BLD: Bump the minimum nano-utils version

CAT/__init__.py

@@ -6,9 +6,13 @@
 __author__ = "Bas van Beek"
 __email__ = '[email protected]'
 
+import sys
 from nanoutils import VersionInfo
-version_info = VersionInfo.from_str(__version__)
-del VersionInfo
+if sys.version_info >= (3, 7):
+    version_info = VersionInfo.from_str(__version__)
+else:
+    version_info = VersionInfo._make(int(i) for i in __version__.split(".") if i.isnumeric())
+del VersionInfo, sys
 
 from .logger import logger
 from .jobs import (

CAT/__version__.py

@@ -1,3 +1,3 @@
 """The **CAT** version."""
 
-__version__ = '1.0.1'
+__version__ = '1.0.1.dev0'

README.rst

@@ -20,9 +20,9 @@
 .. image:: https://img.shields.io/badge/python-3.10-blue.svg
    :target: https://docs.python.org/3.10/
 
-##############################
-Compound Attachment Tool 1.0.1
-##############################
+########################
+Compound Attachment Tool
+########################
 
 **CAT** is a collection of tools designed for the construction of various chemical compounds.
 Further information is provided in the documentation_.

setup.py

@@ -88,7 +88,8 @@
     test_suite='tests',
     python_requires='>=3.6',
     install_requires=[
-        'Nano-Utils>=0.4.3',
+        'Nano-Utils>=0.4.3; python_version=="3.6"',
+        'Nano-Utils>=2.3.1; python_version>="3.7"',
         'numpy>=1.15.0',
         'scipy>=0.19.1',
         'pandas>=0.23.0',