PyLint false positive PLW0602 when del a global

[ilius]

Sample code:

test_global_var = None


def delete_test_global_var():
	global test_global_var
	if "test_global_var" in globals():
		del test_global_var

Command: ruff check --preview --isolated --select PL del-global.py
Output:

del-global.py:5:9: PLW0603 Using the global statement to update `test_global_var` is discouraged
  |
4 | def delete_test_global_var():
5 |     global test_global_var
  |            ^^^^^^^^^^^^^^^ PLW0603
6 |     if "test_global_var" in globals():
7 |         del test_global_var
  |

del-global.py:5:9: PLW0602 Using global for `test_global_var` but no assignment is done
  |
4 | def delete_test_global_var():
5 |     global test_global_var
  |            ^^^^^^^^^^^^^^^ PLW0602
6 |     if "test_global_var" in globals():
7 |         del test_global_var
  |

Found 2 errors.

Version:

$ ruff version
ruff 0.3.2

[charliermarsh]

Thanks!

[charliermarsh]

This only occurs when the del is in a conditional.