From cd0054b3d0ae76ae9a1cd8eb66ac52c875a8ec56 Mon Sep 17 00:00:00 2001
From: SimpleArt <71458112+SimpleArt@users.noreply.github.com>
Date: Thu, 10 Jun 2021 21:56:21 -0400
Subject: [PATCH] Implemented __hash__

---
 EasyGA/structure/chromosome.py | 11 +++++++++++
 EasyGA/structure/population.py | 11 +++++++++++
 2 files changed, 22 insertions(+)

diff --git a/EasyGA/structure/chromosome.py b/EasyGA/structure/chromosome.py
index bed2c49..7806821 100644
--- a/EasyGA/structure/chromosome.py
+++ b/EasyGA/structure/chromosome.py
@@ -107,6 +107,17 @@ class Chromosome():
         return (to_gene(gene) in self.gene_list)
 
 
+    def __hash__(self):
+        """
+        Returns hash(self).
+        Allows the user to use
+                {chromosome}
+                {chromosome: x}
+        or any other thing requiring hashes with chromosomes.
+        """
+        return hash(tuple(self))
+
+
     def __eq__(self, chromosome):
         """Returns self == chromosome, True if all genes match."""
         return self.gene_list == chromosome.gene_list
diff --git a/EasyGA/structure/population.py b/EasyGA/structure/population.py
index 5369ca4..abb2822 100644
--- a/EasyGA/structure/population.py
+++ b/EasyGA/structure/population.py
@@ -159,6 +159,17 @@ class Population:
         return (to_chromosome(chromosome) in self.chromosome_list)
 
 
+    def __hash__(self):
+        """
+        Returns hash(self).
+        Allows the user to use
+                {population}
+                {population: x}
+        or any other thing requiring hashes with populations.
+        """
+        return hash(tuple(self))
+
+
     def __eq__(self, population):
         """Returns self == population, True if all chromosomes match."""
         return self.chromosome_list == population.chromosome_list