fix : math.comb dependency removed.

pyrgg/engines/erdos_reyni.py

@@ -2,8 +2,6 @@
 """Erdős-Rényi Engine module."""
 import datetime
 from random import shuffle
-from math import comb
-from itertools import permutations
 from pyrgg.params import ENGINE_MENU, PYRGG_LOGGER_ERROR_MESSAGE
 
 LOGGER_TEMPLATE = """{0}
@@ -32,12 +30,13 @@ def edge_gen(n, m, direct):
     edge_dic = {}
     weight_list = []
     edge_mold = []
+    TOTAL_EDGE = (n * (n - 1)) // 2
     if direct:
-        m = min(m, 2 * comb(n, 2))
-        edge_mold = m * [1] + (2 * comb(n, 2) - m) * [0]
+        m = min(m, 2 * TOTAL_EDGE)
+        edge_mold = m * [1] + (2 * TOTAL_EDGE - m) * [0]
     else:
-        m = min(m, comb(n, 2))
-        edge_mold = m * [1] + (comb(n, 2) - m) * [0]
+        m = min(m, TOTAL_EDGE)
+        edge_mold = m * [1] + (TOTAL_EDGE - m) * [0]
     shuffle(edge_mold)
     for i in range(1, n + 1):
         edge_dic[i] = []