`TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object` when using arrows on keyboard
Author: cfigueroa-glitchCreated Aug 31, 2026Updated Sep 16, 2026
Labelstype:Bugcomponent:EditorOS:MacOSPackage:PyQt
Description
What steps will reproduce the problem?
Using or pressing arrows on keyboard to go through code. There is no problem when I skip a line with the Return button, but when I press the right or left arrows error comes up
Traceback
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python object
Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.14/site-packages/spyder/widgets/mixins.py", line 1560, in inputMethodQuery
response = QPlainTextEdit.inputMethodQuery(self, query)
TypeError: unable to convert a C++ 'MimeDataSelection' instance to a Python objectVersions
- Spyder version: 6.1.5 (conda)
- Python version: 3.14.6 64-bit
- Qt version: 6.11.0
- PyQt6 version: 6.11.0
- Operating System: macOS-14.5-arm64-arm-64bit-Mach-O
Dependencies
# Mandatory:
aiohttp >=3.11.2 : 3.14.1 (OK)
applaunchservices >=0.3.0 : 0.3.0 (OK)
asyncssh >=2.14.0,<3.0.0 : 2.21.1 (OK)
bcrypt >=4.3.0 : 5.0.0 (OK)
chardet >=5.2.0,<8.0.0 : 5.2.0 (OK)
cloudpickle >=0.5.0 : 3.1.2 (OK)
cookiecutter >=1.6.0 : 2.7.1 (OK)
diff_match_patch >=20181111 : 20200713 (OK)
github >=2.3.0 : 2.9.1 (OK)
importlib_metadata >=4.6.0 : 8.7.1 (OK)
intervaltree >=3.0.2 : 3.2.1 (OK)
IPython >=8.15.0,<10.0.0,!=8.17.1,!=9.1.0,!=9.2.0,!=9.3.0,!=9.4.0 : 9.15.0 (OK)
ipython_pygments_lexers >=1.0 : 1.1.1 (OK)
jedi >=0.17.2,<0.20.0 : 0.19.2 (OK)
jellyfish >=0.7 : 1.2.1 (OK)
jsonschema >=3.2.0 : 4.25.1 (OK)
keyring >=17.0.0 : 25.7.0 (OK)
markdown_it >=3.0.0 : 4.0.0 (OK)
nbconvert >=4.0 : 7.17.1 (OK)
numpydoc >=0.6.0 : 1.10.0 (OK)
packaging >=20.0 : 26.0 (OK)
parso >=0.7.0,<0.9.0 : 0.8.7 (OK)
pexpect >=4.4.0 : 4.9.0 (OK)
pickleshare >=0.4 : 0.7.5 (OK)
psutil >=5.3 : 7.2.2 (OK)
pygments >=2.0 : 2.20.0 (OK)
pylint >=3.1,<5 : 4.0.6 (OK)
pylint_venv >=3.0.2 : 3.0.3 (OK)
pyls_spyder >=0.4.0 : 0.4.0 (OK)
pylsp >=1.14.0,<1.15.0 : 1.14.0 (OK)
pylsp_black >=2.0.0,<3.0.0 : 2.0.0 (OK)
pylsp_ruff >=2.3.0,<3.0.0 : 2.3.0 (OK)
pyuca >=1.2 : 1.2 (OK)
qdarkstyle >=3.2.0,<3.3.0 : 3.2.3 (OK)
qstylizer >=0.2.2 : 0.2.4 (OK)
qtawesome >=1.4.1,<1.5.0 : 1.4.2 (OK)
qtconsole >=5.7.2,<5.8.0 : 5.7.2 (OK)
qtpy >=2.4.0 : 2.4.3 (OK)
rtree >=0.9.7 : 1.4.1 (OK)
sphinx >=7.2.0 : 9.1.0 (OK)
spyder_kernels >=3.1.5,<3.2.0 : 3.1.5 (OK)
superqt >=0.6.2,<1.0.0 : 0.8.1 (OK)
textdistance >=4.2.0 : 4.6.2 (OK)
three_merge >=0.1.1 : 0.1.1 (OK)
watchdog >=0.10.3 : 6.0.0 (OK)
yarl >=1.9.4 : 1.24.2 (OK)
zmq >=24.0.0 : 27.1.0 (OK)
# Optional:
cython >=0.21 : None (NOK)
matplotlib >=3.0.0 : 3.11.0 (OK)
numpy >=1.7 : 2.4.6 (OK)
pandas >=1.1.1 : 3.0.3 (OK)
scipy >=0.17.0 : 1.18.0 (OK)
sympy >=0.7.3 : 1.14.0 (OK)Source: spyder-ide/spyder