pkgs/sage-conf: Make 'python3 -m sage_conf' work like 'sage-config'

pkgs/sage-conf/_sage_conf/__main__.py

@@ -1,22 +1,19 @@
 # Entry point 'sage-config'.  It does not depend on any packages.
 
-from sage_conf import *
-
 def _main():
     from argparse import ArgumentParser
     from sys import exit, stdout
-    parser = ArgumentParser()
+
+    import sage_conf
+
+    parser = ArgumentParser(prog='sage-config')
     parser.add_argument('--version', help="show version", action="version",
-                       version='%(prog)s ' + VERSION)
+                       version='%(prog)s ' + sage_conf.VERSION)
     parser.add_argument("VARIABLE", nargs='?', help="output the value of VARIABLE")
     args = parser.parse_args()
-    d = globals()
     if args.VARIABLE:
-        stdout.write('{}\n'.format(d[args.VARIABLE]))
+        stdout.write('{}\n'.format(getattr(sage_conf, args.VARIABLE)))
     else:
-        for k, v in d.items():
+        for k in dir(sage_conf):
             if not k.startswith('_'):
-                stdout.write('{}={}\n'.format(k, v))
-
-if __name__ == "__main__":
-    _main()
+                stdout.write('{}={}\n'.format(k, getattr(sage_conf, k)))

pkgs/sage-conf/sage_conf.py

@@ -1,2 +1,6 @@
 from _sage_conf._conf import *
 from _sage_conf.__main__ import _main
+
+
+if __name__ == "__main__":
+    _main()