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<p>Hello Michele,</p>
<p>thanks for the report! I've implemented the new debug_monitor and
did some first investigations.</p>
<p>At least I found a solution which "works". It might be a
workaround till the final soulution is available. Just add
threaded=False as additional parameter, so you get</p>
<p>app.run(debug=True, threaded=False, passthrough_errors=True,
use_debugger=False, use_reloader=False)</p>
<p>I hope this helps for the moment.</p>
<p>Tobias</p>
<div class="moz-cite-prefix">Michele Petrazzo schrieb am 09.02.26 um
11:25:<br>
</div>
<blockquote type="cite"
cite="mid:CAGp2FGVFBr8e_h-BLDWpH+YNAxy9yx+J_NTDC=zw-sUTsujHEQ@mail.gmail.com">
<div dir="ltr">
<div>Hello,</div>
<div>I'm trying to use Eric to debug a simple Flask application,
but I think that there are some conflicts with Eric and
Flask's internal debugger.</div>
<div>I'm trying all the combination found on Eric debugger
("report all exceptions", "multiprocess" and so on) and also
all the Flask applications debug / reload and so on parameters
founds on: <a
href="https://flask.palletsprojects.com/en/stable/debugging/"
moz-do-not-send="true" class="moz-txt-link-freetext">https://flask.palletsprojects.com/en/stable/debugging/</a></div>
<div><br>
</div>
<div>But:</div>
<div>- with Flask debug (reload enabled by default), Eric cannot
follow the children spawn (this is the last problem if Eric
would be able to debug Flask error, but with Flask reload
enabled, Eric return with a "app.py has terminated with exit
code 0")</div>
<div>- with Flask debug on and reload not enabled
(use_reloader=False) without "report all exceptions" on Eric,
Eric starts but not catch exception and has a KeyError (see
below), and I see the errors only Eric terminal</div>
<div>- with Flask reload disabled without Eric breakpoint and
without errors, all goes well, but with breakpoints or errors:</div>
<div><br>
</div>
<div><i> File
"/opt/eric_ide/eric_env/lib/python3.13/site-packages/eric7/DebugClients/Python/../../../flask/app.py",
line 865, in dispatch_request<br>
return
self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
# type: ignore[no-any-return]<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^<br>
File
"/opt/eric_ide/eric_env/lib/python3.13/site-packages/eric7/DebugClients/Python/debug_monitor.py",
line 372, in __monitor_exception<br>
self.user_exception(excinfo, False)<br>
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^<br>
File
"/opt/eric_ide/eric_env/lib/python3.13/site-packages/eric7/DebugClients/Python/debug_monitor.py",
line 1091, in user_exception<br>
current_thread = self._dbgClient.threads[thread_id]<br>
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^<br>
KeyError: 133533733566144</i></div>
<div><br>
</div>
<div>Without "report all exceptions":</div>
<div><br>
</div>
<div><i> return
self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
# type: ignore[no-any-return]<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^<br>
File "/home/devel/flasktest/app.py", line 11, in error<br>
e = 1/0<br>
~^~<br>
ZeroDivisionError: division by zero</i></div>
<div><br>
</div>
<div>I have eric and flask just installed with a fresh env and
pip.</div>
<div><br>
</div>
<div>Now I have ended my ideas, so someone has tried and has a
working configurations with Eric and Flask?</div>
<div><br>
</div>
<div>Thansk a lot,</div>
<div>Michele</div>
<div><br>
</div>
<div>Simplest Flask app:</div>
<div>(venv) pip install Flask</div>
<div><br>
</div>
<div><app.py></div>
<div>from flask import Flask<br>
<br>
app = Flask(__name__)<br>
<br>
@app.route("/")<br>
def home():<br>
return "Hello, Flask!"<br>
<br>
@app.route("/error")<br>
def error():<br>
e = 1/0<br>
return e<br>
<br>
if __name__ == "__main__":<br>
app.run(debug=True)</div>
<div> # app.run( debug=True, passthrough_errors=True,
use_debugger=False, use_reloader=False) -> try any of this
combination<br>
)<br>
<br>
</div>
<div># python app.py</div>
<div>open web browser on <a href="http://127.0.0.1:5000"
moz-do-not-send="true" class="moz-txt-link-freetext">http://127.0.0.1:5000</a>
and after try <a href="http://127.0.0.1:5000/error"
moz-do-not-send="true" class="moz-txt-link-freetext">http://127.0.0.1:5000/error</a></div>
</div>
</blockquote>
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