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ast.IfExp

expressions

The node for a conditional expression a if cond else b: test is the condition, body the value when true, orelse the value when false.

Syntax

ast.IfExp(test, body, orelse)

Field order differs from source order: the value comes first in the code, but body follows test in the node. It is an expression, not a statement: IfExp has no blocks and no elif — the chain 'a if p else b if q else c' gives an IfExp nested in orelse. The if … : statement is a different node, If.

Examples

import ast
e = ast.parse('a if p else b if q else c', mode='eval').body
print(type(e).__name__, e.test.id, e.body.id)  # → IfExp p a
print(type(e.orelse).__name__, e.orelse.test.id)  # → IfExp q

See also

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