Handle case when version given is an empty string in uv_python module

plugins/modules/uv_python.py

@@ -118,10 +118,9 @@ class UV:
         self.bin_path = self.module.get_bin_path("uv", required=True)
         self._ensure_min_uv_version()
         try:
-            python_version = module.params["version"]
-            self.python_version = StrictVersion(python_version)
+            self.python_version = StrictVersion(module.params["version"])
             self.python_version_str = str(self.python_version)
-        except ValueError:
+        except (ValueError, AttributeError):
             self.module.fail_json(
                 msg="Unsupported version format. Valid version numbers consist of two or three dot-separated numeric components, \
                   with an optional 'pre-release' tag on the end (e.g. 3.12, 3.12.3, 3.15.0a5) are supported in this release."

tests/integration/targets/uv_python/tasks/main.yaml

@@ -257,10 +257,25 @@
 - name: No specified version
   uv_python:
     state: latest
+    version: ""
   ignore_errors: true
   register: no_version
 
 - name: Verify failure when no version is specified
   assert:
     that:
-      - no_version.failed is true
+      - no_version.failed is true
+      - '"Unsupported version format" in no_version.msg'
+
+- name: Unsupported version format given
+  uv_python:
+    state: latest
+    version: "3.8.post2"
+  ignore_errors: true
+  register: wrong_version
+
+- name: Verify failure when unsupported version format is specified
+  assert:
+    that:
+      - wrong_version.failed is true
+      - '"Unsupported version format" in wrong_version.msg'