Remove version of pytest from diagnostics.txt

# Conflicts:
#	on_modify.py
#	test/docker/Dockerfile

on_modify.py

@@ -27,6 +27,7 @@
 ###############################################################################
 
 import json
+import logging
 import subprocess
 import sys
 
@@ -72,36 +73,50 @@ def extract_annotation_from(json_obj):
 
 def main(old, new):
 
-    start_or_stop = ''
+    logger = logging.getLogger(__name__)
+    logger.setLevel(logging.DEBUG)
+    fh = logging.FileHandler('hook.log')
+    fh.setLevel(logging.DEBUG)
+    logger.addHandler(fh)
 
-    # Started task.
+    logger.debug(f"Calling hook with {old}, {new}")
+
+    timew_cmd = None
+
+
+# Started task.
     if 'start' in new and 'start' not in old:
-        start_or_stop = 'start'
+        timew_cmd = 'start'
 
     # Stopped task.
     elif ('start' not in new or 'end' in new) and 'start' in old:
-        start_or_stop = 'stop'
+        timew_cmd = 'stop'
 
-    if start_or_stop:
+    if timew_cmd is not None:
         tags = extract_tags_from(new)
-
-        subprocess.call(['timew', start_or_stop] + tags + [':yes'])
+        logger.debug(f"Calling 'timew {timew_cmd} {' '.join(tags)}'")
+        subprocess.call(['timew', timew_cmd] + tags + [':yes'])
 
     # Modifications to task other than start/stop
     elif 'start' in new and 'start' in old:
         old_tags = extract_tags_from(old)
         new_tags = extract_tags_from(new)
 
         if old_tags != new_tags:
+            logger.debug(f"Calling 'timew untag @1 {' '.join(old_tags)}'")
             subprocess.call(['timew', 'untag', '@1'] + old_tags + [':yes'])
+            logger.debug(f"Calling 'timew tag @1 {' '.join(new_tags)}'")
             subprocess.call(['timew', 'tag', '@1'] + new_tags + [':yes'])
 
         old_annotation = extract_annotation_from(old)
         new_annotation = extract_annotation_from(new)
 
         if old_annotation != new_annotation:
+            logger.debug(f"Calling 'timew annotate @1 {new_annotation}'")
             subprocess.call(['timew', 'annotate', '@1', new_annotation])
 
+    logger.debug(f"=== ===")
+
 
 if __name__ == "__main__":
     old = json.loads(input_stream.readline().decode("utf-8", errors="replace"))