We then call (‘black_scholes‘, …) with those inputs and set the result back on the form.
#ANVIL CLOUD CODE#
In code above you will see that we are extracting the values from the form using the names of the controls that we configured when creating the form in the Design view. Is_call = self.option_lected_value = 'Call' Interest_rate = float(self.interest_rate.text or self.interest_aceholder) / 100.0ĭiv_yield = float(self.div_yield.text or self.div_aceholder) / 100.0 """Calculate the fair price of the option""" # Any code you write here will run when the form opens. The actual option pricing will be performed as a server function.Ĭlass BlackScholesOptionPricer(BlackScholesOptionPricerTemplate): This code handles how the user interface should respond to events. The code we write here is Python code but it will actually run in the web browser (or client). Now we can flip to the Code tab and write the code that will power our web app. Here’s what our form looks like after creating all the inputs needed for pricing an option: If you’re new to Anvil take a look at some of the tutorials or clone our Black Scholes Option Pricer app. To design our web app we drag and drop components onto the form as needed. To follow along in Anvil you can clone the Black Scholes Option Pricer app. If you don’t know anything about option pricing don’t be put off, just think of it as a black box function with some inputs that produces an output that we can code in Python. We won’t go into details about it in this post, we will just use it as an example. The Black Scholes pricing model is a well understood model for pricing European Options. Exposing a Python function to Excel is as simple as adding the decorator to the function definition. The open-source project Anvil-PyXLL bridges Anvil and PyXLL. By combining the two we can have an Excel add-in that exposes Python functions deployed in the cloud, run from worksheet functions right in Excel! Anvil allows Python code to run on remote servers in the same way that it does when web apps run in a web browser.
#ANVIL CLOUD INSTALL#
Typically, you install the Python code for PyXLL to run on the same local PC that is running Excel. The most commonly used feature of PyXLL is its ability to expose Python functions as “worksheet functions”, so that Python functions can be called from formulas in Excel workbooks. With PyXLL you can write fully featured Excel add-ins using nothing but Python. Anvil allows you to create rich web apps using only Python code. With Anvil you can focus on the functionality of your application without letting the complexities of building the web app from scratch bog you down. Unlike other methods of developing web applications, no JavaScript or HTML programming is required. Anvil is a solution that enables developers, analysts and data scientists to deploy their Python code as a Python-only Web Application.
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