python django queries , queryset for shell
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from home.models import SignupM
SignupM.objects.all()
from datetime import date
SignupM.objects.create(timestamp=date.today(),username='myname',password='12345')
SignupM.objects.all()[0].username
SignupM.objects.all().first()
SignupM.objects.all().last()
SignupM.objects.filter(username='myname')
SignupM.objects.filter(username='myname').update(username='newname')
SignupM.objects.filter(username__startswith='newname')
SignupM.objects.filter(username='newname').delete()