update version.py

setup.py

@@ -592,6 +592,33 @@ except Exception as e:
                   stacklevel=2)
     __version__ = "dev"
     __version_tuple__ = (0, 0, __version__)
+    
+    
+def _prev_minor_version_was(version_str):
+    '''Check whether a given version matches the previous minor version.
+
+    Return True if version_str matches the previous minor version.
+
+    For example - return True if the current version if 0.7.4 and the
+    supplied version_str is '0.6'.
+
+    Used for --show-hidden-metrics-for-version.
+    '''
+    # Match anything if this is a dev tree
+    if __version_tuple__[0:2] == (0, 0):
+        return True
+
+    # Note - this won't do the right thing when we release 1.0!
+    assert __version_tuple__[0] == 0
+    assert isinstance(__version_tuple__[1], int)
+    return version_str == f"{{__version_tuple__[0]}}.{{__version_tuple__[1] - 1}}"
+
+
+def _prev_minor_version():
+    '''For the purpose of testing, return a previous minor version number.'''
+    # In dev tree, this will return "0.-1", but that will work fine"
+    assert isinstance(__version_tuple__[1], int)
+    return f"{{__version_tuple__[0]}}.{{__version_tuple__[1] - 1}}"
 """
     
     with open(add_version_path, encoding="utf-8",mode="w") as file: