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r r r< r? rA r �_nframeswritten� _datawritten� _datalength�_headerwrittenr: r r r r% 9 s zWave_write.initfpc C s | � � d S r0 r1 r2 r r r r3 E s zWave_write.__del__c C s | S r0 r r2 r r r r4 H s zWave_write.__enter__c G s | � � d S r0 r1 r5 r r r r7 K s zWave_write.__exit__c C s( | j rtd��|dk r td��|| _d S )N�0cannot change parameters after starting to writer
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