CLI: fix container list with non-ASCII characters

[fvennetier]

SUMMARY

Fix an issue with container list and non-ASCII characters.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

• Python API
• CLI

SDS VERSION

openio 4.8.2.dev12

ADDITIONAL INFORMATION

The bug manifested itself with something like:

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cliff/app.py", line 401, in run_subcommand
    result = cmd.run(parsed_args)
  File "/home/fvennetier/src/public_git/oio-sds/oio/cli/__init__.py", line 126, in run
    super(Lister, self).run(parsed_args)
  File "/usr/lib/python2.7/site-packages/cliff/display.py", line 119, in run
    self.produce_output(parsed_args, column_names, data)
  File "/usr/lib/python2.7/site-packages/cliff/lister.py", line 82, in produce_output
    parsed_args,
  File "/usr/lib/python2.7/site-packages/cliff/formatters/table.py", line 101, in emit_list
    self.add_rows(x, column_names, data)
  File "/usr/lib/python2.7/site-packages/cliff/formatters/table.py", line 80, in add_rows
    first_row = next(data_iter)
  File "/home/fvennetier/src/public_git/oio-sds/oio/cli/container/container.py", line 463, in <genexpr>
    for v in listing)
  File "/home/fvennetier/src/public_git/oio-sds/oio/common/utils.py", line 177, in cid_from_name
    hash_.update(v)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 3: ordinal not in range(128)

[codecov-io]

Codecov Report

Merging #1913 into 5.x will decrease coverage by 1.6%.
The diff coverage is 90.33%.

@@            Coverage Diff             @@
##              5.x    #1913      +/-   ##
==========================================
- Coverage   79.21%   77.61%   -1.59%     
==========================================
  Files         391      358      -33     
  Lines       73844    70126    -3718     
  Branches     7016     6797     -219     
==========================================
- Hits        58485    54424    -4061     
- Misses      15120    15570     +450     
+ Partials      239      132     -107

Impacted Files	Coverage Δ
tests/utils.py	95.2% <ø> (-0.56%)	⬇️
oio/common/utils.py	72.27% <100%> (+1.51%)	⬆️
oio/directory/indexer.py	73.39% <75%> (+0.06%)	⬆️
tests/functional/cli/container/test_container.py	65.76% <92%> (+0.83%)	⬆️
metautils/lib/utils_svc_policy.c	56.6% <0%> (-22.12%)	⬇️
meta2v2/meta2_dedup_utils.c	0% <0%> (-18.55%)	⬇️
metautils/lib/utils_resolv.c	49.63% <0%> (-14.81%)	⬇️
meta1v2/meta1_backend_references.c	73% <0%> (-14%)	⬇️
sqliterepo/election.c	80.01% <0%> (-9.8%)	⬇️
metautils/lib/utils_addr_info.c	49.34% <0%> (-9.33%)	⬇️
... and 102 more

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