Move multiprocessing config to image.py where it is actually used.

Author: tmillenaar

sourcefinder/image.py

@@ -16,14 +16,16 @@
 from sourcefinder.utility import containers
 from sourcefinder.utility.uncertain import Uncertain
 import psutil
-from multiprocessing import Pool
+import multiprocessing
 from functools import cached_property
 from functools import partial
 
 from scipy import ndimage
 from numba import guvectorize, float32, int32
 import os
 
+multiprocessing.set_start_method("forkserver", force=True)
+
 logger = logging.getLogger(__name__)
 
 
@@ -1205,7 +1207,7 @@ def _pyse(
             )
 
             if self.conf.image.allow_multiprocessing:
-                with Pool(psutil.cpu_count()) as p:
+                with multiprocessing.Pool(psutil.cpu_count()) as p:
                     fit_results = p.map(fit_islands_partial, island_list)
             else:
                 fit_results = [fit_islands_partial(island) for island in

test/conftest.py

@@ -1,12 +1,9 @@
 import os
 from pathlib import Path
 import warnings
-import multiprocessing
 
 DEFAULT = str((Path(__file__).parent / "data").absolute())
 DATAPATH = os.environ.get("TKP_TESTPATH", DEFAULT)
 
-multiprocessing.set_start_method("forkserver", force=True)
-
 if not os.access(DATAPATH, os.X_OK):
     warnings.warn(f"can't access {DATAPATH}")