Traceback (most recent call last):

 "/home/nevermind/.conda/envs/kershner27_01/bin/conda", line 6, in <module>
sys.exit(main())

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/cli/main.py", line 120, in main
exit_code = args_func(args, p)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/cli/main.py", line 130, in args_func
exit_code = args.func(args, p)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/cli/main_install.py", line 78, in execute
install(args, parser, 'install')

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/cli/install.py", line 407, in install
execute_actions(actions, index, verbose=not args.quiet)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/plan.py", line 599, in execute_actions
inst.execute_instructions(plan, index, verbose)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/instructions.py", line 135, in execute_instructions
cmd(state, arg)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/instructions.py", line 59, in EXTRACT_CMD
extract(arg)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/install.py", line 859, in extract
exp_backoff_fn(os.rename, temp_path, path)

 "/usr/local/anaconda/2.1.0/lib/python2.7/site-packages/conda/install.py", line 237, in exp_backoff_fn
return fn(*args)OSError: [Errno 13] Permission denied
After running the script, typing "dat" yields "1" in Spyder 2.1.4, but in Spyder 2.1.5 and later, yields "Traceback (most recent call last):

 "<ipython console>", line 1, in <module>NameError: name 'dat' is not defined" What version of the product are you using? On what operating system? Reproduced on Windows 7 Pro, 64-bit using Spyder 2.1.5, 2.1.6, but is working fine on Spyder 2.1.2 and 2.1.4 (presumably 2.1.3 as well, but not tested), so a change in 2.1.5 seems to have broken something.
Python is from pythonxy 2.7.2.0 (Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)]).
IPython version is 0.10.2 in all cases.