add chapter 4 code

[rasbt]

No description provided.

[pep8speaks]

Hello @rasbt! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file ch04/01_main-chapter-code/gpt.py:

Line 24:80: E501 line too long (89 > 79 characters)
Line 38:80: E501 line too long (83 > 79 characters)
Line 55:80: E501 line too long (84 > 79 characters)
Line 61:80: E501 line too long (99 > 79 characters)
Line 66:80: E501 line too long (87 > 79 characters)
Line 68:80: E501 line too long (96 > 79 characters)
Line 78:80: E501 line too long (89 > 79 characters)
Line 79:71: W291 trailing whitespace
Line 83:80: E501 line too long (97 > 79 characters)
Line 88:80: E501 line too long (86 > 79 characters)
Line 89:80: E501 line too long (81 > 79 characters)
Line 90:80: E501 line too long (82 > 79 characters)
Line 101:62: W291 trailing whitespace
Line 133:55: W291 trailing whitespace
Line 159:38: W291 trailing whitespace
Line 197:80: E501 line too long (80 > 79 characters)
Line 225:34: W291 trailing whitespace

Comment last updated at 2024-02-04 16:06:06 UTC