use PyMySQL library

PyMySQL has wider adoption and works with mariadb

Author: alexskr

umls2rdf.py

@@ -8,7 +8,7 @@
 import urllib.request, urllib.parse, urllib.error
 from string import Template
 import collections
-import mariadb
+import pymysql
 import pdb
 from functools import reduce
 from itertools import groupby
@@ -118,7 +118,7 @@ def get_code(reg,load_on_cuis):
     raise AttributeError("No code on reg [%s]"%("|".join(reg)))
 
 def __get_connection():
-    return mariadb.connect(host=conf.DB_HOST,user=conf.DB_USER,
+    return pymysql.connect(host=conf.DB_HOST,user=conf.DB_USER,
               passwd=conf.DB_PASS,db=conf.DB_NAME)
 
 def generate_semantic_types(con,with_roots=False):
@@ -746,4 +746,4 @@ def write_semantic_types(self,sem_types,fout):
         fout.close()
         sys.stdout.write("done!\n\n")
         sys.stdout.flush()
-    sys.stdout.flush()
+    sys.stdout.flush()