Add a global constant whether PIL is available or not.

Author: bartTC

qrcode/constants.py

@@ -1,5 +1,10 @@
+from importlib.util import find_spec
+
 # QR error correct levels
 ERROR_CORRECT_L = 1
 ERROR_CORRECT_M = 0
 ERROR_CORRECT_Q = 3
 ERROR_CORRECT_H = 2
+
+# Constant whether the PIL library is installed.
+PIL_AVAILABLE = find_spec("PIL") is not None

qrcode/tests/test_module.py

@@ -1,12 +1,11 @@
 import subprocess
 import sys
 import tempfile
-from importlib.util import find_spec
 from pathlib import Path
 
 import pytest
 
-PIL_NOT_AVAILABLE = find_spec("PIL") is None
+from qrcode.constants import PIL_AVAILABLE
 
 
 def test_module_help():
@@ -27,7 +26,7 @@ def test_module_help():
     assert "--factory" in result.stdout
 
 
-@pytest.mark.skipif(PIL_NOT_AVAILABLE, reason="PIL is not installed")
+@pytest.mark.skipif(not PIL_AVAILABLE, reason="PIL is not installed")
 def test_module_generate_qrcode():
     """Test that the module can generate a QR code image."""
     with tempfile.TemporaryDirectory() as temp_dir: