truncate decimal places, opens in the correct mode

analyze.py

@@ -99,14 +99,14 @@ def analyze_server(server: Path, serverip: str) -> None:
         time_of_hit = datetime.strptime(timethings, log_date_format)
         # convert from its default timezone in GMT to the timezone of the requester
         localtime = time_of_hit.replace(tzinfo=timezone.utc).astimezone(timezone)
-        # convert this time back to a string for logging purposes
-        localtime_str = localtime.strftime(log_date_format)
+        # convert this time back to a string for logging purposes, without timezone
+        localtime_str = ' '.join(localtime.strftime(log_date_format).split(' ')[:2])
 
         distance = latlon_distance(self_latlon, latlon)
         date, time = timethings.split(' ')[:2]
         result += (
-            f'{server.name},{ip},{distance},{date},{time},'
-            + f'{localtime_str},{method},{file}\n'
+            f'{server.name},{ip},{distance:.5f},{date},{time},'
+            + f'{localtime_str},{method},"{file}"\n'
         )
 
     return result
@@ -135,7 +135,7 @@ def main(args: list) -> int:
     outfile = 'analysis.csv'
     start_dir = Path('.').resolve()
 
-    f = open(outfile, 'a')
+    f = open(outfile, 'w')
     for logdir in args[1:]:
         chdir(logdir)
         serverdir = Path('.')