[Bug 1878985] [NEW] focal/python3-netaddr : SyntaxWarning: "is not" with a literal

[Harry Coin]

Public bug reported:

Setting up python3-netaddr (0.7.19-3) ...
/usr/lib/python3/dist-packages/netaddr/strategy/__init__.py:189: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if word_sep is not '':

'is' and == are not the same, tests will fail that succeeded on some x86 cpython platforms for other than 8 bit literals.
These bugs are picked up on python3.8, included with focal, not seen on 3.7/eoan.

** Affects: python-netaddr (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: python-netaddr (Debian)
     Importance: Unknown
         Status: Unknown

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https://bugs.launchpad.net/bugs/1878985

Title:
  focal/python3-netaddr : SyntaxWarning: "is not" with a literal

Status in python-netaddr package in Ubuntu:
  Fix Released
Status in python-netaddr package in Debian:
  Unknown

Bug description:
  Setting up python3-netaddr (0.7.19-3) ...
  /usr/lib/python3/dist-packages/netaddr/strategy/__init__.py:189: SyntaxWarning: "is not" with a literal. Did you mean "!="?
    if word_sep is not '':

  'is' and == are not the same, tests will fail that succeeded on some x86 cpython platforms for other than 8 bit literals.
  These bugs are picked up on python3.8, included with focal, not seen on 3.7/eoan.

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