Error, Can't run the script

[buaaerhan]

Description

What steps will reproduce the problem?

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

import numpy as np
np.sin(2)

Please provide any additional information below

File "D:\InstalledSoftwares\Anaconda3.6\lib\site-packages\spyder\plugins\ipythonconsole.py", line 890, in run_script
self.execute_code(line, current_client, clear_variables)
File "D:\InstalledSoftwares\Anaconda3.6\lib\site-packages\spyder\plugins\ipythonconsole.py", line 936, in execute_code
sw.execute(to_text_string(to_text_string(lines)))
File "D:\InstalledSoftwares\Anaconda3.6\lib\site-packages\qtconsole\history_console_widget.py", line 47, in execute
source, hidden, interactive)
File "D:\InstalledSoftwares\Anaconda3.6\lib\site-packages\qtconsole\console_widget.py", line 631, in execute
self._execute(source, hidden)
File "D:\InstalledSoftwares\Anaconda3.6\lib\site-packages\qtconsole\frontend_widget.py", line 294, in _execute
msg_id = self.kernel_client.execute(source, hidden)
AttributeError: 'NoneType' object has no attribute 'execute'

Version and main components

• Spyder Version: 3.2.3
• Python Version: 3.6.1
• Qt Versions: 5.6.2, PyQt5 5.6 on Windows

Dependencies

pyflakes >=0.6.0 :  1.5.0 (OK)
pycodestyle >=2.3:  2.3.1 (OK)
pygments >=2.0   :  2.2.0 (OK)
pandas >=0.13.1  :  0.20.1 (OK)
numpy >=1.7      :  1.12.1 (OK)
sphi

[ccordoba12]

This is a duplicate of issue #5053 and it'll be fixed in 3.2.4.