From 49623be99953493d9da699a5c52f4ce7cef5cb52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9Cliningbo=E2=80=9D?= <“liningbo@gmail.com”>
Date: Sun, 5 Jun 2022 00:24:49 +0800
Subject: [PATCH] change the format of 0 arity function terminal
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Signed-off-by: “liningbo” <“liningbo@gmail.com”>
---
 deap/gp.py | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/deap/gp.py b/deap/gp.py
index 44bd8bd07..48455a8ba 100644
--- a/deap/gp.py
+++ b/deap/gp.py
@@ -220,7 +220,11 @@ class Terminal(object):
     def __init__(self, terminal, symbolic, ret):
         self.ret = ret
         self.value = terminal
-        self.name = str(terminal)
+        #self.name = str(terminal)
+        if callable(self.value):
+            self.name = self.value.__name__
+        else:
+            self.name = str(terminal)
         self.conv_fct = str if symbolic else repr
 
     @property
@@ -228,7 +232,13 @@ def arity(self):
         return 0
 
     def format(self):
-        return self.conv_fct(self.value)
+        if callable(self.value):
+            return (self.name + "()")
+        else:
+            return self.conv_fct(self.value)
+
+    #def format(self):
+    #    return self.conv_fct(self.value)
 
     def __eq__(self, other):
         if type(self) is type(other):
@@ -368,7 +378,7 @@ def addTerminal(self, terminal, ret_type, name=None):
 
         if name is not None:
             self.context[name] = terminal
-            terminal = name
+            #terminal = name
             symbolic = True
         elif terminal in (True, False):
             # To support True and False terminals with Python 2.