import os
import io
from ConfigParser import ConfigParser as Config

_CFG_FILE = os.path.join(os.path.dirname(__file__), '..', '..', 'conf', 'sarcoma.cfg')

def sarcoma_location(sbj_id):
    return sarcoma_config().get('Tumor Location', sbj_id)

def sarcoma_config():
    if not hasattr(sarcoma_config, 'instance'):
        sarcoma_config.instance = Config()
        sarcoma_config.instance.read(_CFG_FILE)
    return sarcoma_config.instance

@@ -176,16 +176,114 @@
 on(s
+u
 bj
-_id
+ect
 ):%0A
+    %22%22%22%0A    @param subject: the XNAT Subject ID%0A    @return: the subject tumor location%0A    %22%22%22%0A%0A
     
@@ -333,13 +333,14 @@
 ', s
+u
 bj
-_id
+ect
 )%0A%0Ad
@@ -360,16 +360,101 @@
 nfig():%0A
+    %22%22%22%0A    @return: the sarcoma configuration%0A    @rtype: ConfigParser%0A    %22%22%22%0A    %0A
     if n
@@ -584,16 +584,21 @@
 G_FILE)%0A
+    %0A
     retu

Add method doc.