python: remove extraneous macroexpand call.

diff --git a/python/step8_macros.py b/python/step8_macros.py
index 016aae8..cdf7969 100644 (file)
--- a/python/step8_macros.py
+++ b/python/step8_macros.py
@@ -37,7 +37,7 @@ def is_macro_call(ast, env):
 def macroexpand(ast, env):
     while is_macro_call(ast, env):
         mac = env.get(ast[0])
-        ast = macroexpand(mac(*ast[1:]), env)
+        ast = mac(*ast[1:])
     return ast
 
 def eval_ast(ast, env):

diff --git a/python/step9_try.py b/python/step9_try.py
index 9cebe9c..80b7f5d 100644 (file)
--- a/python/step9_try.py
+++ b/python/step9_try.py
@@ -37,7 +37,7 @@ def is_macro_call(ast, env):
 def macroexpand(ast, env):
     while is_macro_call(ast, env):
         mac = env.get(ast[0])
-        ast = macroexpand(mac(*ast[1:]), env)
+        ast = mac(*ast[1:])
     return ast
 
 def eval_ast(ast, env):

diff --git a/python/stepA_mal.py b/python/stepA_mal.py
index 6f2f6da..2da3f71 100644 (file)
--- a/python/stepA_mal.py
+++ b/python/stepA_mal.py
@@ -37,7 +37,7 @@ def is_macro_call(ast, env):
 def macroexpand(ast, env):
     while is_macro_call(ast, env):
         mac = env.get(ast[0])
-        ast = macroexpand(mac(*ast[1:]), env)
+        ast = mac(*ast[1:])
     return ast
 
 def eval_ast(ast, env):