use a with statement to update image metadata

download.py

@@ -99,21 +99,13 @@ def write_exif(picture, img_metadata):
     #{'thumb_original_url': 'https://scontent-cdg4-2.xx.fbcdn.net/m1/v/t6/An9Zy2SrH9vXJIF01QkBODyUbg7XSKfwL48UwHyvihSwvECGjVbG0vSw9uhxe2-Dq-k2eUcigb83buO6zo-7eVbykfp5aQIe1kgd-MJr66nU_H-o_mwBLZXgVbj5I_5WX-C9c6FxJruHkV962F228O0?ccb=10-5&oh=00_AfDOKD869DxL-4ZNCbVo8Rn29vsc0JyjMAU2ctx4aAFVMQ&oe=65256C25&_nc_sid=201bca',
     #  'captured_at': 1603459736644, 'geometry': {'type': 'Point', 'coordinates': [2.5174596904057, 48.777089857534]}, 'id': '485924785946693'}
     
-    #picture = writer.writePictureMetadata(picture, img_metadata)
-    #picture = writer.add_altitude(picture, img_metadata)
-    #picture = writer.add_direction(picture, img_metadata)
-    image = writer.Writer(picture)
-    image.writePictureMetadata(img_metadata)
-    image.add_altitude(img_metadata)
-    image.add_direction(img_metadata)
-    image.apply()
-    import copy
-    #bb = copy.copy(updated_image.get_Bytes())
-    #updated_image.close()
-    #TODO voir si j'ai encore besoin d'une copie et d'un .close() si j'ajoute la methode __exit__ à la classe Writer
-    #return updated_image.get_Bytes()
-    updated_image = image.get_Bytes()
-    image.close()
+    with writer.Writer(picture) as image:
+        image.writePictureMetadata(img_metadata)
+        image.add_altitude(img_metadata)
+        image.add_direction(img_metadata)
+        image.apply()
+        updated_image = image.get_Bytes()
+
     return updated_image
 
 if __name__ == '__main__':

writer.py

@@ -37,6 +37,9 @@ class Writer():
         self.updated_exif = {}
         self.updated_xmp = {}
 
+    def __enter__(self):
+        return self
+    
     def __exit__(self, *args):
         self.image.close()