Spyder: Extra closing parenthesis added after new line

[abizzle85]

Description

What steps will reproduce the problem?

Versions

Python 3.7.4
Spyder 4.0.0

Issue

Automatic insertion of parentheses, braces and brackets: ON

An extra closing parenthesis is added when typing over the auto-added parenthesis. This happens when working inside a previous bracket.

Reproduce

import pandas as pd

df = pd.DataFrame({
    'a': [1, 2, 3],
    'b': [4, 5, 6]
    })

def paren_example():
    return( # Hit return
        df['a'].max())) # Extra parenthesis added when typing .max()

Versions

• Spyder version: 4.0.0
• Python version: 3.7.4
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

cloudpickle >=0.5.0          :  1.2.2 (OK)
pygments >=2.0               :  2.5.2 (OK)
qtconsole >=4.6.0            :  4.6.0 (OK)
nbconvert >=4.0              :  5.6.1 (OK)
sphinx >=0.6.6               :  2.3.0 (OK)
pylint >=0.25                :  2.4.4 (OK)
psutil >=0.3                 :  5.6.7 (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 >=1.8.1;<2.0.0:  1.8.1 (OK)
qdarkstyle >=2.7             :  2.7 (OK)
atomicwrites >=1.2.0         :  1.3.0 (OK)
diff_match_patch >=20181111  :  20181111 (OK)
intervaltree                 :  None (OK)
watchdog                     :  None (OK)
keyring                      :  None (OK)
pexpect >=4.4.0              :  4.7.0 (OK)
pympler                      :  None (OK)
sympy >=0.7.3                :  1.5 (OK)
cython >=0.21                :  0.29.14 (OK)
IPython >=4.0                :  7.10.2 (OK)
matplotlib >=2.0.0           :  3.1.1 (OK)
pandas >=0.13.1              :  0.25.3 (OK)
numpy >=1.7                  :  1.17.4 (OK)
scipy >=0.17.0               :  1.3.2 (OK)
pyls >=0.31.2;<0.32.0        :  0.31.2 (OK)
rtree >=0.8.3                :  0.8.3 (OK)

[ccordoba12]

@dalthviz, please check if you're able to reproduce this one.

[dalthviz]

@ccordoba12 I can't reproduce this one (but maybe I'm not understanding how to trigger the error?):

@abizzle85 could you maybe upload a .gif for a better understanding of the way to get the extra parenthesis? (you can use something like LICECap) Thanks!

[abizzle85]

@dalthviz Yes I was able to. It happens when typing over the closing parenthesis in ".max()". Usually when I type over auto-generated parenthesis, it understands that parenthesis was already created, and does not duplicate it. Unless you are using the arrow key to skip over the closing parenthesis?

[dalthviz]

Thanks @abizzle85 for the feedback, now I understand the issue and I can replicate it :+1:

@ccordoba12 should I work on this one?

[ccordoba12]

Yes, please do.