Python3 Migrate

venv/lib/python3.7/site-packages/mopidy/config/validators.py

@@ -0,0 +1,39 @@
+# TODO: add validate regexp?
+
+
+def validate_required(value, required):
+    """Validate that ``value`` is set if ``required``
+
+    Normally called in :meth:`~mopidy.config.types.ConfigValue.deserialize` on
+    the raw string, _not_ the converted value.
+    """
+    if required and not value:
+        raise ValueError("must be set.")
+
+
+def validate_choice(value, choices):
+    """Validate that ``value`` is one of the ``choices``
+
+    Normally called in :meth:`~mopidy.config.types.ConfigValue.deserialize`.
+    """
+    if choices is not None and value not in choices:
+        names = ", ".join(repr(c) for c in choices)
+        raise ValueError(f"must be one of {names}, not {value}.")
+
+
+def validate_minimum(value, minimum):
+    """Validate that ``value`` is at least ``minimum``
+
+    Normally called in :meth:`~mopidy.config.types.ConfigValue.deserialize`.
+    """
+    if minimum is not None and value < minimum:
+        raise ValueError(f"{value!r} must be larger than {minimum!r}.")
+
+
+def validate_maximum(value, maximum):
+    """Validate that ``value`` is at most ``maximum``
+
+    Normally called in :meth:`~mopidy.config.types.ConfigValue.deserialize`.
+    """
+    if maximum is not None and value > maximum:
+        raise ValueError(f"{value!r} must be smaller than {maximum!r}.")