Added and applied ruff

Makefile

@@ -0,0 +1,4 @@
+lint:
+	@ruff check . --fix
+	@ruff format .
+.PHONY: lint

examples/calculator.py

@@ -1,20 +1,20 @@
 from snet import sdk
 
-config = sdk.config.Config(private_key="YOUR_PRIVATE_KEY",
-                               eth_rpc_endpoint=f"https://sepolia.infura.io/v3/YOUR_INFURA_KEY",
-                               concurrency=False,
-                               force_update=False)
-
-operators = {
-    "+": "add",
-    "-": "sub",
-    "*": "mul",
-    "/": "div"
-}
+config = sdk.config.Config(
+    private_key="YOUR_PRIVATE_KEY",
+    eth_rpc_endpoint="https://sepolia.infura.io/v3/YOUR_INFURA_KEY",
+    concurrency=False,
+    force_update=False,
+)
+
+operators = {"+": "add", "-": "sub", "*": "mul", "/": "div"}
 
 snet_sdk = sdk.SnetSDK(config)
-calc_client = snet_sdk.create_service_client(org_id="26072b8b6a0e448180f8c0e702ab6d2f",
-                                             service_id="Exampleservice", group_name="default_group")
+calc_client = snet_sdk.create_service_client(
+    org_id="26072b8b6a0e448180f8c0e702ab6d2f",
+    service_id="Exampleservice",
+    group_name="default_group",
+)
 
 
 def parse_expression(expression):
@@ -23,12 +23,16 @@
         raise Exception(f"Invalid expression '{expression}'. Three items required.")
 
     if elements[1] not in ["+", "-", "*", "/"]:
-        raise Exception(f"Invalid expression '{expression}'. Operation must be '+' or '-' or '*' or '/'.")
+        raise Exception(
+            f"Invalid expression '{expression}'. Operation must be '+' or '-' or '*' or '/'."
+        )
     try:
         a = float(elements[0])
         b = float(elements[2])
     except ValueError:
-        raise Exception(f"Invalid expression '{expression}'. Operands must be integers or floating point numbers.")
+        raise Exception(
+            f"Invalid expression '{expression}'. Operands must be integers or floating point numbers."
+        )
     op = elements[1]
 
     return a, b, op
@@ -54,4 +58,3 @@
 
 if __name__ == "__main__":
     main()
-

examples/console_app.py

@@ -6,7 +6,6 @@
 transactions and service calls. So, to run the application, you will need to change the values in 'config'.
 """
 
-
 from snet import sdk
 
 
@@ -17,7 +16,7 @@
     The list is got from the MPE contract using 'get_organization_list'.
     """
     print("Organizations:")
-    print(*map(lambda x: '\t' + x, snet_sdk.get_organization_list()), sep="\n")
+    print(*map(lambda x: "\t" + x, snet_sdk.get_organization_list()), sep="\n")
 
 
 def list_services_for_org():
@@ -28,7 +27,10 @@
     """
     org_id = input("Enter organization id: ").strip()
     print("Services:")
-    print(*map(lambda x: '\t' + x, snet_sdk.get_services_list(org_id=org_id)), sep="\n")
+    print(
+        *map(lambda x: "\t" + x, snet_sdk.get_services_list(org_id=org_id)),
+        sep="\n",
+    )
 
 
 def create_service_client():
@@ -41,7 +43,9 @@
     service_id = input("Enter service id: ").strip()
     group_name = input("Enter payment group name: ").strip()
 
-    service = snet_sdk.create_service_client(org_id=org_id, service_id=service_id, group_name=group_name)
+    service = snet_sdk.create_service_client(
+        org_id=org_id, service_id=service_id, group_name=group_name
+    )
     initialized_services.append(service)
 
     global active_service
@@ -57,7 +61,7 @@
     global active_commands
     print("Available commands:")
     for command in active_commands.items():
-        print(f'\t{command[0]} - {command[1][1]}')
+        print(f"\t{command[0]} - {command[1][1]}")
 
 
 def list_initialized_services():
@@ -94,8 +98,10 @@
     """
     global active_service
     if active_service is None:
-        print("No initialized services!\n"
-              "Please enter 'service' to go to the service menu and then enter 'add' to add a service.")
+        print(
+            "No initialized services!\n"
+            "Please enter 'service' to go to the service menu and then enter 'add' to add a service."
+        )
         return None
 
     method_name = input("Enter method name: ")
@@ -135,8 +141,10 @@
     """
     global active_service
     if active_service is None:
-        print("No initialized services!\n"
-              "Please enter 'service' to go to the service menu and then enter 'add' to add a service.")
+        print(
+            "No initialized services!\n"
+            "Please enter 'service' to go to the service menu and then enter 'add' to add a service."
+        )
         return None
     print(active_service.get_services_and_messages_info_as_pretty_string())
 
