v0.1 fastapi: route + model + orm

libplus/log.py

@@ -0,0 +1,46 @@
+# log.py
+import logging
+
+class Log:
+    # name, level no need to record
+    def __init__(self, name):
+        self.__log_name = name
+        self.__log_levlel = None
+        # deal duplicate handler
+        self.__handlers = []
+        # init default logger
+        self.set_console()
+
+    def set_console(self):
+        self.logger = logging.getLogger(self.__log_name)
+        # self.logger.setLevel(eval("logging." + level.upper()))
+        fh = logging.StreamHandler()
+        log_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+                                       ,datefmt='%Y-%m-%d %H:%M:%S')
+        fh.setFormatter(log_format)
+        if fh not in self.__handlers:
+            self.logger.addHandler(fh)
+            self.__handlers.append(fh)
+
+    def set_file(self, file_name):
+        self.logger = logging.getLogger(self.__log_name)
+        # self.logger.setLevel(eval("logging." + level.upper()))
+        fh = logging.FileHandler(file_name,encoding='utf-8') # FileHandler 的默认模式是 'a'，用 'a+' 在某些平台上可能导致文件指针行为异常。
+        log_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+                                       ,datefmt='%Y-%m-%d %H:%M:%S')
+        fh.setFormatter(log_format)
+        if fh not in self.__handlers:
+            self.logger.addHandler(fh)
+            self.__handlers.append(fh)
+
+    def message(self,level,message):
+        # self.logger.log(eval("logging." + level.upper()),message) # not safe for eval
+        self.logger.log(getattr(logging,level.upper()),message)
+
+
+
+l = Log('ai-model')
+l.message("warning","test Log class to console")
+
+# l.set_file('libplus.log')
+# l.message("info","test info Log to file")

libplus/logplus.log

@@ -0,0 +1,4 @@
+2026-09-17 08:43:50 - ai-model - INFO - ai-model - 0
+2026-09-17 08:43:50 - ai-model - INFO - ai-model - 1
+2026-09-17 08:51:39 - ai-model - INFO - ai-model - 0
+2026-09-17 08:51:39 - ai-model - INFO - ai-model - 1

libplus/logplus.py

@@ -0,0 +1,44 @@
+import logging,os
+
+class Log:
+    def __init__(self, name, level="INFO"):
+        self.logger = logging.getLogger(name)
+        self.logger.setLevel(getattr(logging, level.upper()))
+        # fix duplicated name logger
+        if not self.logger.hasHandlers():
+            self.set_console()
+
+    def set_console(self):
+        fh = logging.StreamHandler()
+        fh.setFormatter(logging.Formatter(
+            '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'
+        ))
+        if not self.logger.hasHandlers():
+            self.logger.addHandler(fh)
+
+    def set_file(self, file_name):
+        # 检查是否已有 FileHandler 指向同一个文件
+        for h in self.logger.handlers:
+            if isinstance(h, logging.FileHandler) and h.baseFilename == os.path.abspath(file_name):
+                return  # 已存在，直接返回，不重复添加
+
+        fh = logging.FileHandler(file_name, encoding='utf-8')
+        fh.setFormatter(logging.Formatter(
+            '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'
+        ))
+        print(f'{self.logger.hasHandlers()=}')
+        self.logger.addHandler(fh)
+
+    def message(self, level, message):
+        self.logger.log(getattr(logging, level.upper()), message)
+
+# single instance
+l = Log('ai-model')
+l1 = Log('ai-model')
+
+l.set_file("logplus.log")
+l1.set_file("logplus.log")
+l.message("info", "ai-model - 0")
+l1.message("info", "ai-model - 1")

libplus/logpluslplus.py

@@ -0,0 +1,53 @@
+import logging
+import os
+
+class Log:
+    _added = {}   # 类级别：记录每个 logger 已添加的 Handler 标识
+
+    def __init__(self, name, level="INFO"):
+        self.logger = logging.getLogger(name)
+        self.logger.setLevel(getattr(logging, level.upper()))
+        self.logger.propagate = False   # 避免向 root 传播导致重复
+        if not self.logger.hasHandlers():
+            self.set_console()
+
+    def _handler_exists(self, key):
+        return key in Log._added.get(self.logger.name, set())
+
+    def _mark_handler(self, key):
+        Log._added.setdefault(self.logger.name, set()).add(key)
+
+    def set_console(self):
+        if self._handler_exists("console"):
+            return
+        fh = logging.StreamHandler()
+        fh.setFormatter(logging.Formatter(
+            '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'
+        ))
+        self.logger.addHandler(fh)
+        self._mark_handler("console")
+
+    def set_file(self, file_name):
+        key = f"file:{os.path.abspath(file_name)}"
+        if self._handler_exists(key):
+            return
+        fh = logging.FileHandler(file_name, encoding='utf-8')
+        fh.setFormatter(logging.Formatter(
+            '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'
+        ))
+        self.logger.addHandler(fh)
+        self._mark_handler(key)
+
+    def message(self, level, message):
+        self.logger.log(getattr(logging, level.upper()), message)
+
+
+l = Log('ai-model')
+l1 = Log('ai-model')
+
+l.set_file("logplus.log")
+l1.set_file("logplus.log")
+l.message("info", "ai-model - 0")
+l1.message("info", "ai-model - 1")