Add one more patch to fix a python 3.8 warning.

sympy-is.patch

@@ -0,0 +1,11 @@
+--- sympy-sympy-1.4/sympy/plotting/plot.py.orig	2019-09-13 11:48:00.776818488 -0600
++++ sympy-sympy-1.4/sympy/plotting/plot.py	2019-09-13 11:49:54.122923162 -0600
+@@ -526,7 +526,7 @@ class LineOver1DRangeSeries(Line2DBaseSe
+                 else:
+                     list_segments.append([p, q])
+ 
+-            if self.xscale is 'log':
++            if self.xscale == 'log':
+                 self.start=np.log10(self.start)
+                 self.end=np.log10(self.end)
+ 

sympy.spec

@@ -1,6 +1,6 @@
 Name:           sympy
 Version:        1.4
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A Python library for symbolic mathematics
 License:        BSD
 URL:            http://sympy.org/
@@ -22,6 +22,8 @@ Patch5:         0001-Modify-literal-comparisons-as-per-python3.8-guidelines.patc
 # Fix more compatibility issues with Python3.8.
 # https://github.com/sympy/sympy/commit/a193dcf9ed0715b3a0336e7d91460f338686c015
 Patch6:         0001-Fix-more-compatibility-issues-with-Python3.8.patch
+# Fix one more use of "is" instead of "==" for python 3.8
+Patch7:         %{name}-is.patch
 
 BuildArch:      noarch
 
@@ -202,6 +204,9 @@ xvfb-run -a -n $dnum \
 %{_docdir}/%{name}-doc/html
 
 %changelog
+* Fri Sep 13 2019 Jerry James <loganjerry@gmail.com> - 1.4-5
+- Add one more patch to fix a python 3.8 warning
+
 * Sat Aug 24 2019 Robert-André Mauchin <zebob.m@gmail.com>  - 1.4-4
 - Add patches to fix build with Python 3.8 and Numpy 1.17