Run Selection/Line in python terminal broken after last update

[GPhilo]

Environment data

• VS Code version: 1.28.0
• Extension version (available under the Extensions sidebar): 2018.9.0
• OS and version: Windows 10 1803, x64
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.6
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): conda
• Relevant/affected Python packages and their versions: -

Actual behavior

After the latest update of vscode, trying to execute any python block via shift+Enter appends an extra newline at the end of each line, which breaks execution of loops.

Expected behavior

The code runs in the terminal

Steps to reproduce:

1. Copy the following in a python file:

print(32)
for i in range(4):
    print(i)

2. Select and run via shift+enter

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

>>> for i in range(4):
...
  File "<stdin>", line 2

    ^
IndentationError: expected an indented block
>>>     print(i)
  File "<stdin>", line 1
    print(i)
    ^
IndentationError: unexpected indent
>>>

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help)
(The following repeats multiple times, console was cleared before running, errors show only on the first run in a new terminal)

bootstrap-window.js:195 [uncaught exception]: TypeError: Cannot read property 'isWrapped' of undefined

c:\Users\Filippo\AppData\Local\Programs\Microsoft VS Code\resources\app\node_modules.asar\vscode-xterm\lib\Buffer.js:205 Uncaught TypeError: Cannot read property 'isWrapped' of undefined
    at Buffer.getWrappedRangeForLine (c:\Users\Filippo\AppData\Local\Programs\Microsoft VS Code\resources\app\node_modules.asar\vscode-xterm\lib\Buffer.js:205)
    at BufferStringIterator.next (c:\Users\Filippo\AppData\Local\Programs\Microsoft VS Code\resources\app\node_modules.asar\vscode-xterm\lib\Buffer.js:305)
    at Linkifier._linkifyRows (c:\Users\Filippo\AppData\Local\Programs\Microsoft VS Code\resources\app\node_modules.asar\vscode-xterm\lib\Linkifier.js:65)
    at c:\Users\Filippo\AppData\Local\Programs\Microsoft VS Code\resources\app\node_modules.asar\vscode-xterm\lib\Linkifier.js:53

[patrys]

Aren't you missing a colon after the for loop?

[GPhilo]

@patrys Copy-paste mistake when writing the sample, the error is still there with the colon in place (the issue was updated)

[d3r3kk]

I cannot reproduce this on Ubuntu 18.04, but there have been changes to the activation of conda environments specific to Windows. @DonJayamanne can you have a look on Windows?

[DonJayamanne]

I can replicate on Windows, but not Mac.

[rosjoh]

I can confirm the same error on Windows.

[JeppeDruedahl]

I can also confirm the same error

[aminevsaziz]

same for me!

[dataders]

confirm me and my coworker on Windows with Python 3.6 but not 2.6

[jmazar]

Same problem for me on Windows python 3.6.

[jsarneja]

I confirm the issue in windows10. Any idea by when this could be solved?

[brettcannon]

@jsarneja no ETA as we're busy dealing with a nasty conda + PowerShell issue.

[sean-doody]

Confirmed on Windows, not on Mac.

[ChandanVerma]

Is the issue resolved? Finding the same issue on windows 10 python 3.6.5

[sean-doody]

Is the issue resolved? Finding the same issue on windows 10 python 3.6.5

Nope; not resolved. No ETA at the moment.

[DonJayamanne]

Hi everyone, we've created a fix for this, please could you download the development version and help us verify the fix.
Install instructions and fix can be downloaded here https://github.com/Microsoft/vscode-python/blob/master/CONTRIBUTING.md#development-build

[DonJayamanne]

@ChandanVerma @pomoneomarx

Please note the issue has been resolved, if you look above, you can see that a PR was merged yesterday to resolve this, we need to verify the fix, hope you can help with that.

[WayOfKings]

Installed the .vsix and restarted twice. Then ran some test code. Problem seems to persist. Ran line 11 first, then 13 to 15.

OS and version: Windows 7 Professional

Anaconda 3-5.3.0

[ajjitn]

The development version works for me running the same code

OS and Version: Windows 10 Home
Python 3.6.5 64-bit
Anaconda 3-5.3.0

[WayOfKings]

It does work now that I noticed I had to manually click into the terminal box and hit enter for the output to appear. But having to do that every time on a Run Selection/Line is going to get inconvenient. Otherwise it just pauses on the 3 dots...

[ajjitn]

Also noticed a new bug with the development version. Anytime I type something into a python script,the following error always pops up in the Output Pane

[sean-doody]

I am back in business with this Development Build fix. Thank you! I see others are noticing other bugs; I'll keep an eye out.

[aminevsaziz]

@ChandanVerma @pomoneomarx

Please note the issue has been resolved, if you look above, you can see that a PR was merged yesterday to resolve this, we need to verify the fix, hope you can help with that.

@DonJayamanne this fix is:

1. working ;)
2. no "enter" is required after sending the code to the terminal.
3. Using 'IPython' instead of 'python' work perfectly and doesn't require pressing "enter" at the end to validate.
4. Thanks everyone for the fix its was an annoying bug that persist for months.

Details:
Windows 10, 8.1 and 8.1
Python 3.5, 3.6.6 and 3.7(64-bit all from Anaconda)

[brettcannon]

FYI 2018.9.1 was just released with the fix for this!