The BDFL has retired! Long live the FLUFL (Friendly Language Uncle For Life)!

2 files changed, 32 insertions, 0 deletions

diff --git a/Lib/__future__.py b/Lib/__future__.py
index 9156459..5ff282f 100644
--- a/Lib/__future__.py
+++ b/Lib/__future__.py
@@ -70,6 +70,7 @@ CO_FUTURE_ABSOLUTE_IMPORT = 0x4000 # perform absolute imports by default
 CO_FUTURE_WITH_STATEMENT  = 0x8000   # with statement
 CO_FUTURE_PRINT_FUNCTION  = 0x10000   # print function
 CO_FUTURE_UNICODE_LITERALS = 0x20000 # unicode string literals
+CO_FUTURE_BARRY_AS_BDFL = 0x40000
 
 class _Feature:
     def __init__(self, optionalRelease, mandatoryRelease, compiler_flag):
@@ -126,3 +127,7 @@ print_function = _Feature((2, 6, 0, "alpha", 2),
 unicode_literals = _Feature((2, 6, 0, "alpha", 2),
                             (3, 0, 0, "alpha", 0),
                             CO_FUTURE_UNICODE_LITERALS)
+
+barry_as_FLUFL = _Feature((3, 1, 0, "alpha", 2),
+                         (3, 9, 0, "alpha", 0),
+                         CO_FUTURE_BARRY_AS_BDFL)
diff --git a/Lib/test/test_flufl.py b/Lib/test/test_flufl.py
new file mode 100644
index 0000000..5a709bc
--- /dev/null
+++ b/Lib/test/test_flufl.py
@@ -0,0 +1,27 @@
+import __future__
+import unittest
+
+class FLUFLTests(unittest.TestCase):
+
+    def test_barry_as_bdfl(self):
+        code = "from __future__ import barry_as_FLUFL; 2 {0} 3"
+        compile(code.format('<>'), '<BDFL test>', 'exec',
+                __future__.CO_FUTURE_BARRY_AS_BDFL)
+        self.assertRaises(SyntaxError, compile, code.format('!='),
+                            '<FLUFL test>', 'exec',
+                            __future__.CO_FUTURE_BARRY_AS_BDFL)
+
+    def test_guido_as_bdfl(self):
+        code = '2 {0} 3'
+        compile(code.format('!='), '<BDFL test>', 'exec')
+        self.assertRaises(SyntaxError, compile, code.format('<>'),
+                            '<FLUFL test>', 'exec')
+
+
+def test_main():
+    from test.support import run_unittest
+    run_unittest(FLUFLTests)
+
+
+if __name__ == '__main__':
+    test_main()