Changes between Version 22 and Version 23 of SplitSettings


Ignore:
Timestamp:
02/02/12 05:07:37 (3 years ago)
Author:
fox@…
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • SplitSettings

    v22 v23  
    604604
    605605This does however have the drawback of {{{settings.py}}} being parsed twice but that shouldn't cause any sort of mention worthy performance loss.
     606
     607
     608== fox's method ==
     609First write a config file with passwords ad secret keys. Save it somewhere.
     610This is the external_config.py
     611{{{
     612#!python
     613from ConfigParser import ConfigParser, NoOptionError
     614
     615class ExternalConfig(object):
     616    """
     617    Wrapper for ConfigParser
     618    Reads a section from a config file and provides an object with the
     619    properties and the values defined in the config.
     620    """
     621    def __init__(self, conf_file, section):
     622        """
     623        Reads the section "section" from the config "conf_file"
     624        """
     625        self._conf_file = conf_file
     626        self._section = section
     627
     628        self._config = ConfigParser()
     629        self._config.read(self._conf_file)
     630
     631        self._index = len(self._config.options(self._section))
     632
     633    def __getattr__(self, name):
     634        """
     635        Read the property from the config
     636        """
     637        if name.startswith('_'):
     638            return self.__dict__[name]
     639        try:
     640            value = self._config.get(self._section, name)
     641            if value.isdigit():
     642                return int(value)
     643            elif value in ('True', 'False'):
     644                return value == 'True'
     645            else:
     646                return value
     647        except NoOptionError:
     648            raise AttributeError
     649
     650    def __getitem__(self, name):
     651        """
     652        Read the property from the config
     653        """
     654        return self.__getattr__(name)
     655
     656    def __iter__(self):
     657        """
     658        __iter__ method
     659        """
     660        return self
     661
     662    def next(self):
     663        """
     664        next method
     665        """
     666        if self._index == 0:
     667            raise StopIteration
     668        self._index -= 1
     669        return self._config.options(self._section)[self._index]
     670}}}
     671
     672This is production_settings.py
     673{{{
     674#!python
     675from external_config import ExternalConfig
     676import sys
     677
     678_filename = ""  # add your config file
     679_section = "mysection"  # add your config section
     680_this_module = sys.modules[__name__]
     681_config = ExternalConfig(_filename, _section)
     682
     683__all__ = []
     684
     685for key in _config:
     686    __all__.append(key)
     687    value = _config[key]
     688    setattr(_this_module, key, value)
     689
     690}}}
     691
     692Now importig * from production_settings.py will import data from the config file
Back to Top