BLD: Bump the minimum nano-utils verion

Author: Bas van Beek

assertionlib/__init__.py

@@ -1,9 +1,14 @@
 """AssertionLib."""
 
 import os
+import sys
 from nanoutils import VersionInfo
 
-from .__version__ import __version__
+from .__version__ import __version__ as __version__
+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())
 
 from .ndrepr import NDRepr, aNDRepr
 from .manager import assertion, AssertionManager
@@ -12,9 +17,8 @@
 
 _README = os.path.join(__path__[0], 'README.rst')  # type: ignore
 __doc__ = load_readme(_README, encoding='utf-8')
-version_info = VersionInfo.from_str(__version__)
 
-del _README, load_readme, os, VersionInfo
+del _README, load_readme, os, sys, VersionInfo
 
 __author__ = "B. F. van Beek"
 __email__ = '[email protected]'

assertionlib/__version__.py

@@ -1,3 +1,3 @@
 """The AssertionLib version."""
 
-__version__ = '3.2.2'
+__version__ = '3.2.2.dev0'

setup.py

@@ -89,8 +89,8 @@
     ],
     python_requires='>=3.6',
     install_requires=[
-        'Nano-Utils>=0.4.1; python_version<"3.9"',
-        'Nano-Utils>=1.1.2; python_version>="3.9"',
+        'Nano-Utils>=0.4.1; python_version=="3.6"',
+        'Nano-Utils>=2.3.1; python_version>="3.7"',
     ],
     setup_requires=['pytest-runner'] + docs_require,
     tests_require=tests_require,