

def _log(translator, expr):
    op = expr.op()
    (arg, base) = op.args
    arg_formatted = translator.translate(arg)
    if (base is None):
        return 'ln({0})'.format(arg_formatted)
    else:
        return 'log({0}, {1})'.format(arg_formatted, translator.translate(base))

dataset/ETHPy150Open cloudera/ibis/ibis/impala/compiler.py _log/original