python - Geopandas PostGIS connection -

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i started using geopandas in python of spatial work , pleased - i'm trying read in postgis features , don't quite understand how parameterize database connection, , didn't seem clear in documentation:

geodataframe.from_postgis(sql, con, geom_col='geom', crs=none, index_col=none, coerce_float=true, params=none)

this simple question, wanted know needs go in 'con' - assume string database connection information? in format? setting 'sql' seems straightforward. appreciated - thanks!

example:

import geopandas gpd  import psycopg2  /*(if postgres/postgis)  con = psycopg2.connect(database="your database", user="user",password="password",host="your host")  sql= "select geom, x,y,z your_table"  df=gpd.geodataframe.from_postgis(sql,con,geom_col='geom' )

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