UnicodeEncodeError in st_delete() when object has non-ascii char

I don't see this error on current master, but that might be related to different terminal settings.

Could you share your terminal settings?

Hi
What setting are you interested in ?

I have:
LANG=en_US.UTF-8
GDM_LANG=en_US
LANGUAGE=en_US
LC_TIME=fr_FR.UTF-8
LC_NAME=fr_FR.UTF-8

I can reproduce with python-swiftclient-2.4.0, I have checkouted swift-master on the 16th of April. The 4 commands I provided are enough to repro the issue. It's likely it's a terminal setting issue.

Reproduced on my SAIO:

````
swift@saio-1:~/swiftclient$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise
swift@saio-1:~/swiftclient$ git log --pretty=oneline -n 1
ea6d2bf74d8cf7f5faeff3d3052265db717db99e Merge "Add socket-level read timeout parameter"
swift@saio-1:~/swiftclient$ swift upload --segment-threads 10 --segment-size $((1024*1024)) éà /tmp/ç
/tmp/ç
swift@saio-1:~/swiftclient$ swift delete éà
Traceback (most recent call last):
  File "/usr/local/bin/swift", line 10, in <module>
    execfile(__file__)
  File "/home/swift/swiftclient/bin/swift", line 24, in <module>
    sys.exit(main())
  File "/home/swift/swiftclient/swiftclient/shell.py", line 1309, in main
    globals()['st_%s' % args[0]](parser, argv[1:], output)
  File "/home/swift/swiftclient/swiftclient/shell.py", line 139, in st_delete
    output_manager.print_msg('{0}{1}'.format(p, a))
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe7' in position 4: ordinal not in range(128)
````

A fix has been proposed https://review.openstack.org/#/c/176945/

Related fix proposed to branch: master
Review: https://review.openstack.org/184336

Reviewed: https://review.openstack.org/176945
Committed: https://git.openstack.org/cgit/openstack/python-swiftclient/commit/?id=bb252130ac2f332110172b8e2094dc629c8a896b
Submitter: Jenkins
Branch: master

commit bb252130ac2f332110172b8e2094dc629c8a896b
Author: Tim Burke <email address hidden>
Date: Mon May 18 10:14:09 2015 -0700

    Always decode command-line arguments as UTF-8

    There was always an implicit assumption that they were UTF-8 before, and
    by converting them to unicode we close another hole allowing raw bytes
    to appear in user-facing messages.

    Closes-Bug: #1431866
    Change-Id: If2e41d9a592c3ad02818e9c6f0959fd4b73cd0e0

Reviewed: https://review.openstack.org/184336
Committed: https://git.openstack.org/cgit/openstack/python-swiftclient/commit/?id=ce569f46517e10f2ce0d27e9ee0a922ad1d84e2f
Submitter: Jenkins
Branch: master

commit ce569f46517e10f2ce0d27e9ee0a922ad1d84e2f
Author: Tim Burke <email address hidden>
Date: Mon May 18 08:05:02 2015 -0700

    Centralize header parsing

    All response headers are now exposed as unicode objects. Any
    url-encoding is interpretted as UTF-8; if that causes decoding to fail,
    the url-encoded form is returned.

    As a result, deleting DLOs with unicode characters will no longer raise
    UnicodeEncodeErrors under Python 2.

    Related-Bug: #1431866
    Change-Id: Idb111c5bf3ac1f5ccfa724b3f4ede8f37d5bfac4