Fix _find_python_dll_file

jpyutil.py

@@ -304,18 +304,16 @@ def _find_python_dll_file(fail=False):
     logger.debug("Searching for Python shared library file")
 
     # Prepare list of search directories
-
     search_dirs = [sys.prefix]
 
+    if installed_base := sysconfig.get_config_var('installed_base'):
+        search_dirs.append(os.path.join(installed_base, "lib"))
+
     extra_search_dirs = [sysconfig.get_config_var(name) for name in PYTHON_LIB_DIR_CONFIG_VAR_NAMES]
     for extra_dir in extra_search_dirs:
         if extra_dir and extra_dir not in search_dirs and os.path.exists(extra_dir):
             search_dirs.append(extra_dir)
 
-    if platform.system() == 'Windows':
-        extra_search_dirs = _get_existing_subdirs(search_dirs, "DLLs")
-        search_dirs = extra_search_dirs + search_dirs
-
     multi_arch_sub_dir = sysconfig.get_config_var('multiarchsubdir')
     if multi_arch_sub_dir:
         while multi_arch_sub_dir.startswith('/'):
@@ -341,14 +339,14 @@ def _find_python_dll_file(fail=False):
     vmin = str(sys.version_info.minor)
 
     if platform.system() == 'Windows':
-        versions = (vmaj + vmin, vmaj, vmaj + vmin + dll_free_threaded_suffix, vmaj + dll_free_threaded_suffix, '')
+        versions = (vmaj + vmin, vmaj, vmaj + vmin + dll_free_threaded_suffix, '')
         file_names = ['python' + v + '.dll' for v in versions]
     elif platform.system() == 'Darwin':
-        versions = (vmaj + "." + vmin, vmaj, vmaj + "." + vmin + dll_free_threaded_suffix, vmaj + dll_free_threaded_suffix, '')
+        versions = (vmaj + "." + vmin, vmaj, vmaj + "." + vmin + dll_free_threaded_suffix, '')
         file_names = ['libpython' + v + '.dylib' for v in versions] + \
                      ['libpython' + v + '.so' for v in versions]
     else:
-        versions = (vmaj + "." + vmin, vmaj, vmaj + "." + vmin + dll_free_threaded_suffix, vmaj + dll_free_threaded_suffix, '')
+        versions = (vmaj + "." + vmin, vmaj, vmaj + "." + vmin + dll_free_threaded_suffix, '')
         file_names = ['libpython' + v + '.so' for v in versions]
 
     logger.debug("Potential Python shared library file names: %s" % repr(file_names))