documentation/wowl_markdown_doc/python_interpreter.md

Python Interpreter

Overview

The Odoo web client features a built-in small python interpreter. Its purpose is to evaluate small python expressions. This is important, because views in Odoo have modifiers written in python, but they need to be evaluated by the browser.

Example:

evaluate("1 + 2*{'a': 1}.get('b', 54) + v", { v: 33 }); // returns 142

API

The py javascript code exports 5 functions:

Function	Description
tokenize(expr: string) -> Token[]	convert a string into a list of tokens
parse(tokens: Token[]) -> AST	parse a list of tokens into an AST
parseExpr(expr: string) -> AST	tokenize and parse an expression
evaluate(ast: AST) -> any	evaluate an AST
evaluateExpr(expr: string) -> any	tokenize, parse and evaluate an expression