Fix log file, add startup to readme

README.md

@@ -9,7 +9,7 @@ This project requires Python 3.6+ to run the `avwx` library. Run these commands
 ```bash
 python -V
 python3 -V
-python3.6 -V
+python3.7 -V
 ```
 
 If you're running this on a Raspberry Pi that does not yet have 3.6+ on it, you can find [instructions here](https://gist.github.com/dschep/24aa61672a2092246eaca2824400d37f).
@@ -29,13 +29,28 @@ However, the program can be run on any screen or computer in its own window for
 Install the dependancies using the Python version from above.
 
 ```bash
-python3.6 -m pip install avwx-engine~=0.11.6 pygame~=1.9.3
+pip3 install -r requirements.txt
 ```
 
 Then just run the screen file to boot the display.
 
 ```bash
-python3.6 screen.py
+python3 screen.py
 ```
 
 On the main display, pressing the RMK, WX, WX/RMK displays more METAR information. Pressing the gear displays more options.
+
+### Startup
+
+If you want the METAR screen to run on boot, we can use autostart by creating this file:
+
+`/home/pi/.config/autostart/metar.desktop`
+
+```text
+[Desktop]
+Type=Application
+Name=Metar
+Exec=/usr/bin/python3 /home/pi/METAR-RasPi/screen.py
+```
+
+Make sure the Exec line uses your version of Python and points to your project folder.

common.py

@@ -51,11 +51,12 @@
     "9",
 ]
 
-if cfg.log_file is None:
-    logger = logging.getLogger()
-else:
-    logger = logging.FileHandler(cfg.log_file)
+logger = logging.getLogger()
 logger.setLevel(cfg.log_level)
+if cfg.log_file is not None:
+    log_file = logging.FileHandler(cfg.log_file)
+    log_file.setLevel(cfg.log_level)
+    logger.addHandler(log_file)
 
 
 def ident_to_station(idents: [int]) -> str:

config.py

@@ -24,7 +24,7 @@
 # Set log level - CRITICAL, ERROR, WARNING, INFO, DEBUG
 log_level = logging.DEBUG
 
-# Send METAR Pi logs to a file
+# Send METAR Pi logs to a file. Ex: "output.log"
 log_file = None
 
 # Set to True to shutdown the Pi when exiting the program