Python 3 removed file() in favor of open().

theano/gof/callcache.py

@@ -8,7 +8,7 @@ class CallCache(object):
         try:
             if filename is None:
                 raise IOError('bad filename') #just goes to except
-            f = file(filename, 'r')
+            f = open(filename, 'r')
             self.cache = cPickle.load(f)
             f.close()
         except IOError:
@@ -20,7 +20,7 @@ class CallCache(object):
 
         #backport
         #filename = self.filename if filename is None else filename
-        f = file(filename, 'w')
+        f = open(filename, 'w')
         cPickle.dump(self.cache, f)
         f.close()
 

theano/sandbox/cuda/nvcc_compiler.py

@@ -247,7 +247,7 @@ class NVCC_compiler(object):
                 lib_dirs.append(python_lib)
 
         cppfilename = os.path.join(location, 'mod.cu')
-        cppfile = file(cppfilename, 'w')
+        cppfile = open(cppfilename, 'w')
 
         _logger.debug('Writing module C++ code to %s', cppfilename)
 
@@ -401,7 +401,7 @@ class NVCC_compiler(object):
 
         if py_module:
             #touch the __init__ file
-            file(os.path.join(location, "__init__.py"), 'w').close()
+            open(os.path.join(location, "__init__.py"), 'w').close()
             return dlimport(lib_filename)