macOS Mojave + pyodbc + FreeTDS + SQL Server + Django 2.2

macos-pyodbc-freetds-mssql-django.md

pyODBC + FreeTDS

1. Run brew install unixodbc freetds
2. Add section to /usr/local/etc/odbcinst.ini:

   [FreeTDS]
   Description     = FreeTDS unixODBC Driver
   Driver          = /usr/local/lib/libtdsodbc.0.so
   Setup           = /usr/local/lib/libtdsodbc.0.so
   UsageCount      = 1

3. Connect to server (bypassing the freetds.conf file):

   import pyodbc
   
   connstr = 'DRIVER={driver};SERVER={server};UID={username};PWD={password};DATABASE={database}'.format(
       driver='FreeTDS',
       server='127.0.0.1\INSTANCE01',
       username='user',
       password='pass',
       database='db'
   )
   
   conn = pyodbc.connect(connstr)

Django 2.2 (extra)

1. Install the @JordanReiter Django 2.2 fork (Check michiya/django-pyodbc-azure#192 for more information):
   pip3 install git+https://github.com/JordanReiter/django-pyodbc-azure@azure-2.2#egg=django-pyodbc-azure

2. Edit django settings.py

   DATABASES = {
       'default': {
           'ENGINE': 'sql_server.pyodbc',
           'HOST': '127.0.0.1\INSTANCE01',
           'NAME': 'db',
           'USER': 'user',
           'PASSWORD': 'pass',
           'OPTIONS': {
               'driver': 'FreeTDS',
               'host_is_server': True,
           },
       }
   }

In my case fixes:

• [01000] [unixODBC][Driver Manager]Can't open lib 'FreeTDS' : file not found (0) (SQLDriverConnect)" among other errors.

• [08S01] [FreeTDS][SQL Server]Unable to connect: Adaptive Server is unavailable or does not exist (20009) (SQLDriverConnect)