Variables disappear from Spyder 4.0 Variable Explorer

Problem Description

Variables intermittently disappear from Variable Explorer When running various code, a variable that was visible in the Variable Explorer disappears Sometimes, scrolling away from the area of list where the variable should be, then clicking the column heading once or twice, and scrolling back makes the variable appear

In this image the variable experiments, a Pandas dataframe, is missing: Here, after scrolling and sorting as noted, experiments now appears:

What steps reproduce the problem?

1. In some cases, running a code line that replaces the variable with a new value causes it to disappear, if it is not being displayed at present (i.e. if scrolled away). e.g. plot_name = study_name + ts.timestamp() + '.png' might cause plot_name to disappear
2. In other cases, if the code is run as a script, then Variable Explorer is checked, the variable may be missing

Note: Variable Explorer Options were tested. Following is the current configuration, which did not resolve the issue:

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

Expected outcome is that the variable appears in Variable Explorer as soon as it is created, and remains there until it is removed from the environment.

Paste Traceback/Error Below (if applicable)

PASTE TRACEBACK HERE

Versions

Spyder 4.0.0b5 Python 3.6.9 64-bit Qt 5.13.1 PyQt5 5.13.1 Windows 10

Dependencies

cloudpickle >=0.5.0 : 1.2.2 (OK) pygments >=2.0 : 2.4.2 (OK) qtconsole >=4.5.5 : 4.5.5 (OK) nbconvert >=4.0 : 5.6.0 (OK) sphinx >=0.6.6 : 2.2.0 (OK) pylint >=0.25 : 2.3.1 (OK) psutil >=0.3 : 5.6.3 (OK) qtawesome >=0.5.7 : 0.6.0 (OK) qtpy >=1.5.0 : 1.9.0 (OK) pickleshare >=0.4 : 0.7.5 (OK) zmq >=17 : 18.1.0 (OK) chardet >=2.0.0 : 3.0.4 (OK) numpydoc >=0.6.0 : 0.9.1 (OK) spyder_kernels >=1.5.0;<2.0.0: 1.5.0 (OK) qdarkstyle >=2.7 : 2.7 (OK) atomicwrites >=1.2.0 : 1.3.0 (OK) diff_match_patch >=20181111 : 20181111 (OK) watchdog : None (OK) keyring : None (OK) pexpect >=4.4.0 : 4.7.0 (OK) pympler : None (OK) sympy >=0.7.3 : None (NOK) cython >=0.21 : None (NOK) IPython >=4.0 : 7.8.0 (OK) matplotlib >=2.0.0 : 3.1.2 (OK) pandas >=0.13.1 : 0.25.2 (OK) numpy >=1.7 : 1.16.5 (OK) scipy >=0.17.0 : 1.3.1 (OK) pyls >=0.28.2;<0.29.0 : 0.28.3 (OK) rtree >=0.8.3 : 0.8.3 (OK)

PASTE DEPENDENCIES HERE

[eafpres]

What is your DataFrame title? Is it uppercase to start?

I was having an issue where not all my data was showing in variables explorer. It appeared to be just DataFrames not showing.

Clicking on the upper right corner there is a drop down menu. I un-clicked “Exclude Capitalized Reference” and my dataframes starting with capital letters started to show.

This seems too simple to be the solution to your problem but thought I’d throw in my half a cent.

Maybe click or unclick the option and refresh

This actually was fully fixed in recent releases. It was an actual bug and the excellent team solved it.

[eafpres]

Yes, it’s planned for a future release. The thing is I have some concerns about @impact27’s proposed solution, but I haven’t had time to test them, sorry.

Understand. My workaround is scrolling down and back and that almost always works. If I ever find anything that might shed more light on this I’ll definitely share.