python - Convert a tuple into a dictionary -

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i've looked on internet , consulted few books can't seem find example illustrates trying do. loathe ask on because feels basic question i've been banging head against wall last few hours here goes:

how turn this:

   item = ((100,may),(160,june),(300,july),(140,august))

into this:

                {                 item:[                     {                         value:100,                         label:'may'                     },                     {                         value:160,                         label:'june'                     },                     {                         value:300,                         label:'july'                     },                     {                         value:140,                         label:'august'                     }                 ]                 } 

{'item': [dict(value=value, label=label) value, label in item]}

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