Mailing List Archive: Python 3 subversion bindings

Python 3 subversion bindings

Jul 5, 2021, 9:55 AM

Post #1 of 6 (667 views)

Hello,

I recently upgraded my Trac to the development version 1.5.3, mainly
because of the Python 3.X support. Doing this caused some grief but I
managed to get it working, all but the SVN support.

I know this is missing the Subversion Python bindings, this is normally
provided by the Ubuntu package python-subversion but this is a Python 2.7
package. I have been trying to find a way to get these bindings installed
for Python 3.X but to no avail. See the log messages below.

What would be the way to get these bindings?

2021-07-05 14:02:26,539 Trac[env] INFO: --------------------------------
environment startup [Trac 1.5.3] --------------------------------

2021-07-05 14:02:26,721 Trac[svn_fs] INFO: Failed to load Subversion
bindings

Traceback (most recent call last):

File "/usr/lib/python3.8/cmd.py", line 214, in onecmd

func = getattr(self, 'do_' + cmd)

AttributeError: 'TracAdmin' object has no attribute 'do_changeset'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File
"/usr/local/lib/python3.8/dist-packages/tracopt/versioncontrol/svn/svn_fs.py",
line 200, in __init__

_import_svn()

File
"/usr/local/lib/python3.8/dist-packages/tracopt/versioncontrol/svn/svn_fs.py",
line 72, in _import_svn

from svn import fs, repos, core, delta

ModuleNotFoundError: No module named 'svn'

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Re: Python 3 subversion bindings [ In reply to ]

rjollos at gmail

Jul 21, 2021, 6:37 PM

Post #2 of 6 (666 views)

Permalink

On Monday, July 5, 2021 at 11:40:55 AM UTC-7 Tristan wrote:

> Hello,
> I know this is missing the Subversion Python bindings, this is normally
> provided by the Ubuntu package python-subversion but this is a Python 2.7
> package. I have been trying to find a way to get these bindings installed
> for Python 3.X but to no avail. See the log messages below.

Which Ubuntu version and what is the version of Subversion provided by that
Ubuntu? Worst case, you may have to build and install Subversion from
source.

Ryan

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Re: Python 3 subversion bindings [ In reply to ]

elxdraco at gmail

Aug 18, 2021, 1:37 AM

Post #3 of 6 (657 views)

Permalink

Ubuntu version: 20.04
Subversion: 1.13.0-3

Someone noted that I would need 1.14 for it to support Python 3. I have yet
to try to build it from source.

The joys of Python 2/3 incompatibility.

On Thursday, 22 July 2021 at 01:37:23 UTC RjOllos wrote:

>
>
> On Monday, July 5, 2021 at 11:40:55 AM UTC-7 Tristan wrote:
>
>> Hello,
>>
> I know this is missing the Subversion Python bindings, this is normally
>> provided by the Ubuntu package python-subversion but this is a Python 2.7
>> package. I have been trying to find a way to get these bindings installed
>> for Python 3.X but to no avail. See the log messages below.
>
>
> Which Ubuntu version and what is the version of Subversion provided by
> that Ubuntu? Worst case, you may have to build and install Subversion from
> source.
>
> Ryan
>

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Re: Python 3 subversion bindings [ In reply to ]

support at tidbitsoftware

Jan 7, 2022, 2:21 PM

Post #4 of 6 (588 views)

Permalink

Any updates on this? I'm in the same bind: Ubuntu 20.04, development copy
of Trac (1.5.4 at this point), everything is migrated successfully from a
project running Trac 1.4.3, but the repository connection is obviously
broken.

On Wednesday, August 18, 2021 at 10:35:14 AM UTC-7 Tristan wrote:

> Ubuntu version: 20.04
> Subversion: 1.13.0-3
>
> Someone noted that I would need 1.14 for it to support Python 3. I have
> yet to try to build it from source.
>
> The joys of Python 2/3 incompatibility.
>
> On Thursday, 22 July 2021 at 01:37:23 UTC RjOllos wrote:
>
>>
>>
>> On Monday, July 5, 2021 at 11:40:55 AM UTC-7 Tristan wrote:
>>
>>> Hello,
>>>
>> I know this is missing the Subversion Python bindings, this is normally
>>> provided by the Ubuntu package python-subversion but this is a Python 2.7
>>> package. I have been trying to find a way to get these bindings installed
>>> for Python 3.X but to no avail. See the log messages below.
>>
>>
>> Which Ubuntu version and what is the version of Subversion provided by
>> that Ubuntu? Worst case, you may have to build and install Subversion from
>> source.
>>
>> Ryan
>>
>

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Re: Python 3 subversion bindings [ In reply to ]

support at tidbitsoftware

Jan 7, 2022, 2:41 PM

Post #5 of 6 (588 views)

Permalink

As a follow up, there does appear to be a package containing alternate
Subversion bindings for Python 3:

https://packages.ubuntu.com/focal/python3-subvertpy

however, I installed it and got the same error in Python 3,

>>> from svn import core
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'svn'

It looks like python3-subversion exists for Ubuntu 21 and up:

https://packages.ubuntu.com/search?keywords=python3-subversion

so it may be that an OS upgrade is necessary (if you are tied to APT and/or
do not want to deal with possible dependency issues).
On Friday, January 7, 2022 at 2:21:04 PM UTC-8 Tidbit Software wrote:

> Any updates on this? I'm in the same bind: Ubuntu 20.04, development copy
> of Trac (1.5.4 at this point), everything is migrated successfully from a
> project running Trac 1.4.3, but the repository connection is obviously
> broken.
>
> On Wednesday, August 18, 2021 at 10:35:14 AM UTC-7 Tristan wrote:
>
>> Ubuntu version: 20.04
>> Subversion: 1.13.0-3
>>
>> Someone noted that I would need 1.14 for it to support Python 3. I have
>> yet to try to build it from source.
>>
>> The joys of Python 2/3 incompatibility.
>>
>> On Thursday, 22 July 2021 at 01:37:23 UTC RjOllos wrote:
>>
>>>
>>>
>>> On Monday, July 5, 2021 at 11:40:55 AM UTC-7 Tristan wrote:
>>>
>>>> Hello,
>>>>
>>> I know this is missing the Subversion Python bindings, this is normally
>>>> provided by the Ubuntu package python-subversion but this is a Python 2.7
>>>> package. I have been trying to find a way to get these bindings installed
>>>> for Python 3.X but to no avail. See the log messages below.
>>>
>>>
>>> Which Ubuntu version and what is the version of Subversion provided by
>>> that Ubuntu? Worst case, you may have to build and install Subversion from
>>> source.
>>>
>>> Ryan
>>>
>>

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Re: Python 3 subversion bindings [ In reply to ]

rjollos at gmail

Jan 11, 2022, 12:54 PM

Post #6 of 6 (587 views)

Permalink

On Friday, January 7, 2022 at 2:41:20 PM UTC-8 sup...@tidbitsoftware.com
wrote:

> As a follow up, there does appear to be a package containing alternate
> Subversion bindings for Python 3:
>
> https://packages.ubuntu.com/focal/python3-subvertpy
>
> however, I installed it and got the same error in Python 3,
>
> >>> from svn import core
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
>
> ModuleNotFoundError: No module named 'svn'
>
>
Right, it's not compatible with subvertpy, py-vn, and other third-party
Subversion bindings.

> It looks like python3-subversion exists for Ubuntu 21 and up:
>
> https://packages.ubuntu.com/search?keywords=python3-subversion
>
> so it may be that an OS upgrade is necessary (if you are tied to APT
> and/or do not want to deal with possible dependency issues).
>

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