feature: add first log try

.gitignore

@@ -8,3 +8,4 @@ settings.ini
 htmlcov/
 \~/
 settings.env
+log

.travis.yml

@@ -1,9 +1,8 @@
 language: python
 cache: pip
 python:
-  - "3.4"
-  - "3.5"
   - "3.6"
+  - "3.7"
 install:
   - pip install -r requirements-dev.txt
   - pip install coveralls

requirements.txt

@@ -2,3 +2,4 @@ requests==2.20.0
 lxml==4.2.1
 luma.led_matrix==1.0.5
 pyyaml==3.13
+loguru==0.3.0

rerwatcher/__main__.py

@@ -1,11 +1,18 @@
 #!/usr/bin/env python3
 # coding: utf-8
+from loguru import logger
 
 from . import build_rer_watcher
 
+logger.add("log/file_{time}.log", rotation="12:00")
+
 # RERWatcher entrypoint.
 try:
+    logger.info("Building RERWatcher app...")
     rer_watcher = build_rer_watcher()
+    logger.info("RERWatcher app built.")
+    logger.info("Starting RERWatcher app...")
     rer_watcher.start()
 except KeyboardInterrupt:
+    logger.info("RERWatcher app stopped.")
     pass

rerwatcher/api.py

@@ -11,7 +11,9 @@
 from string import Template
 
 import requests
+from loguru import logger
 from lxml import etree
+from requests import RequestException
 from requests.auth import HTTPBasicAuth
 
 
@@ -54,6 +56,26 @@ def format_timedelta(timedelta):
     return time
 
 
+class TimeTable:
+    """Timetable
+
+    Encapsulate timetable information.
+
+    Attributes:
+        miss (str): the train code.
+        time: the departure time.
+
+    """
+
+    def __init__(self, miss, time):
+        self.miss = miss
+        self.time = time
+
+    def text(self):
+        """Return the timetable to nice format."""
+        return f"{self.miss}: {self.time}"
+
+
 class TransilienApi:
     """Translien api
 
@@ -96,8 +118,21 @@ def fetch_data(self):
         Returns:
             timetables (list<TimeTable>): the next departure timetable.
         """
-        response = requests.get(url=self._url, auth=self._auth)
-        timetables = self._get_timetables(response)
+        response = None
+        timetables = [TimeTable(miss='Error', time='')]
+
+        try:
+            logger.info(f"Fetching data from {self._url}.")
+            response = requests.get(url=self._url, auth=self._auth)
+        except RequestException:
+            logger.error(f"Fetching {self._url} failed.")
+
+        try:
+            if response:
+                logger.info(f"Formatting response.")
+                timetables = self._get_timetables(response)
+        except Exception:
+            logger.error(f"Formatting data failed.")
 
         return timetables
 
@@ -125,23 +160,3 @@ def _get_timetables(self, response, limit=2):
             timetables.append(timetable)
 
         return timetables
-
-
-class TimeTable:
-    """Timetable
-
-    Encapsulate timetable information.
-
-    Attributes:
-        miss (str): the train code.
-        time: the departure time.
-
-    """
-
-    def __init__(self, miss, time):
-        self.miss = miss
-        self.time = time
-
-    def text(self):
-        """Return the timetable to nice format."""
-        return ("{miss}: {time}".format(miss=self.miss, time=self.time))