New package: DXT Explorer tool (#31007)

* DXT Explorer tool

* Remove comments

* Fix style

* Syntax change

* Fix syntax

* remove dependencies, update version number, fix recipe

* fix syntax

* fixes

* change version order

var/spack/repos/builtin/packages/dxt-explorer/package.py

@@ -0,0 +1,30 @@
+# Copyright 2013-2022 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.package import *
+
+
+class DxtExplorer(PythonPackage):
+    """
+    DXT Explorer is an interactive web-based log analysis tool to visualize
+    Darshan DXT logs and help understand the I/O behavior of applications.
+    """
+
+    homepage = "http://dxt-explorer.readthedocs.io"
+    git = "https://github.com/hpc-io/dxt-explorer"
+    pypi = "dxt-explorer/dxt-explorer-0.3.tar.gz"
+
+    maintainers = ["jeanbez", "sbyna"]
+
+    version("develop", branch="develop")
+
+    version("0.3", sha256="fb73947b737c327154d03eeb0744c86774263878b893b365094ce4af8ac60b8b")
+
+    depends_on("r", type=("run"))
+
+    depends_on("darshan-util", type=("run"))
+
+    depends_on("python@3.6:", type=("build", "run"))
+    depends_on("py-pandas", type=("build", "run"))