Code refactoring (moving import ctypes to be used only when needed)

lib/core/common.py

@@ -9,7 +9,6 @@ import codecs
 import contextlib
 import cookielib
 import copy
-import ctypes
 import httplib
 import inspect
 import logging
@@ -2209,6 +2208,8 @@ def runningAsAdmin():
 
         isAdmin = isinstance(_, (int, float, long)) and _ == 0
     elif IS_WIN:
+        import ctypes
+
         _ = ctypes.windll.shell32.IsUserAnAdmin()
 
         isAdmin = isinstance(_, (int, float, long)) and _ == 1

thirdparty/ansistrm/ansistrm.py

@@ -1,7 +1,6 @@
 #
 # Copyright (C) 2010-2012 Vinay Sajip. All rights reserved. Licensed under the new BSD license.
 #
-import ctypes
 import logging
 import os
 import re
@@ -84,6 +83,8 @@ class ColorizingStreamHandler(logging.StreamHandler):
         }
 
         def output_colorized(self, message):
+            import ctypes
+
             parts = self.ansi_esc.split(message)
             write = self.stream.write
             h = None

thirdparty/magic/magic.py

@@ -16,10 +16,6 @@ Usage:
 
 import sys
 import os.path
-import ctypes
-import ctypes.util
-
-from ctypes import c_char_p, c_int, c_size_t, c_void_p
 
 class MagicException(Exception):
     pass
@@ -104,6 +100,12 @@ def from_buffer(buffer, mime=False):
 
 try:
     libmagic = None
+
+    import ctypes
+    import ctypes.util
+
+    from ctypes import c_char_p, c_int, c_size_t, c_void_p
+
     # Let's try to find magic or magic1
     dll = ctypes.util.find_library('magic') or ctypes.util.find_library('magic1')