style: format code with autopep8

Format code with autopep8

This commit fixes the style issues introduced in 6432fdf according to the output
from Autopep8.

Details: None

Author: deepsource-autofix[bot]

Gradient_Mapping_Script/Gradient_Mapping Script.py

@@ -15,4 +15,4 @@
     plt.title(titles[i])
     plt.xticks([]), plt.yticks([])
 
-plt.show()
+plt.show()