comments added to storage

resources/storage.py

@@ -22,13 +22,19 @@ class Storage(object):
     Class to handle data saving. 
     """
     def __init__(self):
-        
-        self.directory = '.'
+        """
+        By default, directory is set to the current directory. 
+        """
+        self.directory = os.getcwd()
     
     def set_directory(self, directory):
         self.directory = directory
         
     def create_data_file(self, *args):
+        """
+        Creates a file to store data. Name is set automatically. 
+        *args should be strings, with the column titles of the data to be saved. 
+        """
         saving_directory = "/".join([self.directory, self.get_date_string()])
         if not os.path.exists(saving_directory):
             os.makedirs(saving_directory)
@@ -51,12 +57,20 @@ class Storage(object):
         
         
     def append_data_to_current_file(self, row):
+        """
+        This will append a row to the last data file created. 
+        row should be a list with the values to append. 
+        """
         with open(self.get_current_data_filename(), 'ab') as f:
             #data = np.column_stack(args)
             np.savetxt(f, [row])
             f.flush()
 
     def append_metadata_to_current_file(self, *args):
+        """
+        This appends metadata to the last metadata file created. 
+        *args should be dictionaries, each of them will be stored. 
+        """
         for arg in args:
             for key, value in arg.items():
                 with open(self.get_current_metadata_filename(), 'a') as f: