Make raise statements Python 3 compatible.

libmodernize.fixes.fix_raise

IPython/lib/display.py

@@ -280,8 +280,7 b' class FileLink(object):'
             text to append at the end of link [default: '<br>']
         """
         if isdir(path):
-            raise ValueError,\
-             ("Cannot display a directory using FileLink. "
+            raise ValueError("Cannot display a directory using FileLink. "
               "Use FileLinks to display '%s'." % path)
         self.path = path
         self.url_prefix = url_prefix
@@ -366,8 +365,7 b' class FileLinks(FileLink):'
 
         """
         if isfile(path):
-            raise ValueError,\
-             ("Cannot display a file using FileLinks. "
+            raise ValueError("Cannot display a file using FileLinks. "
               "Use FileLink to display '%s'." % path)
         self.included_suffixes = included_suffixes
         # remove trailing slashs for more consistent output formatting

IPython/utils/_tokenize_py2.py

@@ -308,7 +308,7 b' def generate_tokens(readline):'
 
         if contstr:                            # continued string
             if not line:
-                raise TokenError, ("EOF in multi-line string", strstart)
+                raise TokenError("EOF in multi-line string", strstart)
             endmatch = endprog.match(line)
             if endmatch:
                 pos = end = endmatch.end(0)
@@ -369,7 +369,7 b' def generate_tokens(readline):'
 
         else:                                  # continued statement
             if not line:
-                raise TokenError, ("EOF in multi-line statement", (lnum, 0))
+                raise TokenError("EOF in multi-line statement", (lnum, 0))
             continued = 0
 
         while pos < max: