python - Concatenating Boolean to DataFrames sqlQuery str -

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i attempting query weather database building decision trees. in there 14 instances , making new dataframes based on intend subset want query e.g -->

   new_data = data.query("'rainy' in outlook")

will produce new dataframe 5 instances. 

 id                                      d    rainy  mild     high  false   yes  e    rainy  cool   normal  false   yes  f    rainy  cool   normal   true    no  j    rainy  mild   normal  false   yes  n    rainy  mild     high   true    no

to make program more dynamic iterating through datasets parsed headers 

    new_data = data.query("'rainy' in " + column_names[0])

where column_names[0] equal outlook. working fine , issue having when come windy boolean. question how parse boolean string make df query ? @ moment code reads 

      new_data = data.query("'" + false + "' in windy")

but error getting typeerror: cannot concatenate 'str' , 'bool' objects have tried many variations on concatenation have yet find correct format , if else has experienced same problem insight appreciated.

have tried following?

new_data = data.query("'" + str(false) + "' in windy")

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