[Python] Can't run the server on Django (connection refused)

I finally (think) installed successfully PostgreSQL and also de psycopg2 (I use Windows). Btw, is some way to check it's working properly?

Well, the thing now is that I can't start the server, while I type 'python manage.py runserver' it shows this (at the end of the command):

conn = _connect(dsn, connection_factory=connection_factory, async=async)
django.db.utils.OperationalError: could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" :1) and accepting
TCP/IP connections on port 8000?
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 8000?


I've searched a lot of documentation about it, for example in this topic, but I can't find the way to make it work properly. I've tried several changes in the pg_hba and postgresql files, but with no exit. In this moment, pg_hba looks like:

# TYPE DATABASE USER ADDRESS METHOD

# IPv4 local connections:
host all all 127.0.0.1 md5
# IPv6 local connections:
host all all 127.0.0.1 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#host replication postgres 127.0.0.1/32 md5
#host replication postgres ::1/128 md5


And postgresql conf looks like:

# - Connection Settings -

listen_addresses = 'localhost' # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
port = 8000 # (change requires restart)
max_connections = 100 # (change requires restart)
# Note: Increasing max_connections costs ~400 bytes of shared memory per
# connection slot, plus lock space (see max_locks_per_transaction).
#superuser_reserved_connections = 3 # (change requires restart)
#unix_socket_directories = '' # comma-separated list of directories
# (change requires restart)
#unix_socket_group = '' # (change requires restart)
#unix_socket_permissions = 0777 # begin with 0 to use octal notation
# (change requires restart)
#bonjour = off # advertise server via Bonjour
# (change requires restart)
#bonjour_name = '' # defaults to the computer name


Btw, my settings.py of the database look like this:

DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'database1',
'USER': 'root',
'PASSWORD': '123456',
'HOST': 'localhost',
'PORT': '8000',
}
}


I haven't created a database BTW, how should I do it? What are the applications of the PostgreSQL prompt?

I would highly appreciate help with this issue I've been days searching and trying but with no exit. Thank you very much.

EDIT 1: I tried changing the settings.py port to 5432, but now the error message is the same, just changing the port:

could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?


The config files are right this way? Should I change something? I can't find an answer. I tried with python manage.py runserver and both indicating the 127.0.0.1:8000 and 8001, but no changes in the error message. What's going wrong? Thank you very much.

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