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ast.And

operators

The class of the boolean operator and: an And() instance sits in the op field of a BoolOp. Its sibling is ast.Or.

Syntax

ast.And()  # and

And appears only in a BoolOp — the bitwise & is BitAnd in a BinOp, and not is Not in a UnaryOp. All operands of a chain a and b and c sit in one BoolOp.values, so the number of conditions is len(node.values), not the nesting depth. The class name is capitalised: ast.and is a syntax error, because and is a keyword.

Examples

import ast
node = ast.parse('x > 0 and y > 0 and z', mode='eval').body
print(type(node.op).__name__, len(node.values))  # → And 3
print(type(ast.parse('a & b', mode='eval').body.op).__name__)  # → BitAnd

See also

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