Merge pull request #2738 from mdboom/pager-encoding

Unicode content crashes the pager (console)

IPython/core/page.py

@@ -29,6 +29,7 b' from __future__ import print_function'
 
 import os
 import re
+import subprocess
 import sys
 import tempfile
 
@@ -41,6 +42,7 b' from IPython.utils.data import chop'
 from IPython.utils import io
 from IPython.utils.process import system
 from IPython.utils.terminal import get_terminal_size
+from IPython.utils import py3compat
 
 
 #-----------------------------------------------------------------------------
@@ -219,9 +221,12 b' def page(strng, start=0, screen_lines=0, pager_cmd=None):'
                 # if I use popen4, things hang. No idea why.
                 #pager,shell_out = os.popen4(pager_cmd)
                 pager = os.popen(pager_cmd,'w')
-                pager.write(strng)
-                pager.close()
-                retval = pager.close()  # success returns None
+                try:
+                    pager_encoding = pager.encoding or sys.stdout.encoding
+                    pager.write(py3compat.cast_bytes_py2(
+                        strng, encoding=pager_encoding))
+                finally:
+                    retval = pager.close()
             except IOError as msg:  # broken pipe when user quits
                 if msg.args == (32,'Broken pipe'):
                     retval = None
@@ -338,4 +343,3 b" def snip_print(str,width = 75,print_full = 0,header = ''):"
         if raw_input(header+' Snipped. View (y/n)? [N]').lower() == 'y':
             page(str)
     return snip
-