v8 Errors: input line numbers missing

I quite like the new (v8) simple format for syntax and other compile errors from Input, like Input In [25]. But compared to the old (v7) error header with pseudo-files (e.g. File "<ipython-input-6-9e0b5ab16b5e>", line 4), the line number has gone missing. There are tools which parse iPython’s errors which will be missing this line information. This is also particularly problematic for syntax/indentation errors in Plain style with multi-line input:

In [25]: if True:
    ...:     same_var = 1
    ...: else:
    ...:    same_var = 2
    ...:     same_var = 1
    ...:     same_var = 1
  Input In [25]
    same_var = 1
    ^
IndentationError: unexpected indent

I think Input In [25], line 5 would be perfect, or, for consistency with the file version, Input In [25]:5.

[jdtsmith]

Hi @MrMino, just checking on the status of this issue. I have tooling standing by to learn the final decision on restoring line numbers for input blocks across the board. Thanks.

[jdtsmith]

In case you haven’t checked in on PR #13560 recently, I got confirmation that the <cell line...> stuff was no longer needed and can be reverted. I also went ahead a just pushed the small change changing “Input cell” -> “Cell” for a short and consistent layout. Let me know if you see anything else needed in #13560 before it could be merged.