Fix lint

3 files changed, 13 insertions, 3 deletions

diff --git a/qutebrowser/misc/backendproblem.py b/qutebrowser/misc/backendproblem.py
index 5c8e1002d..6e2bd1866 100644
--- a/qutebrowser/misc/backendproblem.py
+++ b/qutebrowser/misc/backendproblem.py
@@ -57,7 +57,7 @@ class _Button:
 
     text = attr.ib()  # type: str
     setting = attr.ib()  # type: str
-    value = attr.ib()  # type: str
+    value = attr.ib()  # type: typing.Any
     default = attr.ib(default=False)  # type: bool
 
 
@@ -255,7 +255,7 @@ class _BackendProblemChecker:
 
         raise utils.Unreachable
 
-    def _xwayland_options(self) -> typing.Tuple[typing.List[_Button], str]:
+    def _xwayland_options(self) -> typing.Tuple[str, typing.List[_Button]]:
         """Get buttons/text for a possible XWayland solution."""
         buttons = []
         text = "<p>You can work around this in one of the following ways:</p>"
diff --git a/qutebrowser/utils/utils.py b/qutebrowser/utils/utils.py
index 39d46add8..ccae5a5d3 100644
--- a/qutebrowser/utils/utils.py
+++ b/qutebrowser/utils/utils.py
@@ -780,7 +780,7 @@ def ceil_log(number: int, base: int) -> int:
     return result
 
 
-def libgl_workaround():
+def libgl_workaround() -> None:
     """Work around QOpenGLShaderProgram issues, especially for Nvidia.
 
     See https://bugs.launchpad.net/ubuntu/+source/python-qt4/+bug/941826
diff --git a/qutebrowser/utils/version.py b/qutebrowser/utils/version.py
index 8dc4ec593..9c8c8f9e8 100644
--- a/qutebrowser/utils/version.py
+++ b/qutebrowser/utils/version.py
@@ -517,6 +517,16 @@ class OpenGLInfo:
 
     @classmethod
     def parse(cls, *, vendor: str, version: str) -> 'OpenGLInfo':
+        """Parse OpenGL version info from a string.
+
+        The arguments should be the strings returned by OpenGL for GL_VENDOR
+        and GL_VERSION, respectively.
+
+        According to the OpenGL reference, the version string should have the
+        following format:
+
+        <major>.<minor>[.<release>] <vendor-specific info>
+        """
         if ' ' not in version:
             log.misc.warning("Failed to parse OpenGL version (missing space): "
                              "{}".format(version))