regex - Remove characters from python output -

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i have written python code print recommended product id's having product id of product. getting output as:- 

  ['503821321','503821331','504821322','503821343']

i want output as:-

   503821321, 503821331, 504821322, 503821343

what should do? in advance.

in [77]: ', '.join(['503821321','503821331','504821322','503821343']) out[77]: '503821321, 503821331, 504821322, 503821343'  in [78]: print(', '.join(['503821321','503821331','504821322','503821343'])) 503821321, 503821331, 504821322, 503821343

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