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change the format of 0 arity function terminal #643

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change the format of 0 arity function terminal #643

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16 changes: 13 additions & 3 deletions deap/gp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -220,15 +220,25 @@ 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
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):
Expand Down Expand Up @@ -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.
Expand Down