[GitHub] [beam] chamikaramj commented on a diff in pull request #17366: [BEAM-17035] Call python3 directly when it is available.

[GitBox <gi...@apache.org>]

chamikaramj commented on code in PR #17366:
URL: https://github.com/apache/beam/pull/17366#discussion_r850716094


##########
sdks/java/extensions/python/src/main/java/org/apache/beam/sdk/extensions/python/PythonService.java:
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@@ -96,6 +95,18 @@ public AutoCloseable start() throws IOException, InterruptedException {
     return p::destroy;
   }
 
+  private String whichPython() {
+    for (String executable : ImmutableList.of("python3", "python")) {
+      try {
+        new ProcessBuilder(executable, "--version").start().waitFor();
+        return executable;
+      } catch (IOException | InterruptedException exn) {
+        // Ignore.

Review Comment:
   Will ignore result in a default Python binary being picked ?



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