Fix generation of version in python code. Clean up Makefiles.

py/Makefile

@@ -1,5 +1,5 @@
 ifeq ($(PLATFORM), windows)
-	PY=py -
+	PY=py
 endif
 ifeq ($(PLATFORM), linux)
 	PY=python

py/src/pycodata/Makefile

@@ -37,8 +37,6 @@ constants_2018.py: $(AST_DIR)/codata_2018.toml
 constants_2022.py: $(AST_DIR)/codata_2022.toml
 	$(PY) $(GENPY) $< $@
 
-version.py: ../../VERSION
-
 clean:
 	rm -rf $(CPYTHON)
 	rm -rf $(PYTHON)

scripts/gen_python.py

@@ -66,11 +66,14 @@ def run(fpath_ast: str, fpath_code: str)->None:
     fast.close()
     fcode.close()
 
+def write_version()->None:
+
     version = None
     with open("../../VERSION", "r") as f:
         version = f.read().strip()
 
     fobj = open('version.py', "w")
+    fobj.write("\"\"\"Version\"\"\"" + newline)
     fobj.write(f"__version__ = \"{version:s}\"")
     fobj.close
 
@@ -82,3 +85,4 @@ def run(fpath_ast: str, fpath_code: str)->None:
     args = parser.parse_args() 
 
     run(args.ast, args.code)
+    write_version()