Index: ammosreader/__init__.py
===================================================================
--- ammosreader/__init__.py	(revision dff8988960eb5307013e281ff749d9fa74557406)
+++ ammosreader/__init__.py	(revision b00fbbb7c128e153fa072721cc75822dca24a6fa)
@@ -4,5 +4,5 @@
 from pathlib import Path
 
-# change the default log path to /var/log/ammos/ammos.log when system configuration created this dir
+# FIXME: change the default log path to /var/log/ammos/ammos.log when system configuration created this dir
 # with the appropriate rights
 
@@ -12,18 +12,12 @@
 
 if not log_path.exists():
-#   print(log_path, "does not exist")
     try:
-#       print("Trying to create logfile", str(log_path))
         log_path.touch()
     except PermissionError:
-#       print("Logging to file disabled")
         conf_file = Path(__file__).parent / 'ammos_logging.conf'
         print("Conf file", conf_file)
         logging.config.fileConfig(conf_file)
 else:
-#   print("Logging to", str(log_path))
     logging.basicConfig(filename=str(log_path), encoding='utf-8', level=logging.DEBUG)
 
 logger = logging.getLogger(__name__)
-
-logger.warning("Text")
Index: org/README.org
===================================================================
--- org/README.org	(revision dff8988960eb5307013e281ff749d9fa74557406)
+++ org/README.org	(revision b00fbbb7c128e153fa072721cc75822dca24a6fa)
@@ -7,4 +7,6 @@
 * Installation
 
+** Standard pip install (not tested on all platforms)
+
 #+BEGIN_SRC shell
 git clone http://gitlab.kid.local/kidzg/ammosreader.git
@@ -13,13 +15,18 @@
 #+END_SRC
 
+** Using the guix functional package manager
+
+First subscribe to the GUIX oai channel (see Chapter Add channel to system) in
+https://gitlab.kid.local/kidzg/guix-deployment/-/blob/master/DevOps.org)
+
+Then install using the guix
+
+#+BEGIN_SRC shell
+guix package -i python-ammosreader
+#+END_SRC
+
 * Usage
 
-The sample_scripts subdirectory contains multiple scripts.
-
-** audio_reader.py
-
-#+BEGIN_SRC shell
-python3 audio_reader.py 'path_to_ammos_file'
-#+END_SRC
+There are two scripts, which demonstrate the usage of the ammosreader package.
 
 ** iqdw_reader.py
@@ -34,2 +41,21 @@
 python3 pdw_reader.py 'path_to_pdw_file'
 #+END_SRC
+
+To minimize depencencies of the core package other scripts (audio_reader, ammos_viewer)
+are now stored in separate packages. 
+
+* Logging
+
+If you use ammosreader in your own scripts a logger can be imported and used as follows:
+
+#+BEGIN_SRC python
+from ammosreader import logger
+logger.warning("Put your warning here")
+#+END_SRC
+
+The name of the logfile is ammos.log
+The logger uses the directory stored in the AMMOS_LOG_DIR environment variable.
+If this variable is not set, /tmp is used as default.
+If the logfile is not writable, the standard logger config is used and
+the logs go directly to console (tty).
+(see ammos_logging.conf file in this repository)