fix: in project conda venv activate without argument (#1735)

* fix: in project conda venv activate without argument

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* Create 1735.doc.md

* fix: FileNotFoundError when conda isn't installed

* fix: detect conda venv by checking conda-meta

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

news/1735.doc.md

@@ -0,0 +1 @@
+Support using `pdm venv activate` without specifying `env_name` to activate in project venv created by conda

src/pdm/utils.py

@@ -281,8 +281,12 @@ def get_venv_like_prefix(interpreter: str | Path) -> Path | None:
     and return the prefix if found.
     """
     interpreter = Path(interpreter)
-    prefix = interpreter.parent.parent
-    if prefix.joinpath("pyvenv.cfg").exists():
+    prefix = interpreter.parent
+    if prefix.joinpath("conda-meta").exists():
+        return prefix
+
+    prefix = prefix.parent
+    if prefix.joinpath("pyvenv.cfg").exists() or prefix.joinpath("conda-meta").exists():
         return prefix
 
     virtual_env = os.getenv("VIRTUAL_ENV", os.getenv("CONDA_PREFIX"))