substitute open(...) for file(...)

The file type is gone in py3k, and all file objects are under the new io hierarchy.  Since open(...) is supported
on both Python 2 and 3, use it instead of file in all instances. This isn't caught by 2to3.

IPython/core/magic.py

@@ -613,7 +613,7 b' Currently the magic system has the following functions:\\n"""'
             except IOError,msg:
                 print msg
                 return
-            page.page(self.shell.inspector.format(file(filename).read()))
+            page.page(self.shell.inspector.format(open(filename).read()))
 
     def magic_psearch(self, parameter_s=''):
         """Search for object in namespaces by wildcard.
@@ -1541,7 +1541,7 b' Currently the magic system has the following functions:\\n"""'
                   `dump_file`+'.',sys_exit
         if text_file:
             text_file = unquote_filename(text_file)
-            pfile = file(text_file,'w')
+            pfile = open(text_file,'w')
             pfile.write(output)
             pfile.close()
             print '\n*** Profile printout saved to text file',\

IPython/core/page.py

@@ -203,7 +203,7 b' def page(strng, start=0, screen_lines=0, pager_cmd=None):'
                 retval = 1
             else:
                 tmpname = tempfile.mktemp('.txt')
-                tmpfile = file(tmpname,'wt')
+                tmpfile = open(tmpname,'wt')
                 tmpfile.write(strng)
                 tmpfile.close()
                 cmd = "%s < %s" % (pager_cmd,tmpname)

IPython/external/path/_path.py

@@ -602,7 +602,7 b' class path(unicode):'
         u'\x85', u'\r\x85', and u'\u2028'.
 
         (This is slightly different from when you open a file for
-        writing with fopen(filename, "w") in C or file(filename, 'w')
+        writing with fopen(filename, "w") in C or open(filename, 'w')
         in Python.)
 
 

IPython/external/pexpect/_pexpect.py

@@ -352,7 +352,7 b' class spawnb(object):'
         Example log input and output to a file::
 
             child = pexpect.spawn('some_command')
-            fout = file('mylog.txt','w')
+            fout = open('mylog.txt','w')
             child.logfile = fout
 
         Example log to stdout::

IPython/frontend/terminal/interactiveshell.py

@@ -472,7 +472,7 b' class TerminalInteractiveShell(InteractiveShell):'
                 self.showtraceback()
             else:
                 try:
-                    f = file(err.filename)
+                    f = open(err.filename)
                     try:
                         # This should be inside a display_trap block and I
                         # think it is.

IPython/utils/PyColorize.py

@@ -281,7 +281,7 b' If no filename is given, or if filename is -, read standard input."""'
         stream = sys.stdin
     else:
         try:
-            stream = file(fname)
+            stream = open(fname)
         except IOError,msg:
             print >> sys.stderr, msg
             sys.exit(1)

IPython/zmq/kernelapp.py

@@ -251,7 +251,7 b' class KernelApp(BaseIPythonApplication):'
     def init_blackhole(self):
         """redirects stdout/stderr to devnull if necessary"""
         if self.no_stdout or self.no_stderr:
-            blackhole = file(os.devnull, 'w')
+            blackhole = open(os.devnull, 'w')
             if self.no_stdout:
                 sys.stdout = sys.__stdout__ = blackhole
             if self.no_stderr: