diff --git a/ats/atsMachines/lcBatch.py b/ats/atsMachines/lcBatch.py
index 48ee1aa..b54bfe0 100644
--- a/ats/atsMachines/lcBatch.py
+++ b/ats/atsMachines/lcBatch.py
@@ -167,7 +167,7 @@ def getBaseHostName(hostname):
     "get base host name without digits"
     host = realHostName(hostname)
     # get non-digit part of node name
-    wordpat = re.compile('(^[a-zA-Z_]*)(\d*)').search
+    wordpat = re.compile(r'(^[a-zA-Z_]*)(\d*)').search
     basehost = wordpat(host).group(1)
     return basehost
 
diff --git a/ats/atsMachines/slurmProcessorScheduled.py b/ats/atsMachines/slurmProcessorScheduled.py
index 8a01b89..4b1d776 100644
--- a/ats/atsMachines/slurmProcessorScheduled.py
+++ b/ats/atsMachines/slurmProcessorScheduled.py
@@ -56,7 +56,7 @@ def init(self):
         tarray=tstr.split() 
         SlurmProcessorScheduled.slurm_version_str=tarray[1]
         log('SLURM VERSION STRING', SlurmProcessorScheduled.slurm_version_str)
-        tarray=re.split('[\.\-]',SlurmProcessorScheduled.slurm_version_str)
+        tarray=re.split(r'[\.\-]',SlurmProcessorScheduled.slurm_version_str)
         SlurmProcessorScheduled.slurm_version_int=(int(tarray[0]) * 1000) + (int(tarray[1]) * 100) + (int(tarray[2]))
         log('SLURM VERSION NUMBER', SlurmProcessorScheduled.slurm_version_int)
 
diff --git a/ats/reportutils.py b/ats/reportutils.py
index 8f74710..4578c95 100644
--- a/ats/reportutils.py
+++ b/ats/reportutils.py
@@ -102,7 +102,7 @@ def atsrToJUnit(atsrFile=None,junitOut=None,build=True ):
 def cleanTestCaseName( test ):
     '''Remove all special chars from the name so it's readable to junit parser.  '''
     import re
-    pattern = re.compile('([^\s\w]|_)+')
+    pattern = re.compile(r'([^\s\w]|_)+')
     testname = pattern.sub('', test.name)
     return testname