Fix: Use ctypes for Windows & Linux

python/usearch/__init__.py

@@ -5,12 +5,17 @@
 from typing import Optional, Tuple
 from urllib.error import HTTPError
 
-
-#! SimSIMD must come before USearch import
+#! Load SimSIMD before the USearch compiled module
 try:
+    import ctypes
     import simsimd
+
+    #! We can't just use the `import simsimd` as on Linux and Windows (unlike MacOS),
+    #! the symbols are not automatically loaded into the global namespace.
+    simsimd_lib = ctypes.CDLL(simsimd.__file__, mode=ctypes.RTLD_GLOBAL)
 except ImportError:
-    pass
+    pass  # Well, the user doesn't want SimSIMD, I assume :)
+
 
 from usearch.compiled import (
     VERSION_MAJOR,

python/usearch/index.py

@@ -25,11 +25,16 @@
 import numpy as np
 from tqdm import tqdm
 
-#! SimSIMD must come before USearch import
+#! Load SimSIMD before the USearch compiled module
 try:
+    import ctypes
     import simsimd
+
+    #! We can't just use the `import simsimd` as on Linux and Windows (unlike MacOS),
+    #! the symbols are not automatically loaded into the global namespace.
+    simsimd_lib = ctypes.CDLL(simsimd.__file__, mode=ctypes.RTLD_GLOBAL)
 except ImportError:
-    pass
+    pass  # Well, the user doesn't want SimSIMD, I assume :)
 
 # Precompiled symbols that won't be exposed directly:
 from usearch.compiled import (

setup.py

@@ -159,7 +159,7 @@ def get_bool_env_w_name(name: str, preference: bool) -> tuple:
 ]
 if use_simsimd:
     include_dirs.append("simsimd/include")
-    install_requires.append("simsimd>=5.6.3")
+    install_requires.append("simsimd>=5.6.4")
 if use_fp16lib:
     include_dirs.append("fp16/include")