Redo log utils to use standard logging module

src/utils/log.py

@@ -1,19 +1,66 @@
-import sys
-import time
+import logging
+
+
+def create_logger(name: str, level: int = logging.DEBUG) -> logging.Logger:
+    """
+    A simple function to create a logger. You would typically put this right
+    under all the other modules you imported.
+
+    And then call `logger.debug()`, `logger.info()`, `logger.warning()`,
+    `logger.error()`, `logger.critical()`, and
+    `logger.exception` everywhere in that module.
+
+    :param name: A string with the logger name.
+    :param level: A integer with the logger level. Defaults to logging.DEBUG.
+    :return: A logging.Logger which you can use as a regular logger.
+    """
+    logger = logging.getLogger(name=name)
+    logger.setLevel(level=level)
+    logger.propagate = False
+    console_handler = AsyncStreamHandler()
+    console_handler.setLevel(level=level)
+    console_formatter = logging.Formatter("%(asctime)s - %(name)s - "
+                                          "%(levelname)s - %(message)s")
+    console_handler.setFormatter(fmt=console_formatter)
+    if console_handler not in logger.handlers:
+        logger.addHandler(hdlr=console_handler)
+    logger.debug(f"Created logger named {repr(name)} with level {repr(level)}")
+    logger.debug(f"Handlers for {repr(name)}: {repr(logger.handlers)}")
+    return logger
+
+
+class AsyncStreamHandler(logging.StreamHandler):
+    """
+    The same exact thing as a StreamHandler in the logging module, but the emit
+    function is defined asynchronously.
+    """
 
-class LOG_UTILS():
     def __init__(self):
-        self.COLOR_RED="\033[1;31m"
-        self.COLOR_GREEN="\033[1;32m"
-        self.COLOR_YELLOW="\033[1;33m"
-        self.COLOR_BLUE="\033[1;34m"
-        self.COLOR_RESET="\033[0m"
+        super().__init__()
+
+    async def emit(self, record: logging.LogRecord):
+        """
+        Does the exact same thing as a regular StreamHandler, but wrapped in an
+        asynchronous function.
 
-    async def log_info(self, message:str):
-        print(f"{self.COLOR_GREEN}[{time.ctime()}] INFO:{self.COLOR_RESET} {message}")
+        :param record: The record to emit.
+        """
+        super().emit(record)
 
-    async def log_error(self, message:str):
-        print(f"{self.COLOR_RED}[{time.ctime()}] ERROR:{self.COLOR_RESET} {message}", file=sys.stderr)
 
-    async def log_warn(self, message:str):
-        print(f"{self.COLOR_YELLOW}[{time.ctime()}] WARN:{self.COLOR_RESET} {message}")
+# class LOG_UTILS():
+#     def __init__(self):
+#         self.COLOR_RED="\033[1;31m"
+#         self.COLOR_GREEN="\033[1;32m"
+#         self.COLOR_YELLOW="\033[1;33m"
+#         self.COLOR_BLUE="\033[1;34m"
+#         self.COLOR_RESET="\033[0m"
+#
+#     async def log_info(self, message:str):
+#         print(f"{self.COLOR_GREEN}[{time.ctime()}] INFO:{self.COLOR_RESET} {message}")
+#
+#     async def log_error(self, message:str):
+#         print(f"{self.COLOR_RED}[{time.ctime()}] ERROR:{self.COLOR_RESET} {message}", file=sys.stderr)
+#
+#     async def log_warn(self, message:str):
+#         print(f"{self.COLOR_YELLOW}[{time.ctime()}] WARN:{self.COLOR_RESET} {message}")