On my dev machines, I'm using SQLite, so the database is the same
regardless of what machine I'm using. In your case, you could set your
db.py file to detect your machine's host name and use the appropriate DAL
string accordingly.
For example:
import socket
hostname = socket.gethostname()
if hostname == 'dev1':
db = DAL('postgres://123.45.168.90/mydb')
elif hostname == 'dev2':
db = DAL('postgres://98.76.43.21/mydb')
else:
# production database
db = DAL('postgres://22.33.44.55/productiondb')
Another option, which I used to use is to set up the database on your
primary dev machine (probably your home workstation), then when using your
laptop, set up an SSH tunnel, forwarding the database port. You would still
have to use the method above, since your laptop would see your home
database server as running locally, but at least this way you can work with
the same database all the time.
The second option may or may not be good for you, but that's up to
you....I'm just making sure I give you a couple of options to chose from.