Merge pull request firmai#1 from cclauss/patch-1

Undefined name: from warnings import warn for line 203

Author: firmai

pandasvault/__init__.py

@@ -6,6 +6,7 @@
 from sklearn.metrics import roc_auc_score, average_precision_score, confusion_matrix
 from sklearn.metrics import log_loss, brier_score_loss, accuracy_score
 from math import sin, cos, sqrt, atan2, radians
+from warnings import warn
 
 
 ### TABLE PROCESSING