. LANG=C, LANG=en_US.UTF8, etc…).

BTW, ​locale.getpreferredencoding is not thread-safe. I don't think that format_datetime() should call it?