write part file and then replace output file

jamendo_obs.ini

@@ -31,7 +31,7 @@ AudioFormat = ogg
 Order = relevance
 
 # Choose if you want to play vocal or instrumental music: vocal, instrumental (remove setting if not relevant)
-VocalInstrumental = instrumental
+;VocalInstrumental = instrumental
 
 # Set the speed of music you like: verylow, low, medium, high, veryhigh (remove setting if not relevant)
-;Speed = low
+;Speed = low

lib/png_renderer.py

@@ -1,4 +1,5 @@
 
+import os
 from lib.renderer import Renderer
 from PIL import Image, ImageDraw, ImageFont, ImageFile
 
@@ -41,4 +42,6 @@ class PNG_Renderer(Renderer):
         draw.text((text_x,artist_y), artist, font=artist_font, fill='#' + self._config['TitleFontColor'])
         draw.text((text_x,album_y), album, font=album_font, fill='#' + self._config['TitleFontColor'])
 
-        image.save(self._config['OutputPath'])
+        # Write file and then move it in position
+        image.save(self._config['OutputPath'] + '.part', 'PNG')
+        os.replace(self._config['OutputPath'] + '.part', self._config['OutputPath'])