Index: ../trunk-jpl/src/m/dev/devpath.py
===================================================================
--- ../trunk-jpl/src/m/dev/devpath.py	(revision 23754)
+++ ../trunk-jpl/src/m/dev/devpath.py	(revision 23755)
@@ -1,16 +1,16 @@
 #!/usr/bin/env python
-import os,sys
+import os, sys
 import warnings
 
 #Recover ISSM_DIR and USERNAME
 ISSM_DIR = os.getenv('ISSM_DIR')
 USERNAME = os.getenv('USER')
-JPL_SVN  = os.getenv('JPL_SVN')
-if(ISSM_DIR==None):
+JPL_SVN = os.getenv('JPL_SVN')
+if ISSM_DIR is None:
     raise NameError('"ISSM_DIR" environment variable is empty! You should define ISSM_DIR in your .cshrc or .bashrc!')
 
 #Go through src/m and append any directory that contains a *.py file to PATH
-for root,dirs,files in os.walk(ISSM_DIR+ '/src/m'):
+for root, dirs, files in os.walk(ISSM_DIR + '/src/m'):
     if '.svn' in dirs:
         dirs.remove('.svn')
         for file in files:
@@ -25,11 +25,11 @@
 sys.path.append(ISSM_DIR + '/lib')
 sys.path.append(ISSM_DIR + '/src/wrappers/python/.libs')
 # If using clusters, we need to have the path to the cluster settings directory
-if(JPL_SVN!=None):
+if JPL_SVN is not None:
     if os.path.exists(JPL_SVN + '/usr/' + USERNAME):
         sys.path.append(JPL_SVN + '/usr/' + USERNAME)
     else:
-        warnings.warn('cluster settings should be in, '+ JPL_SVN +'/usr/' + USERNAME)
+        warnings.warn('cluster settings should be in, {}/usr/{}'.format(JPL_SVN, USERNAME))
 
 #Manual imports for commonly used functions
 from runme import runme		#first because plotmodel may fail
@@ -42,4 +42,4 @@
 #c.InteractiveShellApp.exec_lines.append('print "Warning: disable autoreload in startup.py to improve performance." ')
 
 print("\n  ISSM development path correctly loaded")
-print(("Current path is {}\n\n".format(ISSM_DIR)))
+print("Current path is {}\n\n".format(ISSM_DIR))