conn = psycopg2.connect(constr)
cur = conn.cursor()

sqlstr = "SELECT DISTINCT adm0_name FROM wld_bnd_adm0_gaul_2015 ORDER BY adm0_name;"
cur.execute(sqlstr)
countries = cur.fetchall()
ctx['countries'] = countries

{% if countries %}
   {% for cntr in countries %}
      <li><a href="#" id= {{ cntr }}>{{ cntr }}</a></li>
    {% endfor %}
{% endif %}

[(u'Abyei',), (u'Afghanistan',), (u...

countries = json.dumps(countries)