Update _booster_classifier.py

Author: thierrymoudiki

mlsauce/booster/_booster_classifier.py

@@ -5,7 +5,10 @@
 from sklearn.base import ClassifierMixin
 
 import pyximport; pyximport.install()
-from . import _boosterc as boosterc
+try:
+    from . import _boosterc as boosterc
+except ImportError:
+    pass 
 
 from ..utils import cluster