+if hasattr(shutil, 'get_terminal_size'): # Python >= 3.3
+ compat_get_terminal_size = shutil.get_terminal_size
+else:
+ _terminal_size = collections.namedtuple('terminal_size', ['columns', 'lines'])
+
+ def compat_get_terminal_size():
+ columns = compat_getenv('COLUMNS', None)
+ if columns:
+ columns = int(columns)
+ else:
+ columns = None
+ lines = compat_getenv('LINES', None)
+ if lines:
+ lines = int(lines)
+ else:
+ lines = None
+
+ try:
+ sp = subprocess.Popen(
+ ['stty', 'size'],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ out, err = sp.communicate()
+ lines, columns = map(int, out.split())
+ except Exception:
+ pass
+ return _terminal_size(columns, lines)
+