New submission from João Bernardo:
The configparser.RawConfigParser class implements some `get` methods:
get, getint, getfloat, getboolean
but if any of these get overridden on a subclass(with other arguments) or new
ones are added (e.g. getlist), there's no way a SectionProxy instance will be
able to use them.
class DemoParser(ConfigParser):
def getlist(self, section, option):
return self.get(section, option).split()
parser = DemoParser()
parser.read(some_file)
# These 2 lines should be equivalent, like "getint", but the
# second doesn't work because of the SectionProxy instance
parser.getlist('some_section', 'foo')
parser['some_section'].getlist('foo')
Reading the code, for SectionProxy, it redefines all the get* methods from
RawConfigParser, and that looks pretty bad...
A more elegant approach would be to fetch the function on the parser instance
and bound to the section name with `lambda` or `functools.partial`... Something
like:
class SectionProxy(...):
...
def __getattr__(self, attr):
if not attr.startswith('get'):
raise AttributeError(attr)
fn = getattr(self._parser, attr)
return lambda *args, **kw: fn(self._name, *args, **kw)
----------
components: Library (Lib)
messages: 190767
nosy: JBernardo
priority: normal
severity: normal
status: open
title: ConfigParser getters not available on SectionProxy
type: behavior
versions: Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue18159>
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