From b536b12b7bd7fa3886cc1f9d52c088ad54c9e99e Mon Sep 17 00:00:00 2001
From: Chris Ostrouchov <chris.ostrouchov@gmail.com>
Date: Mon, 15 Apr 2019 17:13:24 -0400
Subject: [PATCH] pythonPackages.pymbolic: init at 2018.1

---
 .../python-modules/pymbolic/default.nix       | 44 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 2 files changed, 46 insertions(+)
 create mode 100644 pkgs/development/python-modules/pymbolic/default.nix

diff --git a/pkgs/development/python-modules/pymbolic/default.nix b/pkgs/development/python-modules/pymbolic/default.nix
new file mode 100644
index 000000000000..0d13b377b13e
--- /dev/null
+++ b/pkgs/development/python-modules/pymbolic/default.nix
@@ -0,0 +1,44 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytools
+, pytest
+, six
+, sympy
+, pexpect
+, symengine
+}:
+
+buildPythonPackage rec {
+  pname = "pymbolic";
+  version = "2018.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a47d5524d6a3cdc8a028079ce632eeb45ceea7243272d234f250622087688207";
+  };
+
+  postConfigure = ''
+    substituteInPlace setup.py \
+      --replace "\"pytest>=2.3\"," ""
+  '';
+
+  checkInputs = [ sympy pexpect symengine pytest ];
+  propagatedBuildInputs = [
+    pytools
+    six
+  ];
+
+  # too many tests fail
+  doCheck = false;
+  checkPhase = ''
+    pytest test
+  '';
+
+  meta = with lib; {
+    description = "A package for symbolic computation";
+    homepage = https://mathema.tician.de/software/pymbolic;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9c8217a38bbb..a125a556b7d7 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2244,6 +2244,8 @@ in {
 
   pylama = callPackage ../development/python-modules/pylama { };
 
+  pymbolic = callPackage ../development/python-modules/pymbolic { };
+
   pymediainfo = callPackage ../development/python-modules/pymediainfo { };
 
   pyphen = callPackage ../development/python-modules/pyphen {};