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pyqtBoundSignal.disconnect()'s slot parameter is optional #103

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altendky
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@altendky altendky commented Oct 4, 2020

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@altendky altendky mentioned this pull request Oct 4, 2020
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PyQt5-stubs/QtCore.pyi Outdated Show resolved Hide resolved
@altendky altendky merged commit 343aada into python-qt-tools:master Oct 4, 2020
@altendky altendky deleted the pyqtBoundSignal_disconnect_optional branch October 4, 2020 17:31
bluebird75 pushed a commit to bluebird75/PyQt5-stubs that referenced this pull request Aug 24, 2021
…disconnect_optional

`pyqtBoundSignal.disconnect()`'s `slot` parameter is optional
bluebird75 added a commit to bluebird75/PyQt5-stubs that referenced this pull request Apr 26, 2022
The-Compiler added a commit to The-Compiler/astroid that referenced this pull request May 10, 2022
Discussed here:
pylint-dev#1531 (comment)

PyQt supports calling .disconnect() without any arguments in order to
disconnect all slots:
https://www.riverbankcomputing.com/static/Docs/PyQt6/signals_slots.html#disconnect

Strictly speaking, slot=None is a wrong call, as actually passing None
does not work:
python-qt-tools/PyQt5-stubs#103

However, pylint/astroid does not support overloads needed to properly
express this: pylint-dev/pylint#5264

So, while this is "wrong", it's less wrong than before - without this
change, pylint expects a mandatory argument, thus raising a
false-positive here:

    from PyQt5.QtCore import QTimer
    t = QTimer()
    t.timeout.connect(lambda: None)
    t.timeout.disconnect()

despite running fine, pylint complains:

    test.py:4:0: E1120: No value for argument 'slot' in method call (no-value-for-parameter)

while with this change, things work fine.
Pierre-Sassoulas pushed a commit to pylint-dev/astroid that referenced this pull request May 12, 2022
* qt brain: Make slot argument optional for disconnect()

Discussed here:
#1531 (comment)

PyQt supports calling .disconnect() without any arguments in order to
disconnect all slots:
https://www.riverbankcomputing.com/static/Docs/PyQt6/signals_slots.html#disconnect

Strictly speaking, slot=None is a wrong call, as actually passing None
does not work:
python-qt-tools/PyQt5-stubs#103

However, pylint/astroid does not support overloads needed to properly
express this: pylint-dev/pylint#5264

So, while this is "wrong", it's less wrong than before - without this
change, pylint expects a mandatory argument, thus raising a
false-positive here:

    from PyQt5.QtCore import QTimer
    t = QTimer()
    t.timeout.connect(lambda: None)
    t.timeout.disconnect()

despite running fine, pylint complains:

    test.py:4:0: E1120: No value for argument 'slot' in method call (no-value-for-parameter)

while with this change, things work fine.
Pierre-Sassoulas pushed a commit to pylint-dev/astroid that referenced this pull request Jun 13, 2022
* qt brain: Make slot argument optional for disconnect()

Discussed here:
#1531 (comment)

PyQt supports calling .disconnect() without any arguments in order to
disconnect all slots:
https://www.riverbankcomputing.com/static/Docs/PyQt6/signals_slots.html#disconnect

Strictly speaking, slot=None is a wrong call, as actually passing None
does not work:
python-qt-tools/PyQt5-stubs#103

However, pylint/astroid does not support overloads needed to properly
express this: pylint-dev/pylint#5264

So, while this is "wrong", it's less wrong than before - without this
change, pylint expects a mandatory argument, thus raising a
false-positive here:

    from PyQt5.QtCore import QTimer
    t = QTimer()
    t.timeout.connect(lambda: None)
    t.timeout.disconnect()

despite running fine, pylint complains:

    test.py:4:0: E1120: No value for argument 'slot' in method call (no-value-for-parameter)

while with this change, things work fine.
Pierre-Sassoulas pushed a commit to pylint-dev/astroid that referenced this pull request Jun 13, 2022
* qt brain: Make slot argument optional for disconnect()

Discussed here:
#1531 (comment)

PyQt supports calling .disconnect() without any arguments in order to
disconnect all slots:
https://www.riverbankcomputing.com/static/Docs/PyQt6/signals_slots.html#disconnect

Strictly speaking, slot=None is a wrong call, as actually passing None
does not work:
python-qt-tools/PyQt5-stubs#103

However, pylint/astroid does not support overloads needed to properly
express this: pylint-dev/pylint#5264

So, while this is "wrong", it's less wrong than before - without this
change, pylint expects a mandatory argument, thus raising a
false-positive here:

    from PyQt5.QtCore import QTimer
    t = QTimer()
    t.timeout.connect(lambda: None)
    t.timeout.disconnect()

despite running fine, pylint complains:

    test.py:4:0: E1120: No value for argument 'slot' in method call (no-value-for-parameter)

while with this change, things work fine.
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2 participants