@@ -146,7 +154,9 @@
     The function, which is called when the user enters the command 'balance' in the main menu.
     Prints the balances of FET and MPE. It gets the balances using 'balance_of' and 'escrow_balance'.
     """
-    account_balance = snet_sdk.account.token_contract.functions.balanceOf(snet_sdk.account.address).call()
+    account_balance = snet_sdk.account.token_contract.functions.balanceOf(
+        snet_sdk.account.address
+    ).call()
     escrow_balance = snet_sdk.account.escrow_balance()
 
     print(f"FET balance: {account_balance}")
@@ -168,8 +178,10 @@
     Prints the current block number. It gets the block number using 'get_current_block_number'.
     """
     if active_service is None:
-        print("No initialized services!\n"
-              "Please enter 'service' to go to the service menu and then enter 'add' to add a service.")
+        print(
+            "No initialized services!\n"
+            "Please enter 'service' to go to the service menu and then enter 'add' to add a service."
+        )
         return None
     print("Current block number: ", active_service.get_current_block_number())
 
@@ -183,13 +195,18 @@
     to work, so there is a warning for the user about this at the beginning.
     """
     if active_service is None:
-        print("No initialized services!\n"
-              "Please enter 'service' to go to the service menu and then enter 'add' to add a service.")
+        print(
+            "No initialized services!\n"
+            "Please enter 'service' to go to the service menu and then enter 'add' to add a service."
+        )
         return None
 
-    is_continue = input("""Updating the channel list makes sense if the channel data has changed through other entry points. 
+    is_continue = (
+        input("""Updating the channel list makes sense if the channel data has changed through other entry points. 
 This procedure may take several minutes. 
-Continue? (y/n): """).strip() == 'y'
+Continue? (y/n): """).strip()
+        == "y"
+    )
     if not is_continue:
         return None
 
@@ -200,7 +217,14 @@
     for service in initialized_services:
         load_channels = service.load_open_channels()
         for channel in load_channels:
-            channels.append((channel, service.org_id, service.service_id, service.group['group_name']))
+            channels.append(
+                (
+                    channel,
+                    service.org_id,
+                    service.service_id,
+                    service.group["group_name"],
+                )
+            )
 
     print("Channels updated! Enter 'list' to print the updated list.")
 
@@ -214,13 +238,19 @@
     """
     global active_service
     global channels
-    additions = False
     if active_service is None:
-        print("No initialized services! The channel can only be opened for the service!\n"
-              "Please enter 'service' to go to the service menu and then enter 'add' to add a service.")
+        print(
+            "No initialized services! The channel can only be opened for the service!\n"
+            "Please enter 'service' to go to the service menu and then enter 'add' to add a service."
+        )
         return None
     else:
-        is_continue = input("The new channel will be opened for the active service. Continue? (y/n): ").strip() == 'y'
+        is_continue = (
+            input(
+                "The new channel will be opened for the active service. Continue? (y/n): "
+            ).strip()
+            == "y"
+        )
         if not is_continue:
             return None
 
@@ -230,7 +260,12 @@
     is_deposit = False
     if balance < amount:
         print(f"Insufficient balance!\n\tCurrent MPE balance: {balance}\n\tAmount to put: {amount}")
-        is_deposit = input("Would you like to deposit needed amount of FET tokens in advance? (y/n): ").strip() == 'y'
+        is_deposit = (
+            input(
+                "Would you like to deposit needed amount of FET tokens in advance? (y/n): "
+            ).strip()
+            == "y"
+        )
         if not is_deposit:
             print("Channel is not opened!")
             return None
@@ -241,7 +276,14 @@
         channel = active_service.open_channel(amount=amount, expiration=expiration)
     else:
         channel = active_service.deposit_and_open_channel(amount=amount, expiration=expiration)
-    channels.append((channel, active_service.org_id, active_service.service_id, active_service.group['group_name']))
+    channels.append(
+        (
+            channel,
+            active_service.org_id,
+            active_service.service_id,
+            active_service.group["group_name"],
+        )
+    )
 
 
 def list_channels():
@@ -253,12 +295,14 @@
     print("ORGANIZATION_ID    SERVICE_ID    GROUP_NAME    CHANNEL_ID    AMOUNT    EXPIRATION")
     for channel in channels:
         channel[0].sync_state()
-        print(channel[1],
-              channel[2],
-              channel[3],
-              channel[0].channel_id,
-              channel[0].state['available_amount'],
-              channel[0].state['expiration'])
+        print(
+            channel[1],
+            channel[2],
+            channel[3],
+            channel[0].channel_id,
+            channel[0].state["available_amount"],
+            channel[0].state["expiration"],
+        )
 
