[Bug 1473533] Re: CountryNameDict function trying to parse UTF-8 iso3166.tab as US-ASCII

[Colin Watson]

** Also affects: python-tz (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: python-tz (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: python-tz (Ubuntu Vivid)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1473533

Title:
  CountryNameDict function trying to parse UTF-8 iso3166.tab as US-ASCII

Status in pytz:
  Fix Released
Status in python-tz package in Ubuntu:
  Fix Released
Status in python-tz source package in Precise:
  New
Status in python-tz source package in Trusty:
  New
Status in python-tz source package in Vivid:
  New
Status in python-tz package in Debian:
  New

Bug description:
  Since tzdata-2015e there are UTF-8 characters in iso3166.tab, see:
  http://mm.icann.org/pipermail/tz/2015-May/022258.html
  http://mm.icann.org/pipermail/tz/2015-June/022306.html

  pytz/__init__.py:_CountryNameDict(LazyDict) is using:
          zone_tab = open_resource('iso3166.tab')
          try:
              for line in zone_tab.readlines():
                  line = line.decode('US-ASCII')

  to read it and fails on AX, CI, RE lines, using UTF-8 fixes the issues
  and should work OK even with older tzdata releases.

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