Fixed errors when renaming without an active env (conda#11915)

conda/base/context.py

@@ -611,7 +611,7 @@ def default_prefix(self):
 
     @property
     def active_prefix(self):
-        return os.getenv('CONDA_PREFIX')
+        return os.getenv("CONDA_PREFIX")
 
     @property
     def shlvl(self):

conda/cli/common.py

@@ -73,12 +73,14 @@ def ensure_name_or_prefix(args, command):
         raise CondaValueError('either -n NAME or -p PREFIX option required,\n'
                               'try "conda %s -h" for more details' % command)
 
-def is_active_prefix(prefix):
+def is_active_prefix(prefix: str) -> bool:
     """
     Determines whether the args we pass in are pointing to the active prefix.
     Can be used a validation step to make sure operations are not being
     performed on the active prefix.
     """
+    if context.active_prefix is None:
+        return False
     return (
         paths_equal(prefix, context.active_prefix)
         # normcasing our prefix check for Windows, for case insensitivity

news/11915-no-active-env-renaming-error

@@ -0,0 +1,19 @@
+### Enhancements
+
+* <news item>
+
+### Bug fixes
+
+* Fixed errors when renaming without an active env (#11915)
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>

tests/cli/test_common.py

@@ -11,12 +11,11 @@
 
 from conda.auxlib.collection import AttrDict
 from conda.base.context import conda_tests_ctxt_mgmt_def_pol, context
-from conda.cli.common import check_non_admin, confirm, confirm_yn
+from conda.cli.common import check_non_admin, confirm, confirm_yn, is_active_prefix
 from conda.common.compat import on_win
 from conda.common.io import captured, env_var
 from conda.exceptions import CondaSystemExit, DryRunExit, OperationNotAllowed
 
-
 def test_check_non_admin_enabled_false():
     with env_var('CONDA_NON_ADMIN_ENABLED', 'false', stack_callback=conda_tests_ctxt_mgmt_def_pol):
         if on_win:
@@ -77,3 +76,10 @@ def test_always_yes():
         with env_var('CONDA_DRY_RUN', 'false', stack_callback=conda_tests_ctxt_mgmt_def_pol):
             choice = confirm_yn()
             assert choice is True
+
+
+@pytest.mark.parametrize("prefix,active", [("", False), ("active_prefix", True)])
+def test_is_active_prefix(prefix, active):
+    if prefix == "active_prefix":
+        prefix = context.active_prefix
+    assert is_active_prefix(prefix) is active