Google supplies a command-line script called tf_upgrade_v2, which converts version 1.12 files (both .py and .ipynb files) into TensorFlow 2 compatible files.
The syntax for this conversion is as follows:
tf_upgrade_v2 --infile file_to_convert --outfile converted_file
There is a demonstration of this upgrade script in action at https://www.youtube.com/watch?v=JmSNUeBG-PQ&list=PLQY2H8rRoyvzoUYI26kHmKSJBedn3SQuB&index=32&t=71s, and more detailed information regarding it is available at https://github.com/tensorflow/docs/blob/master/site/en/r2/guide/upgrade.md.
It is important to note that you should not update parts of your code manually before running this script.
The script will not fix all of the issues, but ...
