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Title: Python py_compile error message inconsistent and missing newline
Type: behavior Stage: resolved
Components: Library (Lib) Versions: Python 3.4, Python 3.5, Python 2.7
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: akshetp, ashkop, berker.peksag, python-dev, r.david.murray
Priority: normal Keywords: easy, patch

Created on 2015-03-30 11:58 by akshetp, last changed 2022-04-11 14:58 by admin. This issue is now closed.

File name Uploaded Description Edit
issue23811.patch ashkop, 2015-04-07 13:29 review
Messages (6)
msg239598 - (view) Author: Akshet Pandey (akshetp) Date: 2015-03-30 11:58
On the following test file (

class Solution:
  def repeatedNumber(self, A):
    test = 1
      return []

Running python -m py_compile return the following error message:
Sorry: IndentationError: unexpected indent (, line 6)

But without a newline on stderr at the end of the message. This causes some problems with scripts that expect a newline and new my particular case with reading stderr on docker where docker just ignore the line if it doesn't end in a newline.

Also, this message differs from the runtime error message:

  File "", line 6
    return []
IndentationError: unexpected indent

Would it be possible to at least add in a newline and at best, change the message to be consistent with the runtime error message?

I will trying to look at the code and see if I can write a patch but it will take me some time.
msg239618 - (view) Author: R. David Murray (r.david.murray) * (Python committer) Date: 2015-03-30 15:58
I can confirm that the bugs is demonstrated by copying the text below into a normal unix text file.
msg240211 - (view) Author: Alex Shkop (ashkop) * Date: 2015-04-07 13:29
This patch adds new line symbol. For some reason py_compile module prints only SyntaxErrors with traceback. All other exceptions are printed with "Sorry:" and in one line.
msg240921 - (view) Author: Roundup Robot (python-dev) (Python triager) Date: 2015-04-14 15:58
New changeset 1e139b3c489e by Berker Peksag in branch '3.4':
Issue #23811: Add missing newline to the PyCompileError error message.

New changeset d39fe1e112a3 by Berker Peksag in branch 'default':
Issue #23811: Add missing newline to the PyCompileError error message.
msg240923 - (view) Author: Roundup Robot (python-dev) (Python triager) Date: 2015-04-14 16:02
New changeset 22790c4f3b16 by Berker Peksag in branch '2.7':
Issue #23811: Add missing newline to the PyCompileError error message.
msg240924 - (view) Author: Berker Peksag (berker.peksag) * (Python committer) Date: 2015-04-14 16:03
Thank you Alex.
Date User Action Args
2022-04-11 14:58:14adminsetgithub: 67999
2015-04-14 16:03:33berker.peksagsetstatus: open -> closed

nosy: + berker.peksag
messages: + msg240924

resolution: fixed
stage: needs patch -> resolved
2015-04-14 16:02:29python-devsetmessages: + msg240923
2015-04-14 15:58:05python-devsetnosy: + python-dev
messages: + msg240921
2015-04-07 13:29:30ashkopsetfiles: + issue23811.patch

nosy: + ashkop
messages: + msg240211

keywords: + patch
2015-03-30 15:59:39r.david.murraysetcomponents: + Library (Lib), - Interpreter Core
2015-03-30 15:58:40r.david.murraysettype: enhancement -> behavior
versions: + Python 3.5
keywords: + easy
nosy: + r.david.murray

messages: + msg239618
stage: needs patch
2015-03-30 11:58:58akshetpcreate