done

lib/python3.11/site-packages/werkzeug/user_agent.py

@@ -0,0 +1,47 @@
+from __future__ import annotations
+
+
+class UserAgent:
+    """Represents a parsed user agent header value.
+
+    The default implementation does no parsing, only the :attr:`string`
+    attribute is set. A subclass may parse the string to set the
+    common attributes or expose other information. Set
+    :attr:`werkzeug.wrappers.Request.user_agent_class` to use a
+    subclass.
+
+    :param string: The header value to parse.
+
+    .. versionadded:: 2.0
+        This replaces the previous ``useragents`` module, but does not
+        provide a built-in parser.
+    """
+
+    platform: str | None = None
+    """The OS name, if it could be parsed from the string."""
+
+    browser: str | None = None
+    """The browser name, if it could be parsed from the string."""
+
+    version: str | None = None
+    """The browser version, if it could be parsed from the string."""
+
+    language: str | None = None
+    """The browser language, if it could be parsed from the string."""
+
+    def __init__(self, string: str) -> None:
+        self.string: str = string
+        """The original header value."""
+
+    def __repr__(self) -> str:
+        return f"<{type(self).__name__} {self.browser}/{self.version}>"
+
+    def __str__(self) -> str:
+        return self.string
+
+    def __bool__(self) -> bool:
+        return bool(self.browser)
+
+    def to_header(self) -> str:
+        """Convert to a header value."""
+        return self.string