Cannot index dict_items in Python 3

[kwinkunks]

OK, I guess this tool is not meant for Python 3. In Python 3, items() on a dictionary must be cast to a list before you can index into it.

Running this:

from PyQt4.QtGui import QApplication
import segyviewlib
qapp = QApplication([])
l = segyviewlib.segyviewwidget.SegyViewWidget(fname)
l.show()

...I get this:

<ipython-input-8-e587dc28b0c1> in <module>()
      2 import segyviewlib
      3 qapp = QApplication([])
----> 4 l = segyviewlib.segyviewwidget.SegyViewWidget(fname)
      5 l.show()

~/anaconda/envs/python36/lib/python3.6/site-packages/segyviewlib-1.1.3.dev2+gc4b38be-py3.6.egg/segyviewlib/segyviewwidget.py in __init__(self, filename, show_toolbar, color_maps, width, height, dpi, segyioargs, parent)
     26         layout = QVBoxLayout()
     27 
---> 28         self._settings_window = SettingsWindow(self._context, self)
     29         self._help_window = HelpWindow(self)
     30 

~/anaconda/envs/python36/lib/python3.6/site-packages/segyviewlib-1.1.3.dev2+gc4b38be-py3.6.egg/segyviewlib/settingswindow.py in __init__(self, context, parent)
    143         self._tree.setColumnWidth(1, 180)
    144 
--> 145         self._build_tree(self._tree, tree_def, self._tree.invisibleRootItem())
    146 
    147         # layout

~/anaconda/envs/python36/lib/python3.6/site-packages/segyviewlib-1.1.3.dev2+gc4b38be-py3.6.egg/segyviewlib/settingswindow.py in _build_tree(self, tree_wdgt, tree_def, root)
    204 
    205     def _build_tree(self, tree_wdgt, tree_def, root):
--> 206         parent, children = tree_def.items()[0]
    207 
    208         # empty label /parent is a special case: either inline with the previous, or skip

TypeError: 'dict_items' object does not support indexing

[kwinkunks]

Update: after downgrading to NumPy v1.11, I got the tool close to working on my Python 3.6 setup, with some other fixes (see below).

I get the expected non-fatal warnings from NumPy about the indices.

Something is throwing a bunch of errors, but I can't see what:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
TypeError: invalid result from ArraySpinBox.validate()

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
TypeError: invalid result from ArraySpinBox.validate()

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
TypeError: invalid result from ArraySpinBox.validate()

The tool renders but is hung, with the spinning rainbow wheel (on macOS). I'm going to leave it alone now... I'm afraid I don't know a thing about Qt.

---

In _indexcontroller.py

def update_index(self, index):
    self.index_s_box.update_view(self._indexes, index)
    self.current_index = int(index)  # Index was turning into a float.
    self._update_label()

In colormapcombo.py

def itemText(self, index):
    return str(self.itemData(index, Qt.ToolTipRole))  # Object is already a string.

In layoutcombo.py

def _get_spec(self, index):
    user_data = self.itemData(index)
    return {str(key): value for key, value in user_data.items()}  # user_data is already a dict.

[jokva]

Hi,

Thanks for the report! You're right, this seems like a 2/3 incompatibility issue, and should be an easy fix (as you point out). It's not immediately obvious to me what's wrong with the spinbox or indices code, but we'll investigate it in the morning.