diff --git a/linkerconfig/proto/Android.bp b/linkerconfig/proto/Android.bp
index 3b1e4ab..754e7bf 100644
--- a/linkerconfig/proto/Android.bp
+++ b/linkerconfig/proto/Android.bp
@@ -19,14 +19,6 @@
 
 python_library_host {
     name: "linker_config_proto",
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-        },
-    },
     srcs: [
         "linker_config.proto",
     ],
diff --git a/scripts/hiddenapi/Android.bp b/scripts/hiddenapi/Android.bp
index 07878f9..1e89efe 100644
--- a/scripts/hiddenapi/Android.bp
+++ b/scripts/hiddenapi/Android.bp
@@ -18,29 +18,31 @@
     default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
+python_defaults {
+    name: "hiddenapi_defaults",
+    version: {
+        py3: {
+            embedded_launcher: true,
+        },
+    },
+}
+
 python_binary_host {
     name: "analyze_bcpf",
     main: "analyze_bcpf.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["analyze_bcpf.py"],
     // Make sure that the bpmodify tool is built.
     data: [":bpmodify"],
     libs: [
         "signature_trie",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
 }
 
 python_test_host {
     name: "analyze_bcpf_test",
     main: "analyze_bcpf_test.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: [
         "analyze_bcpf.py",
         "analyze_bcpf_test.py",
@@ -50,15 +52,6 @@
     libs: [
         "signature_trie",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
     test_options: {
         unit_test: true,
     },
@@ -67,49 +60,25 @@
 python_binary_host {
     name: "merge_csv",
     main: "merge_csv.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["merge_csv.py"],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
 }
 
 python_binary_host {
     name: "generate_hiddenapi_lists",
     main: "generate_hiddenapi_lists.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["generate_hiddenapi_lists.py"],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
 }
 
 python_test_host {
     name: "generate_hiddenapi_lists_test",
     main: "generate_hiddenapi_lists_test.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: [
         "generate_hiddenapi_lists.py",
         "generate_hiddenapi_lists_test.py",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
     test_options: {
         unit_test: true,
     },
@@ -123,17 +92,9 @@
 python_test_host {
     name: "signature_trie_test",
     main: "signature_trie_test.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["signature_trie_test.py"],
     libs: ["signature_trie"],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
     test_options: {
         unit_test: true,
     },
@@ -142,24 +103,17 @@
 python_binary_host {
     name: "verify_overlaps",
     main: "verify_overlaps.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["verify_overlaps.py"],
     libs: [
         "signature_trie",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
 }
 
 python_test_host {
     name: "verify_overlaps_test",
     main: "verify_overlaps_test.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: [
         "verify_overlaps.py",
         "verify_overlaps_test.py",
@@ -167,15 +121,6 @@
     libs: [
         "signature_trie",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
     test_options: {
         unit_test: true,
     },
@@ -184,34 +129,18 @@
 python_binary_host {
     name: "signature_patterns",
     main: "signature_patterns.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: ["signature_patterns.py"],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
 }
 
 python_test_host {
     name: "signature_patterns_test",
     main: "signature_patterns_test.py",
+    defaults: ["hiddenapi_defaults"],
     srcs: [
         "signature_patterns.py",
         "signature_patterns_test.py",
     ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
     test_options: {
         unit_test: true,
     },