(#54) remove unnecessary packages

requirements.txt

@@ -1,27 +1,22 @@
-click==8.1.7
-contourpy==1.2.0
-cycler==0.12.1
-Deprecated==1.2.14
-execnet==2.1.1
-fonttools==4.45.1
 geographiclib==2.0
 geopy==2.4.1
+grip==4.6.2
 iniconfig==2.0.0
-kiwisolver==1.4.5
-matplotlib==3.8.2
-networkx==2.8.8
+Markdown==3.6
+Markdown-Editor==1.0.7
 numpy==1.26.2
-packaging==23.2
-pandas==2.1.3
-Pillow==10.1.0
+pandoc==2.3
+path-and-address==2.0.1
 pluggy==1.5.0
+plumbum==1.8.3
+ply==3.11
+Pygments==2.18.0
+pymdown-extensions==7.1
 pyparsing==3.1.1
 pytest==8.3.2
 pytest-xdist==3.6.1
 python-dateutil==2.8.2
 pytz==2023.3.post1
 six==1.16.0
-tabulate==0.8.10
 tsplib95==0.7.1
-tzdata==2023.3
-wrapt==1.16.0
+tzdata==2023.3

src/problems/single_objective/discrete/permutation/tsp.py

@@ -1,7 +1,6 @@
 from problems.abstract_problem import AbstractProblem
 import tsplib95
 from math import sqrt
-import pandas as pd
 from geopy.distance import geodesic
 import os
 
@@ -61,8 +60,13 @@ def f(self, x: list) -> float:
         node_name = []
         for i in range(1, 15):
             node_name.append(i)
-
-        Dist = pd.DataFrame(temp, columns=node_name, index=node_name)
+
+        Dist = {}
+        # Creating the dictionary of dictionaries
+        for i, row_name in enumerate(node_name):
+            Dist[row_name] = {}
+            for j, col_name in enumerate(node_name):
+                Dist[row_name][col_name] = temp[i][j]
 
         # objective
         fitness = 0.0