 
 def add_funds():
@@ -271,7 +315,9 @@
     exists = False
     for channel in channels:
         if channel[0].channel_id == channel_id:
-            amount = int(input("Enter amount of FET tokens in cogs to add to the channel: ").strip())
+            amount = int(
+                input("Enter amount of FET tokens in cogs to add to the channel: ").strip()
+            )
             channel[0].add_funds(amount)
             exists = True
     if not exists:
@@ -304,10 +350,12 @@
 SDK configuration that is configured by the application provider.
 To run the application you need to change the 'private_key', 'eth_rpc_endpoint' and 'identity_name' values.
 """
-config = sdk.config.Config(private_key="YOUR_PRIVATE_KEY",
-                               eth_rpc_endpoint=f"https://sepolia.infura.io/v3/YOUR_INFURA_KEY",
-                               concurrency=False,
-                               force_update=False)
+config = sdk.config.Config(
+    private_key="YOUR_PRIVATE_KEY",
+    eth_rpc_endpoint="https://sepolia.infura.io/v3/YOUR_INFURA_KEY",
+    concurrency=False,
+    force_update=False,
+)
 
 snet_sdk = sdk.SnetSDK(config)  # the 'SnetSDK' instance
 initialized_services = []  # the list of initialized service clients
@@ -319,42 +367,72 @@
 """
 commands = {
     "main": {
-        "organizations": (list_organizations, "print a list of organization ids from Registry"),
-        "services": (list_services_for_org, "print a list of service ids for an organization from Registry"),
-        "balance": (balance, "print the account balance and the escrow balance"),
+        "organizations": (
+            list_organizations,
+            "print a list of organization ids from Registry",
+        ),
+        "services": (
+            list_services_for_org,
+            "print a list of service ids for an organization from Registry",
+        ),
+        "balance": (
+            balance,
+            "print the account balance and the escrow balance",
+        ),
         "deposit": (deposit, "deposit FET tokens into MPE"),
         "block": (block_number, "print the current block number"),
         "service": (lambda: None, "go to the services menu"),
         "channel": (lambda: None, "go to the channels menu"),
-        "help": (commands_help, "print a list of available commands in the main menu"),
-        "exit": (lambda: exit(0), "exit the application")
+        "help": (
+            commands_help,
+            "print a list of available commands in the main menu",
+        ),
+        "exit": (lambda: exit(0), "exit the application"),
     },
-
     "service": {
-        "add": (create_service_client,
-                "create a new service client. If it the first time, the new service becomes active"),
+        "add": (
+            create_service_client,
+            "create a new service client. If it the first time, the new service becomes active",
+        ),
         "use": (switch_service, "switch the active service"),
         "call": (call, "call the active service method"),
-        "info": (print_service_info, "output services, methods and messages in a service"),
-        "list": (list_initialized_services, "print a list of initialized services"),
-        "help": (commands_help, "print a list of available commands in the services menu"),
+        "info": (
+            print_service_info,
+            "output services, methods and messages in a service",
+        ),
+        "list": (
+            list_initialized_services,
+            "print a list of initialized services",
+        ),
+        "help": (
+            commands_help,
+            "print a list of available commands in the services menu",
+        ),
         "back": (lambda: None, "return to the main menu"),
-        "exit": (lambda: exit(0), "exit the application")
+        "exit": (lambda: exit(0), "exit the application"),
     },
-
     "channel": {
-        "update": (update_channels, "update a list of initialized payment channels"),
+        "update": (
+            update_channels,
+            "update a list of initialized payment channels",
+        ),
         "list": (list_channels, "print a list of initialized payment channels"),
         "open": (open_channel, "open a new payment channel"),
         "add-funds": (add_funds, "add funds to a channel"),
-        "extend-expiration": (extend_expiration, "extend expiration of a channel"),
-        "help": (commands_help, "print a list of available commands in the channels menu"),
+        "extend-expiration": (
+            extend_expiration,
+            "extend expiration of a channel",
+        ),
+        "help": (
+            commands_help,
+            "print a list of available commands in the channels menu",
+        ),
         "back": (lambda: None, "return to the main menu"),
-        "exit": (lambda: exit(0), "exit the application")
-    }
+        "exit": (lambda: exit(0), "exit the application"),
+    },
 }
 
-active_commands: dict = commands["main"] # the list of available commands in the active menu
+active_commands: dict = commands["main"]  # the list of available commands in the active menu
 
 
 def main():