PyAvaTax

PyAvaTax is a Python library for easily integrating Avalara’s RESTful AvaTax API Service. You will need an account with Avalara (www.avalara.com).

AvaTax expects a JSON (or XML) POST to their tax/get/ URI, like this:

{
    "DocDate": "2012-10-24",
    "CompanyCode": "FooBar",
    "CustomerCode": "[email protected]",
    "DocCode": "1001",
    "DocType": "SalesOrder",
    "Addresses":
    [
        {
            "AddressCode": "1",
            "Line1": "435 Ericksen Avenue Northeast",
            "Line2": "#250",
            "PostalCode": "98110",
        },
        {
            "AddressCode": "2",
            "Line1": "7562 Kearney St.",
            "PostalCode": "80022-1336",
        },
    ],
    "Lines":
    [
        {
            "LineNo": "1",
            "DestinationCode": "2",
            "OriginCode": "1",
            "Qty": 1,
            "Amount": "100",
        },
    ],
}

The PyAvaTax API object accepts a Python dictionary that looks just like the above data. We will parse it, validate it, handle the HTTP layer for you, and return an object to you.

api = API(AVALARA_ACCOUNT_NUMBER, AVALARA_LICENSE_KEY, AVALARA_COMPANY_CODE)
tax_response = api.post_tax(dictionary_data)
print tax_response.TotalTax

That returned object will have all the response data from AvaTax easily accessible by dot-notation.

Or, an integration using the PyAvaTax library can be done by constructing objects:

api = API(AVALARA_ACCOUNT_NUMBER, AVALARA_LICENSE_KEY, AVALARA_COMPANY_CODE)
doc = Document.new_sales_order(DocCode='1001', DocDate=datetime.date.today(), CustomerCode='[email protected]')
from_address = Address(Line1="435 Ericksen Avenue Northeast", Line2="#250", PostalCode="98110")
to_address = Address(Line1="7562 Kearney St.", PostalCode="80022-1336")
doc.add_from_address(from_address)
doc.add_to_address(to_address)
line = Line(Amount=10.00)
doc.add_line(line)
response = api.post_tax(doc)