Raise explicit exception for wrong which context

craynic · Jul 5, 2018 · 9997611 · 9997611
1 parent ac16274
commit 9997611
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pipenv/core.py b/pipenv/core.py
@@ -106,7 +106,8 @@ def which(command, location=None, allow_global=False):
             project.virtualenv_location
             or os.environ.get("VIRTUAL_ENV", "")
         )
-    assert location and os.path.exists(location), "virtualenv not created"
+    if not location and os.path.exists(location):
+        raise RuntimeError("virtualenv not created nor specified")
     if not allow_global:
         if os.name == "nt":
             p = find_windows_executable(os.path.join(location, "Scripts"), command)