macOS: Reduce .dmg size by excluding "PIL"

59.1 MB -> 50.7 MB

setup/setup.py

@@ -67,6 +67,7 @@
             'excludes': [
                 'numpy',
                 'test',  # CPython test data
+                'PIL',
             ]
         }},
     )

src/crystal/tests/util/screenshots.py

@@ -1,6 +1,5 @@
 from contextlib import contextmanager
 import os
-import pyscreeze
 import sys
 from typing import Iterator
 
@@ -13,11 +12,16 @@ def screenshot_if_raises() -> Iterator[None]:
         # Take screenshot if screenshots directory path defined
         screenshots_dirpath = os.environ.get('CRYSTAL_SCREENSHOTS_DIRPATH')
         if screenshots_dirpath is not None:
-            os.makedirs(screenshots_dirpath, exist_ok=True)
-
-            screenshot_filename = os.environ.get('CRYSTAL_SCREENSHOT_ID', 'screenshot') + '.png'
-            screenshot_filepath = os.path.join(screenshots_dirpath, screenshot_filename)
-            print('*** Saving screenshot to: ' + os.path.abspath(screenshot_filepath), file=sys.stderr)
-            pyscreeze.screenshot(screenshot_filepath)
+            try:
+                import pyscreeze
+            except ImportError:  # probably PIL missing
+                print('*** Unable to save screenshot because pyscreeze not available. Probably PIL is missing.', file=sys.stderr)
+            else:
+                os.makedirs(screenshots_dirpath, exist_ok=True)
+
+                screenshot_filename = os.environ.get('CRYSTAL_SCREENSHOT_ID', 'screenshot') + '.png'
+                screenshot_filepath = os.path.join(screenshots_dirpath, screenshot_filename)
+                print('*** Saving screenshot to: ' + os.path.abspath(screenshot_filepath), file=sys.stderr)
+                pyscreeze.screenshot(screenshot_filepath)
 
         raise