Add language switcher

config/template_config.ini

@@ -8,6 +8,8 @@
 version = 13
 ; Set this to no when you are done editing the file
 is_template = yes
+; Language code for string file
+language = it_IT
 
 # Telegram bot parameters
 [Telegram]

core.py

@@ -1,11 +1,13 @@
 import sys
 import telegram
-import strings
 import worker
 import configloader
 import utils
 import threading
+import importlib
 
+language = configloader.config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 def main():
     """The core code of the program. Should be run only in the main process!"""

database.py

@@ -5,9 +5,12 @@ from sqlalchemy.orm import sessionmaker, relationship
 from sqlalchemy.ext.declarative import declarative_base
 import configloader
 import telegram
-import strings
 import requests
 import utils
+import importlib
+
+language = configloader.config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 # Create a (lazy) database engine
 engine = create_engine(configloader.config["Database"]["engine"])

utils.py

@@ -2,11 +2,13 @@ import telegram
 import telegram.error
 import time
 from configloader import config
-from strings import currency_format_string, currency_symbol
 import typing
 import os
 import sys
-import strings
+import importlib
+
+language = config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 if config["Error Reporting"]["sentry_token"] != \
         "https://00000000000000000000000000000000:00000000000000000000000000000000@sentry.io/0000000":
@@ -40,7 +42,7 @@ class Price:
         return f"<Price of value {self.value}>"
 
     def __str__(self):
-        return currency_format_string.format(symbol=currency_symbol,
+        return strings.currency_format_string.format(symbol=strings.currency_symbol,
                                              value="{0:.2f}".format(
                                                  self.value / (10 ** int(config["Payments"]["currency_exp"]))))
 

worker.py

@@ -3,7 +3,6 @@ import typing
 import uuid
 import datetime
 import telegram
-import strings
 import configloader
 import sys
 import queue as queuem
@@ -13,7 +12,10 @@ import utils
 import os
 from html import escape
 import requests
+import importlib
 
+language = configloader.config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 class StopSignal:
     """A data class that should be sent to the worker when the conversation has to be stopped abnormally."""