Remove unused import fallback for Python < 3.3
@@ -25,11 +25,7 @@ import sys
from ctypes.util import find_library
import ctypes
from xml.etree import ElementTree
-
-try:
- from shlex import quote as escape_string_shell
-except ImportError:
- from pipes import quote as escape_string_shell # noqa: F401 @UnusedImport
+from shlex import quote as escape_string_shell # noqa: F401 @UnusedImport
_BYTE_FACTOR = 1000 # byte in kilobyte
