move a bunch of imports into TYPE_CHECKING blocks

These are only used for type checking, so don't bother importing them at
runtime.

Generally add future annotations at the same time, to make sure that
existing uses of these imports don't need to be quoted.

1 files changed, 5 insertions, 2 deletions

diff --git a/mesonbuild/modules/qt.py b/mesonbuild/modules/qt.py
index 81dd3e9..99581a4 100644
--- a/mesonbuild/modules/qt.py
+++ b/mesonbuild/modules/qt.py
@@ -12,6 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+from __future__ import annotations
 
 import os
 import shutil
@@ -23,17 +24,19 @@ from .. import build
 from .. import coredata
 from .. import mlog
 from ..dependencies import find_external_dependency, Dependency, ExternalLibrary
-from ..mesonlib import MesonException, File, FileOrString, version_compare, Popen_safe
+from ..mesonlib import MesonException, File, version_compare, Popen_safe
 from ..interpreter import extract_required_kwarg
 from ..interpreter.type_checking import NoneType
 from ..interpreterbase import ContainerTypeInfo, FeatureDeprecated, KwargInfo, noPosargs, FeatureNew, typed_kwargs
-from ..programs import ExternalProgram, NonExistingExternalProgram
+from ..programs import NonExistingExternalProgram
 
 if T.TYPE_CHECKING:
     from . import ModuleState
     from ..dependencies.qt import QtPkgConfigDependency, QmakeQtDependency
     from ..interpreter import Interpreter
     from ..interpreter import kwargs
+    from ..mesonlib import FileOrString
+    from ..programs import ExternalProgram
 
     QtDependencyType = T.Union[QtPkgConfigDependency, QmakeQtDependency]