BF: os.get_terminal_width might error in non-interactive envs, use raw string

for regexp

fslinstaller.py

@@ -701,8 +701,10 @@ class Progress(object):
         """
         # os.get_terminal_size added in python
         # 3.3, so we try it but fall back to tput
-        if hasattr(os, 'get_terminal_size'):
+        try:
             return os.get_terminal_size()[0]
+        except Exception:
+            pass
 
         try:
             result = sp.check_output(('tput', 'cols'))

test/__init__.py

@@ -156,4 +156,4 @@ def mock_input(*responses):
 
 def strip_ansi_escape_sequences(text):
     """Does what function name says it does. """
-    return re.sub('\x1b\[[0-9;]*m', '', text)
+    return re.sub(r'\x1b\[[0-9;]*m', '', text)