=================== Expanding templates =================== `PEP 292`_ defines a simplified string template, where substitution variables are identified by a leading ``$``-sign. The substitution dictionary names the keys and values that should be interpolated into the template:: >>> key_1 = 'key_1' >>> key_2 = 'key_2' >>> from flufl.i18n import expand >>> # This may fail for Python < 2.6.5 >>> print(expand( ... '$key_2 is different than $key_1', { ... key_1: 'the first key', ... key_2: 'the second key', ... })) the second key is different than the first key See `issue 4978`_ for Python 2.6.x compatibility. .. _`PEP 292`: http://www.python.org/dev/peps/pep-0292/ .. _`issue 4978`: http://bugs.python.org/issue4978