diff --git a/python/fate/__init__.py b/python/fate/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/python/test/test_script.py b/python/test/test_script.py
new file mode 100644
index 0000000000..f7893678d1
--- /dev/null
+++ b/python/test/test_script.py
@@ -0,0 +1,43 @@
+def host(federation_id, local_party, parties):
+    from fate.arch.context import Context
+
+    ctx = Context("guest")
+    ctx.init_computing()
+    ctx.init_federation(federation_id, local_party=local_party, parties=parties)
+    with ctx.sub_ctx("predict") as sub_ctx:
+        sub_ctx.log.debug("ctx inited")
+        loss = 0.2
+        sub_ctx.guest.push("loss", loss)
+        guest_loss = sub_ctx.guest.pull("loss").unwrap()
+        sub_ctx.summary.add("guest_loss", guest_loss)
+        ctx.log.debug(f"{sub_ctx.summary.summary}")
+
+
+def guest(federation_id, local_party, parties):
+    from fate.arch.context import Context
+
+    ctx = Context("host")
+    ctx.init_computing()
+    ctx.init_federation(federation_id, local_party=local_party, parties=parties)
+    with ctx.sub_ctx("predict") as sub_ctx:
+        sub_ctx.log.error("ctx inited")
+        loss = 0.1
+        sub_ctx.hosts.push("loss", loss)
+        host_loss = sub_ctx.hosts(0).pull("loss").unwrap()
+        sub_ctx.summary.add("host_loss", host_loss)
+        ctx.log.debug(f"{sub_ctx.summary.summary}")
+
+
+if __name__ == "__main__":
+    from multiprocessing import Process
+
+    federation_id = "federation_id"
+    guest_party = ("guest", "guest_party_id")
+    host_party = ("host", "host_party_id")
+    parties = [guest_party, host_party]
+    p_guest = Process(target=guest, args=(federation_id, guest_party, parties))
+    p_host = Process(target=host, args=(federation_id, host_party, parties))
+    p_guest.start()
+    p_host.start()
+    p_guest.join()
+    p_host.join()