update

.CondaPkg/env/Lib/importlib/resources/readers.py

@@ -31,8 +31,10 @@ class FileReader(abc.TraversableResources):
 
 class ZipReader(abc.TraversableResources):
     def __init__(self, loader, module):
-        _, _, name = module.rpartition('.')
-        self.prefix = loader.prefix.replace('\\', '/') + name + '/'
+        self.prefix = loader.prefix.replace('\\', '/')
+        if loader.is_package(module):
+            _, _, name = module.rpartition('.')
+            self.prefix += name + '/'
         self.archive = loader.archive
 
     def open_resource(self, resource):

.CondaPkg/env/Lib/importlib/resources/simple.py

@@ -88,7 +88,7 @@ class ResourceHandle(Traversable):
     def open(self, mode='r', *args, **kwargs):
         stream = self.parent.reader.open_binary(self.name)
         if 'b' not in mode:
-            stream = io.TextIOWrapper(*args, **kwargs)
+            stream = io.TextIOWrapper(stream, *args, **kwargs)
         return stream
 
     def joinpath(self, name):