How do I connect to SQL Server via sqlalchemy using Windows Authentication?

In order to use Windows Authentication with sqlalchemy and mssql, the following connection string is required:

ODBC Driver:

engine = sqlalchemy.create_engine('mssql://*server_name*/*database_name*?trusted_connection=yes')

SQL Express Instance:

engine = sqlalchemy.create_engine('mssql://*server_name*\\SQLEXPRESS/*database_name*?trusted_connection=yes') 

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