Fix `uv python upgrade / install` output when there is a no-op for one request (#16158)

crates/uv/src/commands/python/install.rs

@@ -551,19 +551,28 @@ pub(crate) async fn install(
                 printer.stderr(),
                 "There are no installed versions to upgrade"
             )?;
-        } else if requests.len() > 1 {
+        } else if upgrade && is_unspecified_upgrade {
+            writeln!(
+                printer.stderr(),
+                "All versions already on latest supported patch release"
+            )?;
+        } else if let [request] = requests.as_slice() {
+            // Convert to the inner request
+            let request = &request.request;
             if upgrade {
-                if is_unspecified_upgrade {
+                writeln!(
-                    writeln!(
+                    printer.stderr(),
-                        printer.stderr(),
+                    "{request} is already on the latest supported patch release"
-                        "All versions already on latest supported patch release"
+                )?;
-                    )?;
+            } else {
-                } else {
+                writeln!(printer.stderr(), "{request} is already installed")?;
-                    writeln!(
+            }
-                        printer.stderr(),
+        } else {
-                        "All requested versions already on latest supported patch release"
+            if upgrade {
-                    )?;
+                writeln!(
-                }
+                    printer.stderr(),
+                    "All requested versions already on latest supported patch release"
+                )?;
             } else {
                 writeln!(printer.stderr(), "All requested versions already installed")?;
             }

crates/uv/tests/it/python_install.rs

@@ -88,13 +88,14 @@ fn python_install() {
     "###);
 
     // Similarly, when a requested version is already installed
-    uv_snapshot!(context.filters(), context.python_install().arg("3.13"), @r###"
+    uv_snapshot!(context.filters(), context.python_install().arg("3.13"), @r"
     success: true
     exit_code: 0
     ----- stdout -----
 
     ----- stderr -----
-    "###);
+    Python 3.13 is already installed
+    ");
 
     // You can opt-in to a reinstall
     uv_snapshot!(context.filters(), context.python_install().arg("3.13").arg("--reinstall"), @r"
@@ -716,6 +717,7 @@ fn python_install_preview() {
     ----- stdout -----
 
     ----- stderr -----
+    Python 3.13 is already installed
     ");
     uv_snapshot!(context.filters(), context.python_install().arg("--preview").arg("3.13").env(EnvVars::UV_PYTHON_INSTALL_BIN, "0"), @r"
     success: true
@@ -723,6 +725,7 @@ fn python_install_preview() {
     ----- stdout -----
 
     ----- stderr -----
+    Python 3.13 is already installed
     ");
 
     uv_snapshot!(context.filters(), context.python_install().arg("--preview").arg("--force").arg("3.13"), @r"
@@ -2596,13 +2599,14 @@ fn python_install_no_cache() {
     "###);
 
     // Similarly, when a requested version is already installed
-    uv_snapshot!(context.filters(), context.python_install().arg("3.13"), @r###"
+    uv_snapshot!(context.filters(), context.python_install().arg("3.13"), @r"
     success: true
     exit_code: 0
     ----- stdout -----
 
     ----- stderr -----
-    "###);
+    Python 3.13 is already installed
+    ");
 
     // You can opt-in to a reinstall
     uv_snapshot!(context.filters(), context.python_install().arg("3.13").arg("--reinstall"), @r"

crates/uv/tests/it/python_upgrade.rs

@@ -51,6 +51,7 @@ fn python_upgrade() {
     ----- stdout -----
 
     ----- stderr -----
+    Python 3.10 is already on the latest supported patch release
     ");
 
     // Should reinstall on `--reinstall`