Indentation error on Visual Studio Code on a Mac (again)

Question

I am a newbie trying to use Python (2.17.15 via Anaconda) on Visual Stodio Code on my Mac. I have the following simple code:

def function(x):
    y = x + 2
    return y

This code is giving me the usual trouble, an indentation error:

   return y
    ^
IndentationError: unexpected indent
>>>     return y
  File "<stdin>", line 1
    return y
    ^
IndentationError: unexpected indent
>>>

Needless to say that Jupyter or Spyder have no problem with this. I checked that on VSC tab gives 4 spaces. All similar questions are related to this, but I cannot fix it.

Other, built in functions of Python work fine.

Please give me some help or tips since I do not know how to escape this.

UPDATE

Installing again Python3 this simple code DOES work on Sublime but still not on VS Code. I still get the same error in VS Code.

UPDATE2

So, another update. If I change from return to print and instead of shift-command debug and run the code then it works.

Any idea what is going on?

Asked By: Marion

||

Source

Answer 1

This looks like it’s because you’re running the code with Shift+ENTER.

VS Code has the following 2 bindings for Shift_ENTER:

I believe that you’re seeing the 2nd of these, which says “Run Selection/Line in Python Terminal. I suspect you have the focus on the return y line, and so it’s only running that single line of code.

If, instead of Shift+ENTER, you use the Run Code command in VS Code, you should see it work fine:

You might well think “OK…so if I select all of the code this will work, right?” and I agree…this feels like it should work. However, I see a similar issue. I’ll see if I can work out why, but for the moment you can use the Run Code command in VS Code and that will do what you want. If you highlight the code you want to run, that will limit what gets executed.

Run Code can be executed with Ctrl+Alt+N

It looks like this issue (that selected code doesn’t run correctly with Shift+ENTER) is a bug that’s being tracked by here: https://github.com/Microsoft/vscode-python/issues/2837

And a work around (not ideal) is to add code before/after your function that is NOT indented, and then select and execute those lines too:

print("this...")

def function(x):
    y = x + 2
    return y

print("...now works if you select all these lines and Shift+ENTER!")

Answered By: Martin Peck

Answer 2

This is a bug from the python extension, which you need to run chunks of code in the interactive mode.

So in the example code below:

for lastRun in list(d_RunPanelsPresent.keys()): 

    # some indented commands
    logFile = f"/nexusb/Novaseq/{lastRun}/logPPscript.txt"
    if not os.path.isfile(logFile):
        with open(logFile, 'w+') as f:
            pass
    else:
        pass

If I highlight as follows (note where the cursor is):

I will get an error.

The solution is to highlight the code from the very left of the code editor, as shown below:

This works for me 100% of the time.

Answered By: BCArg

Answer 3

Forgetting a semicolon at the end of the function definition produces the same error.

Answered By: Magnus

Indentation error on Visual Studio Code on a Mac (again)

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