[SOT] Add str.encode support (#73555)

Author: SigureMo

python/paddle/jit/sot/opcode_translator/executor/variable_dispatch.py

@@ -798,6 +798,23 @@ def str_format(var: ConstantVariable, *args: ConstantVariable):
     return var.format(*args)
 
 
+@Dispatcher.register_decorator(str.encode)
+def str_encode(
+    var: ConstantVariable,
+    encoding: ConstantVariable = None,  # type: ignore
+    errors: ConstantVariable = None,  # type: ignore
+):
+    if encoding is None:
+        encoding = ConstantVariable('utf-8', var.graph, DanglingTracker())
+    if errors is None:
+        errors = ConstantVariable('strict', var.graph, DanglingTracker())
+    return ConstantVariable(
+        var.get_py_value().encode(encoding=encoding.get_py_value()),
+        graph=var.graph,
+        tracker=DummyTracker([var, encoding]),
+    )
+
+
 Dispatcher.register(
     str.lower,
     ("ConstantVariable",),