Frozen importlib._bootstrap on second import

Issue Report Checklist

• Searched the issues page for similar reports
• Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• [na] Could not reproduce inside jupyter qtconsole (if console-related)
• Tried basic troubleshooting (if a bug/error)
  • Restarted Spyder
  • Reset preferences with spyder --reset
  • Reinstalled the latest version of Anaconda
  • Tried the other applicable steps from the Troubleshooting Guide
• Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

On a second import, my script is giving a KeyError from importlib._bootstrap instead of properly reloading a submodule. If I manually enter the single line in the script in the ipython prompt, it works without issue.

What steps reproduce the problem?

1. Install PyConTurb using the instructions here. (Sorry, I couldn’t reproduce it with another package.)
2. Create a module error.py with a single line: from pyconturb.io.hawc2 import dat_to_df. 2a. If you can’t recreate this error, I’m running spyder from a different environment than my pyconturb environment and you might need to recreate my environment setup. I can provide details on this if needed.
3. Run script once. It should work. Run it again, you get the error reprinted below.

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

I expect a one-line module to be able to run more than once, but instead I get the traceback printed in the next section.

Paste Traceback/Error Below (if applicable)

Traceback (most recent call last):

  File "<ipython-input-10-2437b3b92216>", line 1, in <module>
    runfile('C:/Users/rink/git/master-esperanza/rink_code/test_hawc2_turb.py', wdir='C:/Users/rink/git/master-esperanza/rink_code')

  File "C:\Users\rink\AppData\Local\Continuum\miniconda3\envs\espe\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 827, in runfile
    execfile(filename, namespace)

  File "C:\Users\rink\AppData\Local\Continuum\miniconda3\envs\espe\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Users/rink/git/master-esperanza/rink_code/test_hawc2_turb.py", line 10, in <module>
    from pyconturb.io.hawc2 import dat_to_df

  File "<frozen importlib._bootstrap>", line 971, in _find_and_load

  File "<frozen importlib._bootstrap>", line 951, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 890, in _find_spec

  File "<frozen importlib._bootstrap>", line 864, in _find_spec_legacy

  File "C:\Users\rink\AppData\Local\Continuum\miniconda3\envs\espe\lib\site-packages\IPython\external\qt_loaders.py", line 48, in find_module
    if path:

  File "<frozen importlib._bootstrap_external>", line 1000, in __len__

  File "<frozen importlib._bootstrap_external>", line 982, in _recalculate

  File "<frozen importlib._bootstrap_external>", line 978, in _get_parent_path

KeyError: 'pyconturb'

Versions

Spyder environment:

• Spyder version: 3.3.4
• Python version: 3.6
• Qt version: 5.9.7
• PyQt version: 5.9.2

PyConTurb environment (also Python 3.6):

• spyder-kernels: 0.4.4

Other info:

• Operating System name/version: Windows 10 (sorry…)

Dependencies

IPython >=4.0     :  7.2.0 (OK)
cython >=0.21     :  None (NOK)
jedi >=0.9.0      :  0.13.2 (OK)
matplotlib >=2.0.0:  3.0.2 (OK)
nbconvert >=4.0   :  5.3.1 (OK)
numpy >=1.7       :  1.15.4 (OK)
pandas >=0.13.1   :  0.24.0 (OK)
pycodestyle >=2.3 :  2.4.0 (OK)
pyflakes >=0.6.0  :  2.0.0 (OK)
pygments >=2.0    :  2.3.1 (OK)
pylint >=0.25     :  2.2.2 (OK)
qtconsole >=4.2.0 :  4.4.3 (OK)
rope >=0.9.4      :  0.11.0 (OK)
sphinx >=0.6.6    :  1.8.2 (OK)
sympy >=0.7.3     :  None (NOK)

[ccordoba12]

Thanks for reporting. I don’t understand the cause of this error but we’ll try to figure it out.

@dalthviz, please follow @jennirinker instructions to see if you’re able to reproduce this error.

[ccordoba12]

Closing because this is not an Spyder issue.