Adding getopt to take input csv from args

q5/q5.py

 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
+import getopt
 import csv
+import sys
 
+filename = ''
 
-df = pd.read_csv("data.csv")
+try:
+    opts, args = getopt.getopt(sys.argv[1:], "", ["data="])
+    for arg, val in opts:
+        if arg == '--data':
+            filename = val
+except:
+    print('Invalid options specified')
+    exit(1)
+
+if not filename:
+    print('Invalid file specified')
+    exit()
+
+df = pd.read_csv(filename)
 
 count=1
 for instance_id, grp1 in df.groupby(['instance']):
-    if instance_id == 'instance-1' or True:
+    #if instance_id == 'instance-1':
+    if True:
         plt.figure(count)
         count = count + 1
         for algorithm, grp2 in grp1.groupby(['algorithm', 'epsilon']):