adding file lock to run tests in parallel

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "liburlparser"
-version = "1.4.2"
+version = "1.4.3"
 description = "Fastest Url parser in the world"
 readme = "README.md"
 authors = [
@@ -26,7 +26,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
 ]
 dependencies = [
-#  "requests"
+  "filelock"
 ]
 
 [project.optional-dependencies]
@@ -93,7 +93,6 @@ select = [
    "T20",         # flake8-print
    "UP",          # pyupgrade
    "YTT",         # flake8-2020
-#   "EXE",         # flake8-executable
    "NPY",         # NumPy specific rules
    "PD",          # pandas-vet
 ]

src/liburlparser/core.py

@@ -2,10 +2,12 @@
 from __future__ import annotations
 
 import warnings
+from filelock import FileLock
 from pathlib import Path
 
 from ._core import Host, Psl, Url, __doc__, __version__
 
+
 psl = Psl()  # psl
 
 
@@ -33,7 +35,8 @@ def psl_update():
 if not psl.is_loaded():
     psl_filename = Path(__file__).parent / psl.filename
     if psl_filename.exists():
-        psl.load_from_path(psl_filename.as_posix())
+        with FileLock(psl_filename.with_suffix(".lock")):
+            psl.load_from_path(psl_filename.as_posix())
     else:
         warnings.warn(
             "Cannot find Public_suffix_list.dat. you must import it with \"psl.load_from_path\" or \"psl.load_from_string\" or \"psl.update\" functions",