added 'by pair' functionality

profits/last_n_deals.py

@@ -4,14 +4,20 @@ import sqlite3
 
 try:
     amount_of_deals = sys.argv[1]
+    pair = None
+    if len(sys.argv) > 2:
+        pair = sys.argv[2]
 except Exception as e:
     print(e)
-    print("Usage: python3 last_n_deals.py int")
+    print("Usage: python3 last_n_deals.py int <pair>")
     sys.exit()
 
 connection = sqlite3.connect('profits_database.db')
 cursor = connection.cursor()
-cursor.execute(f'SELECT * FROM profits_table ORDER BY timestamp DESC LIMIT {amount_of_deals}')
+extra_query = ""
+if pair:
+    extra_query = f"WHERE pair = '{pair}'"
+cursor.execute(f'SELECT * FROM profits_table {extra_query} ORDER BY timestamp DESC LIMIT ?', (amount_of_deals,))
 deals = cursor.fetchall()
 connection.close()