fix py2 compat

edosl0util/cli/rdrmerge.py

 import logging
 import os
+import shutil
+from contextlib import contextmanager
 from datetime import datetime
 from glob import glob
 from os.path import basename, join
-from tempfile import TemporaryDirectory
+from tempfile import mkdtemp
 
 from ..jpssrdr import atms_sci_to_l0, cris_sci_to_l0, spacecraft_to_l0, viirs_sci_to_l0
 from ..rdrgen import packets_to_rdrs
@@ -11,6 +13,15 @@ from ..rdrgen import packets_to_rdrs
 LOG = logging.getLogger(__name__)
 
 
+@contextmanager
+def TemporaryDirectory(**kwds):
+    tmpdir = mkdtemp(**kwds)
+    try:
+        yield tmpdir
+    finally:
+        shutil.rmtree(tmpdir)
+
+
 def merge_rdrs(rdrs):
     # filter and validiate rdrs
     to_process = {