Fix some warnings in log.py. (#805)

* Fix some warnings in log.py.

* Fix typo and using black format.

* Fix black.

* Rename dict_ to attrs

qlib/config.py

@@ -4,7 +4,7 @@
 About the configs
 =================
 
-The config will based on _default_config.
+The config will be based on _default_config.
 Two modes are supported
 - client
 - server
@@ -28,7 +28,7 @@ if TYPE_CHECKING:
 
 class Config:
     def __init__(self, default_conf):
-        self.__dict__["_default_config"] = copy.deepcopy(default_conf)  # avoiding conflictions with __getattr__
+        self.__dict__["_default_config"] = copy.deepcopy(default_conf)  # avoiding conflicts with __getattr__
         self.reset()
 
     def __getitem__(self, key):
@@ -271,7 +271,11 @@ class QlibConfig(Config):
         self._registered = False
 
     class DataPathManager:
-        def __init__(self, provider_uri: Union[str, Path, dict], mount_path: Union[str, Path, dict]):
+        def __init__(
+            self,
+            provider_uri: Union[str, Path, dict],
+            mount_path: Union[str, Path, dict],
+        ):
             self.provider_uri = provider_uri
             self.mount_path = mount_path
 
@@ -360,10 +364,10 @@ class QlibConfig(Config):
         """
         configure qlib based on the input parameters
 
-        The configure will act like a dictionary.
+        The configuration will act like a dictionary.
 
-        Normally, it literally replace the value according to the keys.
-        However, sometimes it is hard for users to set the config when the configure is nested and complicated
+        Normally, it literally is replaced the value according to the keys.
+        However, sometimes it is hard for users to set the config when the configuration is nested and complicated
 
         So this API provides some special parameters for users to set the keys in a more convenient way.
         - region:  REG_CN, REG_US