on OSX the file creation date not available in os.stat

[klankschap]

BPO	8002
Nosy	@ronaldoussoren

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = 'https://github.com/ronaldoussoren'
closed_at = <Date 2010-04-18.19:36:22.908>
created_at = <Date 2010-02-23.15:21:31.070>
labels = ['OS-mac', 'type-feature']
title = 'on OSX the file creation date not available in os.stat'
updated_at = <Date 2010-04-18.19:36:22.907>
user = 'https://bugs.python.org/klankschap'

bugs.python.org fields:

activity = <Date 2010-04-18.19:36:22.907>
actor = 'ronaldoussoren'
assignee = 'ronaldoussoren'
closed = True
closed_date = <Date 2010-04-18.19:36:22.908>
closer = 'ronaldoussoren'
components = ['macOS']
creation = <Date 2010-02-23.15:21:31.070>
creator = 'klankschap'
dependencies = []
files = []
hgrepos = []
issue_num = 8002
keywords = []
message_count = 5.0
messages = ['99925', '99927', '100574', '100579', '103523']
nosy_count = 2.0
nosy_names = ['ronaldoussoren', 'klankschap']
pr_nums = []
priority = 'normal'
resolution = 'wont fix'
stage = None
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue8002'
versions = ['Python 2.6']

[klankschap]

OSX has a different interpretation of the file creation date.
a workaround is possible via libc.dylib stat64 but that in turn is not possible prior to OSX 10.5

[ronaldoussoren]

To be more precise: see bpo-8001.

The OSX 10.5 introduces a new version of stat 'stat64' that exposes additional information to posix-style programs, amongst which is the file creation date.

This field is not present in earlier editions of OSX and is also not present on other platforms. That is, the field is not the same as the "ctime" field which contains the timestamp for the last metadata change for a file.

[ronaldoussoren]

I've done some research: the st_birthtime field is available when the python executable is build using MACOSX_DEPLOYMENT_TARGET=10.5 (or later), not for 10.4.

Adding support for st_birthtime for MACOSX_DEPLOYMENT_TARGET=10.4 is possible but requires significant code duplication in posixmodule.c.

IMO it adding this support is not worth the effort or the additional code complexity.

[klankschap]

On Mar 7, 2010, at 13:08, Ronald Oussoren wrote:

IMO it adding this support is not worth the effort or the additional code complexity.

I do agree.
We have to look forwards ...

F

[ronaldoussoren]

I'm closing this issue as won't fix.

The additional fields are available if you build from source and target 10.5 or later (set 'MACOSX_DEPLOYMENT_TARGET=10.5' when you run configure).

My current plan is to have two installers for python 2.7 and 3.2: one is a 32-bit only version that runs on OSX 10.3 or later and one will be be a new version that supports 64-bit x86 code as well and requires OSX 10.5. This new installer won't suffer from this issue.