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import os
import ConfigParser
__config = None
SECTION = "main"
class Error(Exception):
"""Configuration error"""
def __init__(self, value):
self.value = value
self.str = repr(self.value)
def __str__(self):
return self.str
def load(filename):
global __config
conf = ConfigParser.ConfigParser()
conf.read(filename)
if not conf.has_section(SECTION):
raise Error, "invalid or missing config file: %s" % filename
__config = conf
def require(key):
result = option(key)
if not result:
raise Error, "missing conf option '%s' in section '%s'" % (key, SECTION)
return result
def option(key, default = None):
assert __config is not None, "configuration not loaded"
if not __config.has_option(SECTION, key):
return default
return __config.get(SECTION, key)
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