Merge pull request #11 from christopheredsall/enforce-minimum-python-…

…version Add minimum version check
Cambridge-ICCS · Jul 11, 2023 · 01fdc08 · 01fdc08
2 parents 8bab830 + e63bf82
commit 01fdc08
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diff --git a/README.md b/README.md
@@ -55,3 +55,5 @@ pip install pytest
 cd rpn-calc/src
 pytest
 ```
+
+The minimum required version of Python is 3.10.
diff --git a/rpn-calc/src/rpn_calc.py b/rpn-calc/src/rpn_calc.py
@@ -10,6 +10,9 @@
 if TYPE_CHECKING:
     from collections.abc import Iterable
 
+MIN_PYTHON = (3, 10)
+if sys.version_info < MIN_PYTHON:
+    sys.exit("Python %s.%s or later is required.\n" % MIN_PYTHON)
 
 def main(commands: "Iterable" = sys.stdin):
     '''
-Original file line number
+Diff line change
@@ Expand Up / @@ -55,3 +55,5 @@ pip install pytest @@
     cd rpn-calc/src
     pytest
     ```
+    The minimum required version of Python is 3.10.