foo.diff

diff --git a/testing/mozharness/scripts/release/generate-checksums.py b/testing/mozharness/scripts/release/generate-checksums.py
--- a/testing/mozharness/scripts/release/generate-checksums.py
+++ b/testing/mozharness/scripts/release/generate-checksums.py
@@ -158,17 +158,17 @@ class ChecksumsGenerator(BaseScript, Vir
             else:
                 self.log("Using checksums format")
                 return checksum_files["checksums"]
 
         pool = ThreadPool(self.config["parallelization"])
         pool.map(worker, find_checksums_files())
 
         for c in raw_checksums:
-            for f, info in parse_checksums_file(c).iteritems():
+            for f, info in parse_checksums_file(c).items():
                 for pattern in self.config["includes"]:
                     if re.search(pattern, f):
                         if f in self.checksums:
                             if info == self.checksums[f]:
                                 self.debug("Duplicate checksum for file {}"
                                            " but the data matches;"
                                            " continuing...".format(f))
                                 continue