Repository: spyder-ide/spyder

Issue:
Drag & drop error in the Help pane
## Description

### What steps will reproduce the problem?

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

open spyder
Drag any python file from file explorer to spyder application
Spyder reports internal problem

### Traceback
```python-traceback
Traceback (most recent call last):
  File "C:\Program Files\Spyder\pkgs\spyder\plugins\help\widgets.py", line 855, in handle_link_clicks
    self.rich_text.load_url(url)
  File "C:\Program Files\Spyder\pkgs\spyder\plugins\help\widgets.py", line 188, in load_url
    self.load(qurl)
AttributeError: 'RichText' object has no attribute 'load'
```

## Versions

* Spyder version: 5.0.1 
* Python version: 3.7.9
* Qt version: 5.12.10
* PyQt5 version: 5.12.3
* 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           :  1.6.0 (OK)
cookiecutter >=1.6.0          :  1.7.2 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree                  :  None (OK)
IPython >=7.6.0               :  7.22.0 (OK)
jedi =0.17.2                  :  0.17.2 (OK)
jsonschema >=3.2.0            :  3.2.0 (OK)
keyring >=17.0.0              :  23.0.1 (OK)
nbconvert >=4.0               :  6.0.7 (OK)
numpydoc >=0.6.0              :  1.1.0 (OK)
paramiko >=2.4.0              :  2.7.2 (OK)
parso =0.7.0                  :  0.7.0 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.8.0 (OK)
pygments >=2.0                :  2.8.1 (OK)
pylint >=1.0                  :  2.7.4 (OK)
pyls >=0.36.2;<1.0.0          :  0.36.2 (OK)
pyls_black >=0.4.6            :  0.4.6 (OK)
pyls_spyder >=0.3.2           :  0.3.2 (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.1.10 (OK)
qtawesome >=1.0.2             :  1.0.2 (OK)
qtconsole >=5.0.3             :  5.0.3 (OK)
qtpy >=1.5.0                  :  1.9.0 (OK)
rtree >=0.8.3                 :  0.9.4 (OK)
setuptools >=39.0.0           :  56.0.0 (OK)
sphinx >=0.6.6                :  3.5.4 (OK)
spyder_kernels >=2.0.1;<2.1.0 :  2.0.1 (OK)
textdistance >=4.2.0          :  4.2.1 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog                      :  1.0.2 (OK)
zmq >=17                      :  22.0.3 (OK)

# Optional:
cython >=0.21                 :  0.29.23 (OK)
matplotlib >=2.0.0            :  3.4.1 (OK)
numpy >=1.7                   :  1.19.3 (OK)
pandas >=1.1.1                :  1.2.4 (OK)
scipy >=0.17.0                :  1.6.2 (OK)
sympy >=0.7.3                 :  1.8 (OK)
```



Discussion:
Hey @kalyaneces, thanks for reporting. I can confirm this bug and we'll try to fix it in our next release (5.2.0), to be released next month.

Resolving patch:
diff --git a/spyder/plugins/help/widgets.py b/spyder/plugins/help/widgets.py
--- a/spyder/plugins/help/widgets.py
+++ b/spyder/plugins/help/widgets.py
@@ -195,8 +195,7 @@ def load_url(self, url):
             qurl = url
         else:
             qurl = QUrl(url)
-
-        self.load(qurl)
+        self.webview.load(qurl)
 
     def clear(self):
         self.set_html('', self.webview.url())


Test patch: