fix: try a second source for the packaging version in case importlib …

…metadata failed (#1656)
pdm-project · Feb 2, 2023 · f1b6b50 · f1b6b50
1 parent 91a500d
commit f1b6b50
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/pdm/utils.py b/src/pdm/utils.py
@@ -26,7 +26,13 @@
 from pdm.compat import Distribution, importlib_metadata
 
 _egg_fragment_re = re.compile(r"(.*)[#&]egg=[^&]*")
-PACKAGING_22 = Version(importlib_metadata.version("packaging")) >= Version("22")
+
+try:
+    _packaging_version = importlib_metadata.version("packaging")
+except Exception:
+    from packaging import __version__ as _packaging_version
+
+PACKAGING_22 = Version(_packaging_version) >= Version("22")
 
 
 def create_tracked_tempdir(