Fix CI filter pattern and clippy warning

.github/workflows/ci-python.yml

@@ -1,13 +1,18 @@
 
 name: CI-python
 
+# Filter CI as this job will take time.
 on:
   push:
+    paths:
+    - apis/python/**
+    - binaries/runtime/**
+  pull_request:
     branches:
     - main
     paths:
-    - apis/python
-    - binaries/runtime
+    - apis/python/**
+    - binaries/runtime/**
     
 jobs:
 

examples/python-dataflow/run.rs

@@ -37,7 +37,7 @@ async fn build_package(package: &str) -> eyre::Result<()> {
     Ok(())
 }
 
-async fn install_python_dependencies(root: &Path) -> eyre::Result<()> {
+async fn install_python_dependencies(_root: &Path) -> eyre::Result<()> {
     let mut install = tokio::process::Command::new("sh");
     install.arg("./install.sh");
     if !install.status().await?.success() {