Python AST
Python AST:
The ast module in Python stands for “Abstract Syntax Tree”. The abstract syntax tree is a representation of the source code that is parsed by the interpreter. The ast module helps Python applications to process trees of the Python abstract syntax grammar. It can help read and modify the structure of Python code dynamically.
Here is a simple example of using the ast module to parse a string of Python code:
import ast
# some Python code in a string
code = """
def func(x):
return x * 2
"""
# parse the code into an AST
tree = ast.parse(code)
# inspect the AST
print(ast.dump(tree))
This will print out a detailed representation of the abstract syntax tree for the code. You’ll see nodes for the function definition, the arguments, the return statement, and the arithmetic operation.
In practical usage, the ast module can be used for a variety of tasks such as code analysis (linter tools), automatic code formatting, code generation, or executing Python code dynamically.
Note: Be careful when executing dynamic code with ast as it can be a security risk. Always make sure the source of the code is trusted.
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