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Signed-off-by: Josh Morman <jmorman@gnuradio.org>
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Previously, two versions of the `qtwidget` functions existed,
`qwidget()` and `pyqwidget()`, with the only difference being that
`qwidget()` returned a pointer to the `QWidget` object managed by the
corresponding block, while `pyqwidget()` returned that same pointer, but as
an integer (Or `PyLong` in this case).
While `qwidget()` is used by C++ code accessing the widgets,
`pyqwidget()` is only used for the python interface. This makes these
two methods redundant, thus this commit entirely removes `pyqwidget()`,
and modifies the `qwidget()` python wrapper to behave like
`pyqwidget()`. Note that we can be fairly confident that this change
will not effect potential users of `qwidget()`, because any invocation
on the objects previously returned by `qwidget()` would cause a
segmentation fault.
This commit also fixes a memory leak:
Internally, the `pyqwidget()` functions were returning a PyLong `PyObject *`,
which was then upwrapped in a pybind trampoline without decrementing
the reference count of that python object.
Signed-off-by: David Winter <david.winter@analog.com>
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Signed-off-by: Josh Morman <jmorman@perspectalabs.com>
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All of the removed `from __future__ import` were needed in older
versions of Python (mostly 2.5.x and below) but later became mandatory
in most versions of Python 3 hence are not necessary anymore.
More specifically, according to __future__.py[1]:
- unicode_literals is part of Python since versions 2.6.0 and 3.0.0;
- print_function is part of Python since versions 2.6.0 and 3.0.0;
- absolute_import is part of Python since versions 2.5.0 and 3.0.0;
- division is part of Python since versions 2.2.0 and 3.0.0;
Get rid of those unnecessary imports to slightly clean up the codebase.
[1] https://github.com/python/cpython/blob/master/Lib/__future__.py
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Also fixes up some other missing moves.
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analog: also fixed having a default arg for noise_source seed in Python.
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possible.
Passing make and make test. Examples and apps need testing.
gr-filter relies on sig_source and noise_source, so can't remove them from core.
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