Change: load using CSafeLoader, for speed

With a 9 MiB input file with 10,000 dicts, SafeLoader loads it in
about 10 seconds on my laptop, CSafeLoader in about 0.5 seconds.
That's a 20x speed improvement with a one-character change.

1 files changed, 1 insertions, 1 deletions

diff --git a/prettyml b/prettyml
index fac3ebb..12f1a8e 100755
--- a/prettyml
+++ b/prettyml
@@ -15,5 +15,5 @@ def inputs(args):
 
 objs = []
 for filename, f in inputs(sys.argv[1:]):
-    objs.append(yaml.safe_load(f))
+    objs.append(yaml.load(f, Loader=yaml.CSafeLoader))
 yaml.safe_dump_all(objs, stream=sys.stdout, indent=4, default_flow_style=False)