Question

I am working with python plugins.I used list to store some values as below:

known_stn.append('1')
known_stn.append('2')

My query is

query=("SELECT survey, station FROM stat WHERE stat.station IN (%s) AND station.survey = '2011410'" %known_stn)

Error occurs for WHERE station.station IN (['1', '2']),as list contains [] brackets.
I tried replacing those brackets but they doesnt get replace.

Is there any other data structure to use?? Or way out to replace square brackets…

Answer 1

You need to format your list as a string before you substitute it into your template string:

"where (%s) blah" % ', '.join(map(str,known_stn))

http://docs.python.org/library/stdtypes.html#str.join

map(str,known_stn) converts the elements themselves to a string, before joining.

Also, heed the warnings about SQL injection.