diff --git a/meta/recipes-kernel/perf/perf/sort-pmuevents.py b/meta/recipes-kernel/perf/perf/sort-pmuevents.py
index 0362f2d8fa..0a87e553ab 100755
--- a/meta/recipes-kernel/perf/perf/sort-pmuevents.py
+++ b/meta/recipes-kernel/perf/perf/sort-pmuevents.py
@@ -36,10 +36,10 @@ with open(infile, 'r') as file:
 preamble_regex = re.compile( '^(.*?)^(struct|const struct|static struct|static const struct)', re.MULTILINE | re.DOTALL )
 
 preamble = re.search( preamble_regex, data )
-struct_block_regex = re.compile( '^(struct|const struct|static struct|static const struct).*?(\w+) (.*?)\[\] = {(.*?)^};', re.MULTILINE | re.DOTALL )
-field_regex =  re.compile( '{.*?},', re.MULTILINE | re.DOTALL )
-cpuid_regex = re.compile( '\.cpuid = (.*?),', re.MULTILINE | re.DOTALL )
-name_regex = re.compile( '\.name = (.*?),', re.MULTILINE | re.DOTALL )
+struct_block_regex = re.compile(r'^(struct|const struct|static struct|static const struct).*?(\w+) (.*?)\[\] = {(.*?)^};', re.MULTILINE | re.DOTALL )
+field_regex =  re.compile(r'{.*?},', re.MULTILINE | re.DOTALL )
+cpuid_regex = re.compile(r'\.cpuid = (.*?),', re.MULTILINE | re.DOTALL )
+name_regex = re.compile(r'\.name = (.*?),', re.MULTILINE | re.DOTALL )
 
 # create a dictionary structure to store all the structs, their
 # types and then their fields.
diff --git a/meta/recipes-rt/rt-tests/files/rt_bmark.py b/meta/recipes-rt/rt-tests/files/rt_bmark.py
index 3b84447a0f..2a4eed412f 100755
--- a/meta/recipes-rt/rt-tests/files/rt_bmark.py
+++ b/meta/recipes-rt/rt-tests/files/rt_bmark.py
@@ -265,7 +265,7 @@ cmd = ("cyclictest",
        "-d", str(interval_delta),
        "-l", str(loop_count)
        )
-rex = re.compile(b"C:\s*(\d+).*Min:\s*(\d+).*Avg:\s*(\d+).*Max:\s*(\d+)")
+rex = re.compile(r"C:\s*(\d+).*Min:\s*(\d+).*Avg:\s*(\d+).*Max:\s*(\d+)")
 
 def run_cyclictest_once():
         res = subprocess.check_output(cmd)