[Octave-bug-tracker] [bug #61134] [octave forge] (symbolic) SyntaxWarning: "is" with a literal

[Nicholas Jankowski]

Follow-up Comment #5, bug #61134 (project octave):

@mmuetzel, did this make it into 6.4.0? I'm seeing this message in a fresh
copy on windows with the bundled symbolic:


>> pkg load symbolic
>> syms x
Symbolic pkg v2.9.0:
/usr/lib/python3.8/site-packages/mpmath/ctx_mp_python.py:892:
SyntaxWarning: "is" with a literal. Did you mean "=="?
  if other is 0:
/usr/lib/python3.8/site-packages/mpmath/ctx_mp_python.py:986: SyntaxWarning:
"is" w
ith a literal. Did you mean "=="?
  if other is 0:
/usr/lib/python3.8/site-packages/sympy/solvers/diophantine.py:3186:
SyntaxWarning:
"is" with a literal. Did you mean "=="?
  if feasible is 1:  # it's prime and k == 2
/usr/lib/python3.8/site-packages/sympy/plotting/plot.py:509: SyntaxWarning:
"is" wi
th a literal. Did you mean "=="?
  if self.xscale is 'log':
/usr/lib/python3.8/site-packages/sympy/plotting/plot.py:529: SyntaxWarning:
"is" wi
th a literal. Did you mean "=="?
  if self.xscale is 'log':
/usr/lib/python3.8/site-packages/sympy/plotting/plot.py:542: SyntaxWarning:
"is" wi
th a literal. Did you mean "=="?
  if self.xscale is 'log':
/usr/lib/python3.8/site-packages/sympy/plotting/plot.py:549: SyntaxWarning:
"is" wi
th a literal. Did you mean "=="?
  if self.xscale is 'log':
Python communication link active, SymPy v1.4.


interestingly enough, this only occurs the first time between reboots.  if I
just unload the package, close octave, and reopen, the messages don't occur
and I just get the expected last 'link active' line.  tried on multiple
machines, and both behaved the same.

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