Use new srfit/version

Author: Tieqiong

src/diffpy/srfit/version.py

@@ -1,55 +1,26 @@
 #!/usr/bin/env python
 ##############################################################################
 #
-# diffpy.srfit      by DANSE Diffraction group
-#                   Simon J. L. Billinge
-#                   (c) 2008 The Trustees of Columbia University
-#                   in the City of New York.  All rights reserved.
+# (c) 2024 The Trustees of Columbia University in the City of New York.
+# All rights reserved.
 #
-# File coded by:    Chris Farrow
+# File coded by: Billinge Group members and community contributors.
 #
-# See AUTHORS.txt for a list of people who contributed.
-# See LICENSE_DANSE.txt for license information.
+# See GitHub contributions for a more detailed list of contributors.
+# https://github.com/diffpy/diffpy.srfit/graphs/contributors
+#
+# See LICENSE.rst for license information.
 #
 ##############################################################################
 
-"""
-Definition of __version__, __date__, __timestamp__, __git_commit__.
-
-Notes
------
-Variable `__gitsha__` is deprecated as of version 3.0.
-Use `__git_commit__` instead.
-"""
-
-__all__ = ['__date__', '__git_commit__', '__timestamp__', '__version__']
-
-import os.path
-
-from pkg_resources import resource_filename
-
-
-# obtain version information from the version.cfg file
-cp = dict(version='', date='', commit='', timestamp='0')
-fcfg = resource_filename(__name__, 'version.cfg')
-if not os.path.isfile(fcfg):    # pragma: no cover
-    from warnings import warn
-    warn('Package metadata not found, execute "./setup.py egg_info".')
-    fcfg = os.devnull
-with open(fcfg) as fp:
-    kwords = [[w.strip() for w in line.split(' = ', 1)]
-              for line in fp if line[:1].isalpha() and ' = ' in line]
-assert all(w[0] in cp for w in kwords), "received unrecognized keyword"
-cp.update(kwords)
+"""Definition of __version__."""
 
-__version__ = cp['version']
-__date__ = cp['date']
-__git_commit__ = cp['commit']
-__timestamp__ = int(cp['timestamp'])
+#  We do not use the other three variables, but can be added back if needed.
+#  __all__ = ["__date__", "__git_commit__", "__timestamp__", "__version__"]
 
-# TODO remove deprecated __gitsha__ in version 3.1.
-__gitsha__ = __git_commit__
+# obtain version information
+from importlib.metadata import version
 
-del cp, fcfg, fp, kwords
+__version__ = version("diffpy.srfit")
 
 # End of file