Autocomplete does not work properly for some libraries

[ghost]

Description of your problem

Autocomplete does not work properly for some libraries. So if we "import numpy", we can later use "numpy.autocomplete". But if we deal with cv2, things are different.

Example bellow

What steps will reproduce the problem?

1.1. import cv2
1.2. cv2.autocomplete suggest cv2
1.3. cv2.cv2.no autocomplete

So does not work.

But:
2.1. import cv2 as cv2
2.2. cv2.autocomplete suggest cv2
2.3. cv2.cv2.autocomplete for cv2

So this one gets me there, but with an extra step. And I cannot run like that, I need to remove extra cv2

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

In a case of "2.3" I can get autocomplete that I need, but I need to remember to delete this extra cv2. Basically, I want to get cv2.autocomplete for cv2

Additional information

This issue only happens in the editor. Console works fine.

Versions and main components

• Spyder Version: 3.2.0
• Python Version: 3.5.3. 64bit
• Qt Version: 5.6.2
• PyQt Version: 5.6
• Operating system: Windows 10

Dependencies

IPython >=4.0 : 6.1.0 (OK)
cython >=0.21 : 0.26 (OK)
jedi >=0.9.0 : 0.9.0 (OK)
nbconvert >=4.0 : 5.2.1 (OK)
numpy >=1.7 : 1.13.1 (OK)
pandas >=0.13.1 : 0.20.3 (OK)
pycodestyle >=2.3: 2.3.1 (OK)
pyflakes >=0.6.0 : 1.5.0 (OK)
pygments >=2.0 : 2.2.0 (OK)
pylint >=0.25 : 1.6.4 (OK)
qtconsole >=4.2.0: 4.3.0 (OK)
rope >=0.9.4 : 0.10.5 (OK)
sphinx >=0.6.6 : 1.3.1 (OK)
sympy >=0.7.3 : 1.1.1 (OK)

[ccordoba12]

@andfoy, can you reproduce this on Windows?

[andfoy]

This is an actual error related to the packaging of OpenCV, while jedi and other autocompletion engines make suggestions based on the contents of plain python sources, OpenCV is a compiled library packaged on a pyd file that cannot be analysed, unfortunately. We're not the only editor that presents this issue:

https://stackoverflow.com/questions/18672087/autocomplete-for-opencv-python-in-windows-not-working

https://stackoverflow.com/questions/43093400/code-completion-is-not-working-for-opencv-and-python

autocomplete-python/autocomplete-python#268

https://stackoverflow.com/questions/43231766/visual-studio-weird-behavior-of-auto-complete-for-opencv-python

[yaceben]

Does not work for any libraries for me, e.g. pattern, numpy, nltk, etc.

Python 2.7.13 64bits, Qt 5.6.2, PyQt5 5.6 on Linux (Fedora 24) installed through pip.

IPython >=4.0;<6.0:  5.4.1 (OK)
cython >=0.21     :  0.26 (OK)
jedi >=0.9.0      :  0.10.2 (OK)
nbconvert >=4.0   :  5.2.1 (OK)
numpy >=1.7       :  1.11.0 (OK)
pandas >=0.13.1   :  0.18.0 (OK)
psutil >=0.3      :  5.2.2 (OK)
pycodestyle >=2.3 :  2.3.1 (OK)
pyflakes >=0.5.0  :  1.6.0 (OK)
pygments >=2.0    :  2.2.0 (OK)
pylint >=0.25     :  1.7.2 (OK)
qtconsole >=4.2.0 :  4.3.0 (OK)
rope >=0.9.4      :  0.10.5 (OK)
sphinx >=0.6.6    :  1.6.3 (OK)
sympy >=0.7.3     :  1.0 (OK)

Did not try Python 3.5 yet as pattern library is incompatible.

[andfoy]

@yaceben I think your error is unrelated to this issue (Precompiled library autocompletion). Please open a new issue with this information

[yaceben]

@andfoy Alright, will do. Thanks

[andfoy]

@ccordoba, I think we should close this one

[bcolsen]

I can't reproduce this using latest anaconda and spyder master.

[ccordoba12]

It seems this is solved now, as @MadsDyrmann pointed out.