RustPython
diff --git a/‎Lib/tarfile.py
+4-2 b/‎Lib/tarfile.py
+4-2
diff --git a/‎Lib/test/support/__init__.py
+6-4 b/‎Lib/test/support/__init__.py
+6-4
@@ -392,7 +392,8 @@ def __init__(self, name, mode, comptype, fileobj, bufsize,
 
             elif comptype == "xz":
                 try:
-                    import lzma
+                    # TODO: RUSTPYTHON remove underscore
+                    import lzma_
                 except ImportError:
                     raise CompressionError("lzma module is not available") from None
                 if mode == "r":
@@ -1923,7 +1924,8 @@ def xzopen(cls, name, mode="r", fileobj=None, preset=None, **kwargs):
             raise ValueError("mode must be 'r', 'w' or 'x'")
 
         try:
-            from lzma import LZMAFile, LZMAError
+            # TODO: RUSTPYTHON remove underscore
+            from lzma_ import LZMAFile, LZMAError
         except ImportError:
             raise CompressionError("lzma module is not available") from None
 
 
@@ -494,10 +494,12 @@ def requires_bz2(reason='requires bz2'):
     return unittest.skipUnless(bz2, reason)
 
 def requires_lzma(reason='requires lzma'):
-    try:
-        import lzma
-    except ImportError:
-        lzma = None
+    # try:
+        # import lzma
+    # except ImportError:
+        # lzma = None
+    # TODO: RUSTPYTHON
+    lzma = None
     return unittest.skipUnless(lzma, reason)
 
 def has_no_debug_ranges():