Variable explorer with binary data hangs spyder

[Diti24]

Description

After some investigation I finally found the cause (not the solution)
loading binary data in a variable in a variable makes the spyder IDE hang.
This happens only if the Variable exploer is enabled and "Esclude unsupported data types" option is not flagged.

What steps will reproduce the problem?

f=open('/tmp/20160530_185413__hmo1002.dat', 'rb')
a=f.read()
type(a)
Out[3]: bytes
len(a)
Out[4]: 2896

If the above sequence is perfomed with the Variable Explorer enabled and "Esclude unsupported data types" option is not flagged, the IDE will hang...

What is the expected output? What do you see instead?

Please provide any additional information below
the test data (which is not huge 2896 bytes) is attaced

Version and main components

• Spyder Version: 2.3.8
• Python Version: 3.4.4
• Qt Versions: 4.8.7, PyQt4 (API v2) 4.11.4 on Linux

Optional dependencies

pyflakes >=0.6.0   :  1.1.0 (OK)
pep8 >=0.6         :  1.7.0 (OK)
pygments >=1.6     :  2.1.1 (OK)
IPython >=1.0      :  4.1.2 (OK)
zmq >=2.1.11       :  15.2.0 (OK)
qtconsole >=4.0    :  4.2.0 (OK)
pandas >=0.13.1    :  0.18.0 (OK)
sphinx >=0.6.6     :  1.3.5 (OK)
psutil >=0.3       :  4.1.0 (OK)
rope >=0.9.2       :  0.9.4-1 (OK)
jedi >=0.8.1;<0.9.0:  0.9.0 (NOK)
matplotlib >=1.0   :  1.5.1 (OK)
sympy >=0.7.3      :  1.0 (OK)
pylint >=0.25      :  0.25.1 (OK)

[Nodd]

Yes, there is a big issue with the variable explorer currently. In your case the data is rather small so it's not a performance issue but a bug somewhere.

[ccordoba12]

Could you please upload a copy of 20160530_185413__hmo1002.dat somewhere to test this problem in our side? Thanks :-)

[Diti24]

Hi,
I did not notice that is was not uploded, sorry, now in zip format should work
20160530_185413__hmo1002.dat.zip

[jitseniesen]

I can reproduce this with 3.0.0b2 but not with current head. I think this may be a duplicate of #3031.

[jitseniesen]

@Diti24 , if I'm right then upgrading spyder to version 2.3.9 should fix the issue.

[Diti24]

@jitseniesen, thenks. About 2.3.9 well if I do conda upgrade I remain to 2.3.8... shall I do a manual installation? Shall I do a manual installation or m I missing something

Following is my conda output
"""
conda upgrade spyder
Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ....
Solving package specifications: .........
All requested packages already installed.
packages in environment at /mnt/disk2/opt/anaconda3:

spyder 2.3.8 py34_1
"""

[jitseniesen]

Sorry, even though I use anaconda I don't really understand it well, so you need somebody else. All I can see is that it works for me. Maybe if you specify the required version number by saying conda install spyder=2.3.9 it gives you a hint if there is a problem with a dependency or something like that. Or maybe conda info says something useful. Hopefully somebody else knows what's going on.

[ccordoba12]

@Diti24, the problem is Spyder packages for Python 3.4 are not ready. You can update by doing

conda remove spyder
pip install spyder

[Diti24]

Thank,
can confirm it works with spyder 2.3.9