New package: py-pyprecice (#19558)

* added initial version of package and patch for precice-bindings

* updated package name

* cleanup in script; added version requirement to cython

* Remove unnecessary part of patch

* cleanup package

* added initial version of package and patch for precice-bindings

* updated package name

* cleanup in script; added version requirement to cython

* Remove unnecessary part of patch

* cleanup package

* update style of package

* reformatting to fullfil style requirements

* reformatting again

* fixing some of the issues mention in PR; working on fixing install stage

* readded py-wheel as dependency

Co-authored-by: Benjamin Rüth <benjamin.rueth@tum.de>

var/spack/repos/builtin/packages/py-pyprecice/deactivate-version-check-via-pip.patch

@@ -0,0 +1,32 @@
+diff --git a/setup.py b/setup.py
+index 9282639..d69c285 100644
+--- a/setup.py
++++ b/setup.py
+@@ -1,15 +1,20 @@
+ import os
+ import subprocess
+ import warnings
+-from packaging import version
+-import pip
++from setuptools._vendor.packaging import version
++   
++# If installed with pip we need to check its version
++try:
++    import pip
++    if version.parse(pip.__version__) < version.parse("19.0"):
++        # version 19.0 is required, since we are using pyproject.toml for definition of build-time depdendencies. See https://pip.pypa.io/en/stable/news/#id209
++        warnings.warn("You are using pip version {}. However, pip version > 19.0 is recommended. You can continue with the installation, but installation problems can occour. Please refer to https://github.com/precice/python-bindings#build-time-dependencies-cython-numpy-defined-in-pyprojecttoml-are-not-installed-automatically for help.".format(pip.__version__))
+ 
+-if version.parse(pip.__version__) < version.parse("19.0"):
+-    # version 19.0 is required, since we are using pyproject.toml for definition of build-time depdendencies. See https://pip.pypa.io/en/stable/news/#id209
+-    warnings.warn("You are using pip version {}. However, pip version > 19.0 is recommended. You can continue with the installation, but installation problems can occour. Please refer to https://github.com/precice/python-bindings#build-time-dependencies-cython-numpy-defined-in-pyprojecttoml-are-not-installed-automatically for help.".format(pip.__version__))
++    if version.parse(pip.__version__) < version.parse("10.0.1"):        
++        warnings.warn("You are using pip version {}. However, pip version > 10.0.1 is required. If you continue with installation it is likely that you will face an error. See https://github.com/precice/python-bindings#version-of-pip3-is-too-old".format(pip.__version__))
++except:
++    warnings.warn("Assuming that you are not using pip!")
+ 
+-if version.parse(pip.__version__) < version.parse("10.0.1"):        
+-    warnings.warn("You are using pip version {}. However, pip version > 10.0.1 is required. If you continue with installation it is likely that you will face an error. See https://github.com/precice/python-bindings#version-of-pip3-is-too-old".format(pip.__version__))
+ 
+ from enum import Enum
+ from setuptools import setup

var/spack/repos/builtin/packages/py-pyprecice/package.py

@@ -0,0 +1,59 @@
+# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class PyPyprecice(PythonPackage):
+    """
+    This package provides python language bindings for the
+    C++ library preCICE.
+    """
+
+    homepage = "https://www.precice.org"
+    git = "https://github.com/precice/python-bindings.git"
+    url = "https://github.com/precice/python-bindings/archive/v2.0.0.1.tar.gz"
+    maintainers = ["ajaust", "BenjaminRueth"]
+
+    # Always prefer final version of release candidate
+    version("develop", branch="develop")
+    version("2.1.1.1", sha256="972f574549344b6155a8dd415b6d82512e00fa154ca25ae7e36b68d4d2ed2cf4")
+    version("2.1.0.1", sha256="ac5cb7412c6b96b08a04fa86ea38e52d91ea739a3bd1c209baa93a8275e4e01a")
+    version("2.0.2.1", sha256="c6fca26332316de041f559aecbf23122a85d6348baa5d3252be4ddcd5e94c09a")
+    version("2.0.1.1", sha256="2791e7c7e2b04bc918f09f3dfca2d3371e6f8cbb7e57c82bd674703f4fa00be7")
+    version("2.0.0.2", sha256="5f055d809d65ec2e81f4d001812a250f50418de59990b47d6bcb12b88da5f5d7")
+    version("2.0.0.1", sha256="96eafdf421ec61ad6fcf0ab1d3cf210831a815272984c470b2aea57d4d0c9e0e")
+
+    # Import module as a test
+    import_modules = ["precice"]
+
+    patch("deactivate-version-check-via-pip.patch")
+
+    variant("mpi", default=True, description="Enables MPI support")
+
+    depends_on("mpi", when="+mpi")
+    depends_on("precice@2.1.1", when="@2.1.1.1:2.1.1.99")
+    depends_on("precice@2.1.0", when="@2.1.0.1:2.1.0.99")
+    depends_on("precice@2.0.2", when="@2.0.2.1:2.0.2.99")
+    depends_on("precice@2.0.1", when="@2.0.1.1:2.0.1.99")
+    depends_on("precice@2.0.0", when="@2.0.0.1:2.0.0.99")
+
+    depends_on("python@3:", type=("build", "run"))
+    depends_on("py-setuptools", type="build")
+    depends_on("py-wheel", type="build")
+    depends_on("py-numpy", type=("build", "run"))
+    depends_on("py-mpi4py", type=("build", "run"), when="+mpi")
+    depends_on("py-cython@0.29:", type=("build"))
+
+    phases = ['build_ext', 'install']
+
+    def build_ext_args(self, spec, prefix):
+        return [
+            "--include-dirs=" + spec["precice"].headers.directories[0],
+            "--library-dirs=" + spec["precice"].libs.directories[0]
+        ]
+
+    def install(self, spec, prefix):
+        self.setup_py("install", "--prefix={0}".format(prefix))