move dbs setup to a separate file

dbs.py

@@ -0,0 +1,16 @@
+from sqlalchemy import create_engine, MetaData, Table
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.sql import select
+import os
+
+num_proc = 30
+pswd = os.environ["SQLPW"]
+url = "mysql://sophie:"+pswd+"@localhost/ghtorrent-2018-03?charset=utf8mb4"
+engine = create_engine(url, pool_size = num_proc, pool_recycle = 3600)
+Session = sessionmaker(bind = engine)
+metadata = MetaData(engine)
+commits = Table("commits", metadata, autoload=True)
+projects = Table("projects", metadata, autoload=True)
+conns = engine.connect()
+session = Session()
+

project_team_famil.py

@@ -1,8 +1,9 @@
 from utils import *
 import numpy as np
 from datetime import datetime
+from dbs import *
 
-def get_team_famil(p, session, commits, contributors, contr_projs_win,
+def get_team_famil(p, contributors, contr_projs_win,
                     proj_contrs_count, win):
   contributors = list(contributors)
   team_size = len(contributors)