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r�dndZ%dd� Z&G dd� de'�Z(dS )a Configuration management setup
Some terminology:
- name
As written in config files.
- value
Value associated with a name
- key
Name combined with it's section (section.name)
- variant
A single word describing where the configuration key-value pair came from
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Configurationa� Handles management of configuration.
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��zConfiguration.__init__c C s | � � | js| �� dS )zELoads configuration from configuration files and environment
N)�_load_config_filesr@ �_load_environment_vars�rG r r r �load� s zConfiguration.loadc C s< | j dk std��z| �� d W S tk
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z:env:N)rE r3 r) ro rx �_get_environ_varsrL r r r rK T s �z$Configuration._load_environment_varsc C s. i }|D ] \}}|d t |� }|||< q|S )z�Normalizes items to construct a dictionary with normalized keys.
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