# mne qt browser: Positional argument error results when trying to adjust Overview-Modes.

**URL:** <https://mne.discourse.group/t/mne-qt-browser-positional-argument-error-results-when-trying-to-adjust-overview-modes/6467>\
**Category:** Support & Discussions\
**Tags:** qt-browser\
**Created:** [March 3, 2023, 8:25pm UTC](https://mne.discourse.group/t/mne-qt-browser-positional-argument-error-results-when-trying-to-adjust-overview-modes/6467 "2023-03-03T20:25:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![PaulF](https://avatars.discourse-cdn.com/v4/letter/p/eb9ed0/32.png) [@PaulF](https://mne.discourse.group/u/PaulF)\
**Post date:** [March 3, 2023, 8:25pm UTC](https://mne.discourse.group/t/mne-qt-browser-positional-argument-error-results-when-trying-to-adjust-overview-modes/6467/1 "2023-03-03T20:25:29Z")

</div>

- MNE version: 1.3.1
- mne-qt-browser 0.4.0
- macOS 12.6

I’m experimenting with the mne qt browser. My code:

```python
import mne
mne.set_config('MNE_BROWSE_RAW_SIZE','20,10')
file='sample_data.edf'
raw=mne.io.read_raw_edf(file,preload=True)
raw.plot(show=True,block=True, duration=20,bgcolor='w',color='b', bad_color='r')

```

When I try to select “z-score” or “empty” under the Overview-Modes, I receive the following error:

```python
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/mne_qt_browser/_pg_figure.py", line 2673, in call
    return meth_(*args_, **kwargs,** kwargs_)
TypeError: _overview_radio_clicked() takes 1 positional argument but 2 positional arguments (and 2 keyword-only arguments) were given

```

---

<div class="post-metadata">

**Author:** ![mscheltienne](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/mscheltienne/32/827_2.png) [@mscheltienne](https://mne.discourse.group/u/mscheltienne)\
**Post date:** [March 6, 2023, 3:12pm UTC](https://mne.discourse.group/t/mne-qt-browser-positional-argument-error-results-when-trying-to-adjust-overview-modes/6467/2 "2023-03-06T15:12:24Z")

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Hello,

I can reproduce with the sample dataset. I’ve opened an issue here:

> <https://github.com/mne-tools/mne-qt-browser/issues/156>
>
> Originally reported on the forum \[here\](https://mne.discourse.group/t/mne-qt-bro…wser-positional-argument-error-results-when-trying-to-adjust-overview-modes/6467). I can reproduce on MNE/MNE-QT-Browser main with:
> 
> \`\`\`
> from mne import set\_config
> from mne.datasets import sample
> from mne.io import read\_raw\_fif
> 
> 
> set\_config("MNE\_BROWSE\_RAW\_SIZE", "20,10")
> 
> directory = sample.data\_path() / "MEG" / "sample"
> raw = read\_raw\_fif(directory / "sample\_audvis\_raw.fif", preload=True)
> raw.plot(
> show=True, block=True, duration=20, bgcolor="w", color="b", bad\_color="r"
> )
> \`\`\`
> 
> Changing to Z-score fails with:
> 
> \`\`\`
> TypeError: MNEQtBrowser.\_overview\_radio\_clicked() takes 1 positional argument but 2 positional arguments (and 2 keyword-only arguments) were given.
> \`\`\`
> 
> \[Screencast from 03-06-2023 04:10:59 PM.webm\](https://user-images.githubusercontent.com/73893616/223150387-e06ced55-fdc2-4a9e-9508-1c9713e1c286.webm)

Best,  
Mathieu