1 files changed, 4 insertions, 0 deletions
diff --git a/mesonbuild/modules/python.py b/mesonbuild/modules/python.py
index 0e569a0..a705109 100644
--- a/mesonbuild/modules/python.py
+++ b/mesonbuild/modules/python.py
@@ -25,6 +25,7 @@ from ..interpreterbase import (
     InterpreterObject, InvalidArguments
 )
 from ..interpreter import ExternalProgramHolder
+from ..interpreterbase import flatten
 from ..build import known_shmod_kwargs
 from .. import mlog
 from ..environment import detect_cpu_family
@@ -415,6 +416,9 @@ class PythonInstallation(ExternalProgramHolder, InterpreterObject):
         except AttributeError:
             raise InvalidArguments('Python object does not have method %s.' % method_name)
 
+        if not getattr(fn, 'no-args-flattening', False):
+            args = flatten(args)
+
         if method_name in ['extension_module', 'dependency', 'install_sources']:
             value = fn(self.interpreter, None, args, kwargs)
             return self.interpreter.holderify(value)