Repository: spyder-ide/spyder

Issue:
Online Help Crash
## Description

### What steps will reproduce the problem?

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

1. type numpy in the serach field in the On Line Help View
2. click the search button

this error submission windows appears






### Traceback
```python-traceback
0.01s - Debugger warning: The os.path.realpath.__code__.co_filename (ntpath.py)
0.00s - is not absolute, which may make the debugger miss breakpoints.
0.00s - Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.
```

## Versions

* Spyder version: 5.4.1  (standalone)
* Python version: 3.8.10 64-bit
* Qt version: 5.15.2
* PyQt5 version: 5.15.7
* Operating System: Windows 10

### Dependencies

```
# Mandatory:
atomicwrites >=1.2.0                 :  1.4.1 (OK)
chardet >=2.0.0                      :  5.1.0 (OK)
cloudpickle >=0.5.0                  :  2.2.0 (OK)
cookiecutter >=1.6.0                 :  2.1.1 (OK)
diff_match_patch >=20181111          :  20200713 (OK)
intervaltree                         :  None (OK)
IPython >=7.31.1;<9.0.0              :  8.7.0 (OK)
jedi >=0.17.2;<0.19.0                :  0.18.2 (OK)
jellyfish >=0.7                      :  0.9.0 (OK)
jsonschema >=3.2.0                   :  4.17.3 (OK)
keyring >=17.0.0                     :  23.13.1 (OK)
nbconvert >=4.0                      :  7.2.7 (OK)
numpydoc >=0.6.0                     :  1.5.0 (OK)
paramiko >=2.4.0                     :  2.12.0 (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                         :  5.9.4 (OK)
pygments >=2.0                       :  2.13.0 (OK)
pylint >=2.5.0;<3.0                  :  2.15.9 (OK)
pylint_venv >=2.1.1                  :  2.3.0 (OK)
pyls_spyder >=0.4.0                  :  0.4.0 (OK)
pylsp >=1.7.0;<1.8.0                 :  1.7.0 (OK)
pylsp_black >=1.2.0                  :  1.2.1 (OK)
qdarkstyle >=3.0.2;<3.1.0            :  3.0.3 (OK)
qstylizer >=0.2.2                    :  0.2.2 (OK)
qtawesome >=1.2.1                    :  1.2.2 (OK)
qtconsole >=5.4.0;<5.5.0             :  5.4.0 (OK)
qtpy >=2.1.0                         :  2.3.0 (OK)
rtree >=0.9.7                        :  1.0.1 (OK)
setuptools >=49.6.0                  :  65.6.3 (OK)
sphinx >=0.6.6                       :  6.0.0 (OK)
spyder_kernels >=2.4.1;<2.5.0        :  2.4.1 (OK)
textdistance >=4.2.0                 :  4.5.0 (OK)
three_merge >=0.1.1                  :  0.1.1 (OK)
watchdog                             :  2.2.0 (OK)
zmq >=22.1.0                         :  24.0.1 (OK)

# Optional:
cython >=0.21                        :  0.29.32 (OK)
matplotlib >=3.0.0                   :  3.6.2 (OK)
numpy >=1.7                          :  1.24.1 (OK)
pandas >=1.1.1                       :  1.5.2 (OK)
scipy >=0.17.0                       :  1.9.3 (OK)
sympy >=0.7.3                        :  1.11.1 (OK)

# Spyder plugins:
spyder_terminal.terminalplugin 1.2.2 :  1.2.2 (OK)
```



Discussion:
Hey @lsinstruments, thanks for reporting and the instructions to reproduce this problem.

@dalthviz, could you check if this happens to you with the Windows installer?
I was able to reproduce this :+1:

Resolving patch:
diff --git a/spyder/plugins/onlinehelp/widgets.py b/spyder/plugins/onlinehelp/widgets.py
--- a/spyder/plugins/onlinehelp/widgets.py
+++ b/spyder/plugins/onlinehelp/widgets.py
@@ -9,6 +9,7 @@
 """
 
 # Standard library imports
+import os
 import os.path as osp
 import pydoc
 import sys
@@ -22,6 +23,7 @@
 # Local imports
 from spyder.api.translations import _
 from spyder.api.widgets.main_widget import PluginMainWidget
+from spyder.config.base import is_pynsist
 from spyder.plugins.onlinehelp.pydoc_patch import _start_server, _url_handler
 from spyder.widgets.browser import FrameWebView, WebViewActions
 from spyder.widgets.comboboxes import UrlComboBox
@@ -67,6 +69,11 @@ def spyder_safeimport(path, forceload=0, cache={}):
 except Exception:
     pass
 
+# Needed to prevent showing a warning message regarding debugging
+# See spyder-ide/spyder#20390
+if is_pynsist():
+    os.environ["PYDEVD_DISABLE_FILE_VALIDATION"] = "1"
+
 
 class PydocServer(QThread):
     """


Test patch: