This avoids a bug when saving which sets the file name for the wrong tab, and makes it clearer what you are being asked to save.

Re #22809

Storing a reference to the QApplication object globally at
module scope causes the QApplication object to be destroyed
very late in Python's tear down process. This seems to cause
random segfaults with PyQt5 that can be remedied by using
object attributes so that the references are cleaned up much
sooner.

They currently segfault when importing readline. This seems
to be fixed for IPython 5

Starting it without stdin under Python 3 seems to cause
a segfault in readline.

Martyn Gigg authored 6 years ago and Gigg, Martyn Anthony committed 6 years ago

Replaces keep/hold with explicit requests for over plotting of 1D lines.

The error appears to be solved in newer versions of sip / python-qt5,
but that isn't what is available on rhel7. This removes the ability to
have a different `MantidDisplayBase` from the workbench, but it doesn't
appear to be a necessary abstraction for now.

Avoids progress reporting arrow overlapping the line numbers.

Python reports line numbers based on the code context it has. These
can be wrong if the selection is part of a larger file. Padding the code
then allows the raw numbers being reported to be used.

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

Merge done to enable documentation be be fixed, because of removal of
alias directive and addition of related algorithms directive.

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

Attempts to fix a random test failure with the jupyter console on
macOS by ensuring that widgets are garbage collected promptly.
Refs #22063

._update_indent() was changed not to take arguments and IPython.core.usage.quick_guide was removed.

In test_execute_async_returns_failure_on_runtime_error_and_captures_expected_stack the comment was causing an IndentationError, changing it to a docstring fixes the problem. I don't think this is related to IPython but probably a python 3.6 problem.

traceback.format_exception is supposed to ignore the tb argument if it is None but
in 3.4 the current traceback is always printed
https://github.com/python/cpython/commit/c3f417dc47b3a9564608c98cd176c530d9ebdf09#diff-e57ff53a569d0ebbe201ad0c102ee27e

Adds numpy and matplotlib to startup code.
Also silently executes a new interpreter as it starts so that the
completion api is populated.

Refs #21567

This required ensuring that the log diplay can have the correct default
priority.
Refs #21567

Fixes 2D plotting for WorkspaceGroups.
Refs #21567

This is just a thin wrapper around pcolormesh.
Refs #21567

Refs #21567

Refs #21567

Refs #21567

Refs #21566

Error bar curves are hidden from legends.
Also adds a title to the axes.
Refs #21567

Refs #21567

The string name of the class must be passed in or the registration has no effect in Python.