update deps

requirements.in

@@ -6,6 +6,11 @@ treelib<2
 SQLAlchemy
 psycopg2
 
+
+# tools
+pympler
+psutil
+
 # Test
 werkzeug
 

requirements.txt

@@ -5,9 +5,11 @@
 #    pip-compile --output-file requirements.txt requirements.in
 #
 lxml==3.6.0
-numpy==1.12.1             # via pandas
+numpy==1.13.0             # via pandas
 pandas==0.20.2
+psutil==5.2.2
 psycopg2==2.7.1
+pympler==0.5
 python-dateutil==2.6.0    # via pandas
 pytz==2017.2              # via pandas, spyne
 six==1.10.0               # via python-dateutil