I'm using biopython to do my project, I would like to know if the qblast function would have any parameters to show a minimum of identity between the sequences?
qblast through biopython is no different to standard qblast. It will support all the normal arguments, so you can use flags like -perc_id to set identity cutoffs for your results.
If you take a look at the documentation, you'll see all the options that are supported:
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