django postgis install

migrate_error.sh

/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.
  """)
Traceback (most recent call last):
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute
    return self.cursor.execute(sql)
psycopg2.ProgrammingError: permission denied to create extension "postgis"
HINT:  Must be superuser to create this extension.


The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "manage.py", line 24, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
    utility.execute()
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/core/management/base.py", line 335, in execute
    output = self.handle(*args, **options)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 77, in handle
    connection.prepare_database()
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/contrib/gis/db/backends/postgis/base.py", line 26, in prepare_database
    cursor.execute("CREATE EXTENSION IF NOT EXISTS postgis")
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
    return super().execute(sql, params)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 68, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
    return self.cursor.execute(sql, params)
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/Users/harrymoreno/.local/share/virtualenvs/litt-api-HgI9cQzm/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute
    return self.cursor.execute(sql)
django.db.utils.ProgrammingError: permission denied to create extension "postgis"
HINT:  Must be superuser to create this extension.

migration.py

# Generated by Django 2.0.3 on 2018-07-18 02:56

import django.contrib.gis.db.models.fields
from django.db import migrations
from django.contrib.postgres.operations import CreateExtension


class Migration(migrations.Migration):

    dependencies = [
        ('polls', '0002_photo'),
    ]

    operations = [
        CreateExtension('postgis'),
        migrations.AddField(
            model_name='event',
            name='location',
            field=django.contrib.gis.db.models.fields.PointField(null=True, srid=4326),
        ),
    ]

shell.sh

> python manage.py makemigrations
> python manage.py migrate

solution is to create the extension in the correct db. I had incorrectly created the extension in the default db for superuser.

This worked for me
CREATE EXTENSION postgis;
CREATE EXTENSION postgis_topology;