Edit figure parameters: TypeError: argument 1 has unexpected type 'list'

[mspacek]

Using a tuple to designate a single colour in a plot command, like this:

plot(range(10), c=(0.5, 0.5, 0.5))

and then clicking on the "Edit curves line and axes parameter" button raises this TypeError:

Traceback (most recent call last):
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/backend_qt4.py", line 577, in edit_parameters
    figureoptions.figure_edit(axes, self)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/figureoptions.py", line 134, in figure_edit
    icon=get_icon('qt4_editor_options.svg'), apply=apply_callback)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 514, in fedit
    dialog = FormDialog(data, title, comment, icon, parent, apply)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 431, in __init__
    self.formwidget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 403, in setup
    widget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 378, in setup
    widget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 285, in setup
    field.addItems(value)
TypeError: QComboBox.addItems(QStringList): argument 1 has unexpected type 'list'

This is very related to #917.

[mspacek]

I just discovered that this:

plot(range(10), range(10), 'k', marker='o', ms=3)

also raises the exact same traceback and error:

Traceback (most recent call last):
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/backend_qt4.py", line 577, in edit_parameters
    figureoptions.figure_edit(axes, self)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/figureoptions.py", line 134, in figure_edit
    icon=get_icon('qt4_editor_options.svg'), apply=apply_callback)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 514, in fedit
    dialog = FormDialog(data, title, comment, icon, parent, apply)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 431, in __init__
    self.formwidget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 403, in setup
    widget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 378, in setup
    widget.setup()
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/qt4_editor/formlayout.py", line 285, in setup
    field.addItems(value)
TypeError: QComboBox.addItems(QStringList): argument 1 has unexpected type 'list'

[mspacek]

However, if I use

plot(range(10), range(10), 'k-o', ms=3)

instead, I get the exact same plot, and no error when I click on the "edit curve line and axes parameters button"

[efiring]

Confirmed with v1.2.x. I think this limitation has always been present.

[mdboom]

Closed by #2017.

[mspacek]

Thanks! That fixed the TypeError in both cases in the first post. But when I do this:

plot(range(10), c=(0.5, 0.5, 0.5))

and then click on the "Edit curves line and axes parameter" button, the line and marker colours show up as my default black instead of grey, so the dialog isn't being updated properly. Hitting Apply or OK changes them to black, without me actually changing anything in the dialog. Not a big deal though.