[TVMScript] More accurate hints for ImportError (apache#13662)

python/tvm/script/highlight.py

@@ -160,13 +160,20 @@ def _get_pygments_style(
         if version.parse(pygments.__version__) < version.parse("2.4.0"):
             raise ImportError("Required Pygments version >= 2.4.0 but got " + pygments.__version__)
     except ImportError as err:
+        if err.name == "packaging":
+            name = "packaging"
+        elif err.name == "pygments":
+            name = "Pygments>=2.4.0"
+        else:
+            raise ValueError(f'Package "{err.name}" should not be used')
+
         with warnings.catch_warnings():
             warnings.simplefilter("once", UserWarning)
-            install_cmd = sys.executable + ' -m pip install "Pygments>=2.4.0" --upgrade --user'
+            install_cmd = sys.executable + f' -m pip install "{name}" --upgrade --user'
             warnings.warn(
                 str(err)
                 + "\n"
-                + "To print highlighted TVM script, please install Pygments:\n"
+                + f"To print highlighted TVM script, please install {name}:\n"
                 + install_cmd,
                 category=UserWarning,
             )