drop Python3.8, add 3.12

doc/index.rst

@@ -12,14 +12,20 @@ X-ray DB: X-ray Reference Data in SQLite
 XrayDB provides atomic data, characteristic X-ray energies, and X-ray cross
 sections for the elements in an SQLite3 database, ``xraydb.sqlite``.  This file
 can be used directly with SQLite :cite:`sqlite` or from the many programming
-language that have interfaces to SQLite.  Some of the components of the
+language that have interfaces to SQLite.  A Python module providing an
+interface to this database is also provided.  Some of the components of the
 database hold arrays of numbers, which are stored as JSON-encoded strings, and
 will need to be decoded from JSON to be used.
 
-A Python module providing an interface to this database is also provided here.
-
 The current version of the XrayDB database is **9.2**, and the
-Python module is version |release|.
+Python module is version |release|, which can be installed with
+```
+pip install xraydb
+```
+
+The `XrayDB Github Page`_ has data sources, code, development discussions and
+issues.
+
 
 Values in XrayDB use the most common SI units for X-ray work: Cross sections
 are in cm^2/gr, and energies are in eV.  Energy-dependent data for
@@ -38,8 +44,6 @@ Some useful resources using this library include:
 
    * :ref:`periodic_tables` for printable Poster-sized Periodic tables of X-ray energies.
 
-   * `XrayDB Github Page`_ has data sources, code, development and issues.
-
    * `PDF Version of this documentation`_
 
 The project began with the data from the compilation of basic atomic

doc/installation.rst

@@ -18,7 +18,7 @@ Depending on your system and Python installation, you may need
 administrative privileges or to use `sudo` to install to a system-installed
 Python environment.
 
-.. Note:: The Python module supports Python 3.8 and above.
+.. Note:: The Python module supports Python 3.9 and above.
 
 
 Development Version

python/setup.cfg

@@ -25,11 +25,10 @@ classifiers =
     Topic :: Scientific/Engineering
     Topic :: Scientific/Engineering :: Visualization
     Programming Language :: Python
-    Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
 keywords = X-ray
 project_urls =
     Source =  https://github.com/xraypy/XrayDB
@@ -39,7 +38,7 @@ project_urls =
 [options]
 packages = find:
 include_package_data = True
-python_requires = >=3.8
+python_requires = >=3.9
 install_requires =
    numpy>=1.12
    scipy>=1.5