raw strings in python regex; ignore generated transation files

Author: Sergey Fukanchik

Author: funny-falcon

Diff for: .gitignore

@@ -21,6 +21,9 @@
 # Binaries
 /pg_probackup
 
+# Generated translated file
+/po/ru.mo
+
 # Generated by test suite
 /regression.diffs
 /regression.out

Diff for: tests/helpers/ptrack_helpers.py

@@ -1685,7 +1685,7 @@ def version_to_num(self, version):
             parts.append('0')
         num = 0
         for part in parts:
-            num = num * 100 + int(re.sub("[^\d]", "", part))
+            num = num * 100 + int(re.sub(r"[^\d]", "", part))
         return num
 
     def switch_wal_segment(self, node):
@@ -2038,7 +2038,7 @@ def __init__(self, cmd, env, attach=False):
 
         # Get version
         gdb_version_number = re.search(
-            b"^GNU gdb [^\d]*(\d+)\.(\d)",
+            br"^GNU gdb [^\d]*(\d+)\.(\d)",
             gdb_version)
         self.major_version = int(gdb_version_number.group(1))
         self.minor_version = int(gdb_version_number.group(2))