Fix bug, bump patch version (#331)

* Fix bug

* Automatic latest version

* Patch version bump in preparation for release

nam/_version.py

@@ -1 +1 @@
-__version__ = "0.7.2"
+__version__ = "0.7.3"

nam/train/gui.py

@@ -34,13 +34,16 @@ def _ensure_graceful_shutdowns():
 from tkinter import filedialog
 from typing import Callable, Dict, Optional, Sequence
 
-try:
+try:  # 3rd-party and 1st-party imports
     import torch
 
     from nam import __version__
     from nam.train import core
     from nam.models.metadata import GearType, UserMetadata, ToneType
 
+    # Ok private access here--this is technically allowed access
+    from nam.train._names import LATEST_VERSION
+
     _install_is_valid = True
     _HAVE_ACCELERATOR = torch.cuda.is_available() or torch.backends.mps.is_available()
 except ImportError:
@@ -170,7 +173,7 @@ def __init__(self):
         self._path_button_input = _PathButton(
             self._frame_input_path,
             "Input Audio",
-            "Select input DI file (eg: v3_0_0.wav)",
+            f"Select input DI file (e.g. {LATEST_VERSION.name})",
             _PathType.FILE,
             hooks=[self._check_button_states],
         )