try to fix get site-paclages folder for ubutnu

tests/test_metadata.py

@@ -10,11 +10,20 @@ def get_site_package_folder(self):
           for f in site.getsitepackages():
             if 'site-packages' in f:
                 return f
-
-    def get_installed_lib_version(self, lib_name:str):
+            
+    def find_lib_folder(self, lib_name:str):
         dirs = [f for f in os.listdir(self.get_site_package_folder()) if f.startswith(lib_name.replace('-', '_')+'-')]
         if len(dirs) == 1:
-            metadata_file = os.path.join(sys.exec_prefix, 'Lib', 'site-packages', dirs[0], 'METADATA')
+            for f in os.listdir(self.get_site_package_folder()):
+                print(f"file in dir: {f}")
+            return dirs[0]
+        return None
+
+    def get_installed_lib_version(self, lib_name:str):
+
+        dir_name = self.find_lib_folder(lib_name)
+        if dir_name:
+            metadata_file = os.path.join(sys.exec_prefix, 'Lib', 'site-packages', dir_name, 'METADATA')
             with open(metadata_file, 'r') as f:
                 for l in f.readlines():
                     if l.startswith('Version: '):