Update imports

nbconvert/filters/ansi.py

@@ -13,6 +13,7 b''
 #-----------------------------------------------------------------------------
 
 import re
+from IPython.utils import coloransi
 
 #-----------------------------------------------------------------------------
 # Classes and functions

nbconvert/filters/strings.py

@@ -18,7 +18,6 b' import re'
 
 # Our own imports
 import textwrap
-from IPython.utils import coloransi
 #-----------------------------------------------------------------------------
 # Functions
 #-----------------------------------------------------------------------------