Run Selection/Line in Python Terminal does not work with empty spaces

[mnarodovitch]

Environment data

• VS Code version: 1.21.1
• Extension version (available under the Extensions sidebar): 2018.2.1
• OS and version: Ubuntu 16.04
• Python version (& distribution if applicable, e.g. Anaconda): 3.6
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: -

Actual behavior

Selecting

if True:
    #do some stuff

    #do more stuff
    print("should print")

and running "Run Selection/Line in Python Terminal" [ / python.execSelectionInTerminal ] produces an error.

Expected behavior

Console should print

Logs

>>> if True:
...     #do some stuff
...
  File "<stdin>", line 3

    ^
IndentationError: expected an indented block
>>>     #do more stuff
...     print("should print")
  File "<stdin>", line 2
    print("should print")
    ^
IndentationError: unexpected indent

[mnarodovitch]

Is it possible, that this function should execute the normalizedCode?

https://github.com/Microsoft/vscode-python/blob/master/src/client/terminals/codeExecution/codeExecutionManager.ts

private async executeSelection(executionService: ICodeExecutionService): Promise<void> {
    const activeEditor = this.documentManager.activeTextEditor;
    if (!activeEditor) {
        return;
    }
    const codeExecutionHelper = this.serviceContainer.get<ICodeExecutionHelper>(ICodeExecutionHelper);
    const codeToExecute = await codeExecutionHelper.getSelectedTextToExecute(activeEditor!);
    const normalizedCode = codeExecutionHelper.normalizeLines(codeToExecute!);
    if (!normalizedCode || normalizedCode.trim().length === 0) {
        return;
    }

    await executionService.execute(codeToExecute!, activeEditor!.document.uri);

}

[fishhead108]

Confirm, the same issue here

VS Code version: 1.21.1
Extension version (available under the Extensions sidebar): 2018.2.1
OS and version: Arch Linux 4.15.12-1
Python version (& distribution if applicable, e.g. Anaconda): 3.6
Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
Relevant/affected Python packages and their versions: -

[brettcannon]

I think what people are after is a feature enhancement to strip blank lines from the code sent to the REPL to prevent the REPL from interpreting the code's newline as the end of a block.

[mnarodovitch]

Actually, when I select some correct code and I press on the "execute selection" button, then I would expect that the selection will be executed. This is not the case.
The feature, which strips blank lines is already implimented and the executeSelection function uses this feature to strip the lines. But then, the executeSelection executes the raw code.
I would propose to change this issue it to type-bug again, unless you didn't intend to implement this feature. This could be possibly easily fixed by replacing
await executionService.execute(codeToExecute!, activeEditor!.document.uri);
with await executionService.execute(normalizedCode!, activeEditor!.document.uri);

[brettcannon]

@michaelnarodovitch if you want to submit a PR for your proposed change we would happily review it.