Viewing file:  FtCore.py (1.76 KB) -rw-r--r--
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"""
Contains various definitions common to modules acquired from 4Suite
"""
__all__ = ["FtException", "get_translator"]
class FtException(Exception):
def __init__(self, errorCode, messages, args):
# By defining __str__, args will be available. Otherwise
# the __init__ of Exception sets it to the passed in arguments.
self.params = args
self.errorCode = errorCode
self.message = messages[errorCode] % args
Exception.__init__(self, self.message, args)
def __str__(self):
return self.message
# What follows is used to provide support for I18N in the rest of the
# 4Suite-derived packages in PyXML.
#
# Each sub-package of the top-level "xml" package that contains 4Suite
# code is really a separate text domain, but they're all called
# '4Suite'. For each domain, a translation object is provided using
# message catalogs stored inside the package. The code below defines
# a get_translator() function that returns an appropriate gettext
# function to be used as _() in the sub-package named by the
# parameter. This handles all the compatibility issues related to
# Python versions (whether the gettext module can be found) and
# whether the message catalogs can actually be found.
def _(msg):
return msg
try:
import gettext
except (ImportError, IOError):
def get_translator(pkg):
return _
else:
import os
_cache = {}
_top = os.path.dirname(os.path.abspath(__file__))
def get_translator(pkg):
if not _cache.has_key(pkg):
locale_dir = os.path.join(_top, pkg.replace(".", os.sep))
try:
f = gettext.translation('4Suite', locale_dir).gettext
except IOError:
f = _
_cache[pkg] = f
return _cache[pkg]
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