I'm seeing the following test errors when a resent sympy git version is installed. Removing sympy from the system
solves the problem. I don't think it's an IPython bug but since it was quite hard to track down I will report it anyway.
======================================================================
ERROR: test suite for <module 'IPython.core.tests.test_compilerop' from '/usr/local/lib/python2.7/dist-packages/IPython/core/tests/test_compilerop.pyc'>
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 208, in run
self.setUp()
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 291, in setUp
self.setupContext(ancestor)
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 314, in setupContext
try_run(context, names)
File "/usr/lib/python2.7/dist-packages/nose/util.py", line 478, in try_run
return func()
File "/usr/local/lib/python2.7/dist-packages/IPython/core/tests/test_compilerop.py", line 55, in setUp
nt.assert_equal(sys.getdefaultencoding(), "utf-8" if py3compat.PY3 else "ascii")
AssertionError: 'utf-8' != 'ascii'
======================================================================
ERROR: test suite for <module 'IPython.core.tests.test_history' from '/usr/local/lib/python2.7/dist-packages/IPython/core/tests/test_history.pyc'>
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 208, in run
self.setUp()
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 291, in setUp
self.setupContext(ancestor)
File "/usr/lib/python2.7/dist-packages/nose/suite.py", line 314, in setupContext
try_run(context, names)
File "/usr/lib/python2.7/dist-packages/nose/util.py", line 478, in try_run
return func()
File "/usr/local/lib/python2.7/dist-packages/IPython/core/tests/test_history.py", line 26, in setUp
nt.assert_equal(sys.getdefaultencoding(), "utf-8" if py3compat.PY3 else "ascii")
AssertionError: 'utf-8' != 'ascii'
It appears that the import of sympy modifies the sys default encoding from ascii to utf-8.
This happens when the test suit is run as it checks for sympy in IPython.testing.decorators.
Steps to reproduce:
Install sympy master
sys.getdefaultencoding is ascii
import sympy
sys.getdefaultencoding is now utf-8
Note that this doesn't happen with sympy0.7.1 and also not with older dev. versions of sympy
(more than a few month I believe but I haven't bisected it. )
Observed on Ubuntu 12.04 with ipython 13 beta
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