Update lis.py

2021-06-17 15:50:11 -03:00 · 2021-06-17 15:50:11 -03:00 · 3606b1d411
commit 3606b1d411
parent e5173fb72b
1 changed files with 4 additions and 1 deletions
--- a/18-context-mngr/lispy/py3.10/lis.py
+++ b/18-context-mngr/lispy/py3.10/lis.py
@ -149,7 +149,10 @@ def evaluate(x: Expression, env: Environment) -> Any:
        case ['quote', exp]:                            # (quote exp)
            return exp
        case ['if', test, conseq, alt]:                 # (if test conseq alt)
-            exp = conseq if evaluate(test, env) else alt
+            if evaluate(test, env):
+                exp = conseq
+            else:
+                exp = alt
            return evaluate(exp, env)
        case ['lambda', parms, body]:                   # (lambda (parm...) body)
            return Procedure(parms, body, env)