python - Creating Period for Multi Quarter Timespan in Pandas -

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many companies release quarterly financial data maps nicely pandas period:

p = period('2012q1', freq='q-dec')

which in filings labeled "three months ended march 31, 2012".

however financial data released in form: "nine months ended september 30, 2005". how create period object "nine months ended september 30, 2005"?

another way of expressing period "2005(q1-q3)".

i asked: extract quarterly data multi quarter periods


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