fix bug (#760)

visualdl/server/lib.py

@@ -166,7 +166,8 @@ def get_pr_curve(log_reader, run, tag):
 
 def get_pr_curve_step(log_reader, run, tag=None):
     run = log_reader.name2tags[run] if run in log_reader.name2tags else run
-    tag = get_pr_curve_tags(log_reader)[run][0] if tag is None else tag
+    run2tag = get_pr_curve_tags(log_reader)
+    tag = run2tag['tags'][run2tag['runs'].index(run)][0]
     log_reader.load_new_data()
     records = log_reader.data_manager.get_reservoir("pr_curve").get_items(
         run, decode_tag(tag))

visualdl/version.py

@@ -13,4 +13,4 @@
 # limitations under the License.
 # =======================================================================
 
-vdl_version = '2.0.0'
+vdl_version = '2.0.1'