Fix: logging on py310 (#2802)

* feat: encourage py311

* fix: logging import on py310

* fix: do upper and simplify handling

docs/installation.qmd

@@ -14,7 +14,7 @@ This guide covers all the ways you can install and set up Axolotl for your envir
 ## Requirements {#sec-requirements}
 
 - NVIDIA GPU (Ampere architecture or newer for `bf16` and Flash Attention) or AMD GPU
-- Python ≥3.10
+- Python ≥3.11
 - PyTorch ≥2.5.1
 
 ## Installation Methods {#sec-installation-methods}
@@ -153,7 +153,7 @@ We recommend using WSL2 (Windows Subsystem for Linux) or Docker.
 
 ### Conda/Pip venv {#sec-conda}
 
-1. Install Python ≥3.10
+1. Install Python ≥3.11
 2. Install PyTorch: https://pytorch.org/get-started/locally/
 3. Install Axolotl:
    ```{.bash}

src/axolotl/logging_config.py

@@ -25,12 +25,20 @@ class AxolotlOrWarnErrorFilter(logging.Filter):
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
 
-        self.axolotl_level = logging.getLevelNamesMapping()[
-            os.getenv("AXOLOTL_LOG_LEVEL", DEFAULT_AXOLOTL_LOG_LEVEL)
-        ]
-        self.other_level = logging.getLevelNamesMapping()[
-            os.getenv("LOG_LEVEL", DEFAULT_LOG_LEVEL)
-        ]
+        axolotl_log_level = os.getenv(
+            "AXOLOTL_LOG_LEVEL", DEFAULT_AXOLOTL_LOG_LEVEL
+        ).upper()
+        other_log_level = os.getenv("LOG_LEVEL", DEFAULT_LOG_LEVEL).upper()
+
+        try:
+            # py311+ only
+            level_mapping = logging.getLevelNamesMapping()
+            self.axolotl_level = level_mapping[axolotl_log_level]
+            self.other_level = level_mapping[other_log_level]
+        except AttributeError:
+            # For py310, use getLevelName directly
+            self.axolotl_level = logging.getLevelName(axolotl_log_level)
+            self.other_level = logging.getLevelName(other_log_level)
 
     def filter(self, record: LogRecord) -> bool:
         # General filter