2025.05.16

changelog.txt

@@ -1,5 +1,13 @@
+2025.05.16:
+. Added exception handling when removing a trader.
+. Minor variable renaming.
+
+2025.05.12:
+. Improved config file handling when switching to long or short.
+. If the config file does not exist, it creates it.
+
 2025.05.05:
-. Forced Telegram message when a quit flag is raised.
+. Forced Telegram message when quit flag is raised.
 
 2025.05.04:
 . Simplified unwrapped_add_pair.

config_handler.py

@@ -37,13 +37,18 @@ class ConfigHandler:
         self.config_dictionary = self.default_config_dictionary.copy()        
         
         #Loads from disk the config file (if it exists)
-        self.load_from_file()
+        if self.load_from_file()==1:
+            #If the config file does not exist, write a new one with the default values
+            self.save_to_file()
         if config_dict is not None:
             self.config_dictionary = {**self.config_dictionary, **config_dict}
             self.save_to_file()
         
 
 
+    def reset_to_default(self):
+        self.config_dictionary = self.default_config_dictionary.copy()
+        return 0
     
     def get_pair(self):
         return self.config_dictionary["pair"]

main.py

@@ -16,7 +16,7 @@ import exchange_wrapper
 import trader
 
 
-version = "2025.05.05"
+version = "2025.05.16"
 
 '''
 Color definitions. If you want to change them, check the reference at https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
@@ -244,7 +244,10 @@ def restart_pair_no_json(base: str, quote: str) -> int:
                     elif order["symbol"]==f"{base}/{quote}" and not x.config.get_is_short() and order["side"]=="buy":
                         broker.logger.log_this(f"Cancelling old buy orders",2,f"{base}/{quote}")
                         broker.cancel_order(order["id"],order["symbol"])                                        
-                running_instances.remove(x)
+                try:
+                    running_instances.remove(x)
+                except ValueError:
+                    broker.logger.log_this(f"Instance {x.config.get_pair()} not found in running_instances.",1,x.config.get_pair())                    
                 add_instance(base,quote)
                 return 0
         return 1
@@ -274,7 +277,10 @@ def main_loop():
                 broker.rewrite_config_file()
                 if x.config.get_pair() in worker_status:
                     del(worker_status[x.config.get_pair()])
-                running_instances.remove(x)
+                try:
+                    running_instances.remove(x)
+                except ValueError:
+                    broker.logger.log_this(f"Instance {x.config.get_pair()} not found in running_instances.",1,x.config.get_pair())
 
         #Adds pending traders
         if bool(instances_to_add):

trader.py

@@ -496,19 +496,6 @@ class trader:
         self.pause = True
         self.status.set_pause_reason("switch_to_short")
 
-        #Read the config file
-        self.broker.logger.log_this("Reading config file",2,self.config.get_pair())
-        try:
-            with open(f"configs/{self.base}{self.quote}.json","r") as f:
-                old_config = json.load(f)    
-        except Exception as e:
-            self.broker.logger.log_this(f"Error. Can't read the config file. Can't switch mode. Exception: {e}",1,self.config.get_pair())
-            self.pause = False
-            self.status.set_pause_reason("")
-            return 1
-        
-        #Calculate if there is enough base and, if so, calculate the optimal order size
-
         #Fetch the real amount of available base
         self.broker.logger.log_this(f"Fetching available {self.base}",2,self.config.get_pair())
         free_base = self.fetch_free_base()
@@ -566,21 +553,16 @@ class trader:
         #Modify config file accordingly
         self.broker.logger.log_this("Modifying config file and saving a backup",2,self.config.get_pair())
         try:
-            with open(f"configs/{self.base}{self.quote}.bak","w") as c:
+            self.config.save_to_file(f"configs/{self.base}{self.quote}.bak")
-                c.write(json.dumps(old_config, indent=4)) 
+            self.config.set_is_short(True)
-            old_config["is_short"] = True
+            self.config.save_to_file()
-            #old_config["order_size"] = optimal_order_size       #Now calculated on-the-fly at the start of every deal
-            #old_config["no_of_safety_orders"] = amount_of_so
-            #4. Write the config file
-            with open(f"configs/{self.base}{self.quote}.json","w") as c:
-                c.write(json.dumps(old_config, indent=4))
             self.broker.logger.log_this("Config file updated",2,self.config.get_pair())
         except Exception as e:
             self.broker.logger.log_this(f"Error. Can't write the config file. Exception: {e}",1,self.config.get_pair())
             #self.pause = False
             return 1
         self.status.set_stop_when_profit(False)
-        self.config.set_is_short(True)
+        #self.config.set_is_short(True)
         self.broker.logger.log_this("Done configuring. Starting bot...",2,self.config.get_pair())
         return 0
 
@@ -591,12 +573,12 @@ class trader:
         Only does it if the current bot was previously a long one.
         '''
 
-        #Check if it's not already long
         if not self.config.get_is_short():
-            self.broker.logger.log_this("Can't switch a long trader to long, there's nothing to do",1,self.config.get_pair())
+            self.broker.logger.log_this("Trader already in long mode, nothing to do",1,self.config.get_pair())
             return 1
-
         self.broker.logger.log_this("Attempting to switch to long bot",0,self.config.get_pair())
+
+        #Check old_long data
         if not ignore_old_long and self.status.get_old_long()=={}:
             self.broker.logger.log_this("Can't find old long info on status_dict, searching for oldlong file",1,self.config.get_pair())
             try:
@@ -624,21 +606,21 @@ class trader:
         except Exception as e:
             self.broker.logger.log_this(f"Error in cancel_order while cancelling take profit order. Exception: {e}",1,self.config.get_pair())
 
-        #Liquidate base
+        #Sell all base currency
         self.liquidate_base(ignore_profits=ignore_old_long, already_received_quote=already_received_quote)
 
-        #switch config files and set self.config.get_is_short() to False
+        #Rewrite config file (if it exists)
-        try:
+        if os.path.isfile(f"configs/{self.base}{self.quote}.bak") and os.path.isfile(f"configs/{self.base}{self.quote}.json"):
             with open(f"configs/{self.base}{self.quote}.bak") as c:
                 old_config = json.load(c)
             with open(f"configs/{self.base}{self.quote}.json","w") as c:
                 c.write(json.dumps(old_config, indent=4))
-            self.config.load_from_file()
+            if self.config.load_from_file()==1:
-            self.config.set_is_short(False) #This probably is not needed
+                self.config.reset_to_default()
-        except Exception as e:
+        else:
-            self.broker.logger.log_this(f"Exception in switch_to_long while switching config files: {e}",1,self.config.get_pair())
+            self.broker.logger.log_this("Config/backup file does not exist",1,self.config.get_pair())
-            self.quit = True
+            self.config.reset_to_default()
-            return 1
+            self.config.save_to_file()
 
         #Remove old_long file (if it exists)
         if os.path.isfile(f"status/{self.base}{self.quote}.oldlong"):
@@ -958,13 +940,13 @@ class trader:
                 amount = (order_size/mid_price)*2   #Extra margin to avoid surprises.
             else:
                 amount = order_size*2
-            first_price = order_book["asks"][0][0]
+            top_price = order_book["asks"][0][0]
             for x in order_book["asks"]:
                 suma += x[1]
                 if suma>=amount:
                     last_price = x[0]
                     break
-            if last_price-first_price>first_price*threshold:
+            if last_price-top_price>top_price*threshold:
                 #Threshold exceeded
                 return True
             return False