Repository: spyder-ide/spyder

Issue:
TypeError when trying to update environments in status bar widget
## Description

### What steps will reproduce the problem?

<!--- You can use Markdown here --->

maybe due to the os.chra.dir, then this happens quite frequently. 

### Traceback
```python-traceback
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\plugins\maininterpreter\widgets\status.py", line 177, in update_envs
    self.envs.update(**output)
TypeError: dict.update() argument after ** must be a mapping, not NoneType
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\plugins\maininterpreter\widgets\status.py", line 177, in update_envs
    self.envs.update(**output)
TypeError: dict.update() argument after ** must be a mapping, not NoneType
```

## Versions

* Spyder version: 5.3.3  (conda)
* Python version: 3.9.12 64-bit
* Qt version: 5.15.2
* PyQt5 version: 5.15.7
* Operating System: Windows 10

### Dependencies

```
# Mandatory:
atomicwrites >=1.2.0          :  1.4.0 (OK)
chardet >=2.0.0               :  4.0.0 (OK)
cloudpickle >=0.5.0           :  2.0.0 (OK)
cookiecutter >=1.6.0          :  1.7.3 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.1.0 (OK)
IPython >=7.31.1;<8.0.0       :  7.31.1 (OK)
jedi >=0.17.2;<0.19.0         :  0.18.1 (OK)
jellyfish >=0.7               :  0.9.0 (OK)
jsonschema >=3.2.0            :  4.16.0 (OK)
keyring >=17.0.0              :  23.4.0 (OK)
nbconvert >=4.0               :  6.5.4 (OK)
numpydoc >=0.6.0              :  1.5.0 (OK)
paramiko >=2.4.0              :  2.8.1 (OK)
parso >=0.7.0;<0.9.0          :  0.8.3 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.9.0 (OK)
pygments >=2.0                :  2.11.2 (OK)
pylint >=2.5.0;<3.0           :  2.14.5 (OK)
pyls_spyder >=0.4.0           :  0.4.0 (OK)
pylsp >=1.5.0;<1.6.0          :  1.5.0 (OK)
pylsp_black >=1.2.0           :  1.2.1 (OK)
qdarkstyle >=3.0.2;<3.1.0     :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.2.2 (OK)
qtawesome >=1.0.2             :  1.2.2 (OK)
qtconsole >=5.3.2;<5.4.0      :  5.3.2 (OK)
qtpy >=2.1.0                  :  2.2.0 (OK)
rtree >=0.9.7                 :  1.0.1 (OK)
setuptools >=49.6.0           :  65.6.3 (OK)
sphinx >=0.6.6                :  5.0.2 (OK)
spyder_kernels >=2.3.3;<2.4.0 :  2.3.3 (OK)
textdistance >=4.2.0          :  4.2.1 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3             :  2.1.6 (OK)
zmq >=22.1.0                  :  23.2.0 (OK)

# Optional:
cython >=0.21                 :  None (NOK)
matplotlib >=3.0.0            :  3.6.2 (OK)
numpy >=1.7                   :  1.23.5 (OK)
pandas >=1.1.1                :  None (OK)
scipy >=0.17.0                :  1.10.0 (OK)
sympy >=0.7.3                 :  None (NOK)
```



Discussion:
Hey @ChengYangUmich, thanks for reporting. It seems there's a problem detecting the environments in your Anaconda installation.

We'll fix this problem in our next version (5.4.3), to be released next month. In the meantime, the only solution I can offer you is to remove and reinstall Anaconda because it seems it's broken.

Resolving patch:
diff --git a/spyder/plugins/maininterpreter/widgets/status.py b/spyder/plugins/maininterpreter/widgets/status.py
--- a/spyder/plugins/maininterpreter/widgets/status.py
+++ b/spyder/plugins/maininterpreter/widgets/status.py
@@ -16,7 +16,6 @@
 from qtpy.QtCore import QTimer, Signal
 
 # Local imports
-from spyder.api.translations import _
 from spyder.api.widgets.status import BaseTimerStatus
 from spyder.config.base import is_pynsist, running_in_mac_app
 from spyder.utils.conda import get_list_conda_envs
@@ -123,6 +122,7 @@ def _get_envs(self):
     def _get_env_info(self, path):
         """Get environment information."""
         path = path.lower() if os.name == 'nt' else path
+
         try:
             name = self.path_to_env[path]
         except KeyError:
@@ -140,6 +140,7 @@ def _get_env_info(self, path):
             version = get_interpreter_info(path)
             self.path_to_env[path] = name
             self.envs[name] = (path, version)
+
         __, version = self.envs[name]
         return f'{name} ({version})'
 
@@ -170,7 +171,12 @@ def get_envs(self):
 
     def update_envs(self, worker, output, error):
         """Update the list of environments in the system."""
-        self.envs.update(**output)
+        # This is necessary to avoid an error when the worker can't return a
+        # proper output.
+        # Fixes spyder-ide/spyder#20539
+        if output is not None:
+            self.envs.update(**output)
+
         for env in list(self.envs.keys()):
             path, version = self.envs[env]
             # Save paths in lowercase on Windows to avoid issues with


Test patch: