add fallback.yaml to git. Get rid of nasty error handling in Notes class since now we have a fallback file

scripts/config.py

@@ -22,4 +22,4 @@ LECTURE_END_MARKER = 'end lectures'
 DEFAULT_NEW_LECTURE_HEADER = r'\lecture[]{{{date}}}{{{title}}}'
 DEFAULT_LECTURE_SEARCH_REGEX = r'lecture.*({\d*})?{(.*?)}{(.*)}'
 DEFAULT_IMPORT_INDENTATION = 4
-FALLBACK_COURSE_INFO_FILE = Path('info.yaml').resolve()
+FALLBACK_COURSE_INFO_FILE = Path('fallback.yaml').resolve()

scripts/fallback.yaml

@@ -0,0 +1,20 @@
+title: 'Unnamed course'
+short: 'unnamed'
+language: 'english'
+links:
+    url: ''
+    ecampus: ''
+    sciebo: ''
+    basis: ''
+    github: ''
+exercises:
+    path: 'ub'
+    name: 'Maximilian Keßler'
+literature:
+    path: 'doc'
+notes:
+    path: '.'
+    master_file: 'master.tex'
+    full_file: 'full.tex'
+    lectures:
+        path: '.'

scripts/notes.py

@@ -11,23 +11,11 @@ from edit import edit
 class Notes:
     def __init__(self, course):
         self.course = course
-        if 'notes' in course.info:
         self.info = course.info['notes']
-        else:
-            self.info = []
-        if 'path' in self.info:
         self.root = course.path / self.info['path']
         self.root.mkdir(parents=True, exist_ok=True)
-        else:
-            self.root = course.path
-        if 'master_file' in self.info:
         self.master_file = self.root / self.info['master_file']
-        else:
-            self.master_file = self.root / DEFAULT_MASTER_FILE_NAME
-        if 'full_file' in self.info:
-            self.full_file: Path = self.root / self.info['full_file']
-        else:
-            self.full_file: Path = None
+        self.full_file = self.root / self.info['full_file']
         self._lectures = None
 
     @staticmethod