Trac trunk requiring Genshi "0.6dev_r960" but only "0.6dev_r0" available

[Tony]

I installed Trac Trunk today, Genshi Trunk and Babel Trunk. After creating a new environment as usual, when trying to run the project it was requesting Genshi 0.6dev_r960, but in my Genshi install I was getting the .egg as Genshi-0.6dev_r0-py2.5-win32.egg.

Note that I tried the complete Trac, Genshi and Babel installation many times with Python 2.5.4 and 2.6.2, I used easy_install and tried to install by downloading (SVN) their source code and doing a setup.py.

I solved the problem by just changing the egg name to Genshi-0.6dev_r960-py2.5-win32.egg

I think that by mistake this egg name is wrong, or Trac is looking for the wrong version of Genshi, or the trunk version of Genshi is wrong.

[Christian Boos]

Replying to Tony:

I installed Trac Trunk today, Genshi Trunk and Babel Trunk.

Well, that's wrong, as of today, Trac trunk needs ​Genshi:source:branches/experimental/advanced-i18n and Babel 0.9.4, as stated in wiki:TracL10N and the milestone:0.12.

It seems that this information is easily overlooked. It would be helpful if you could tell us in which places you looked for informations and where else we would need to indicate those requirements.

After creating a new environment as usual, when trying to run the project it was requesting Genshi 0.6dev_r960, but in my Genshi install I was getting the .egg as Genshi-0.6dev_r0-py2.5-win32.egg.

See also #8362 which discusses that issue. As that other ticket is already closed, let's use the present ticket for tracking the resolution of this problem.

[Tony]

Maybe by not getting the ​Genshi:source:branches/experimental/advanced-i18n was the cause of problems, ill try it and post the results, but its strange that Genshi Trunk is of an older version than this one.

[Tony]

It have not worked. I did a SVN Checkout from ​http://svn.edgewall.org/repos/genshi/branches/experimental/advanced-i18n/ and installed. The egg was with the same name as I said. After renaming it it worked.

[osimons]

I think this is Subversion 1.6+ that has yet again changed formats in checkout, and setuptools not being able to parse revision properly. I see it too with 1.6.2 and now 1.6.3 that I recently upgraded to on my dev setup.

You're using 'svn --version' 1.6.x, right?

[Christian Boos]

Right, the problem with svn 1.6 is well known (​http://bugs.python.org/setuptools/issue64) but I think we have now to find a workaround, as the fix upstream is taking way too much time to be applied.

Anyway requiring 'Genshi≥0.6dev-r960' misses its purpose as this also matches Genshi trunk, which is wrong. So I think we should simply require 'Genshi≥0.6dev', as this is not worse and at least would avoid the current problem with setuptools.

Then, make it clear by other means that the ​genshi:source:branches/experimental/advanced-i18n branch is required.

For example:

setup.py

@@ -70 +70 @@
 
     install_requires = [
         'setuptools>=0.6b1',
-        'Genshi>=0.6dev-r960'
+        'Genshi>=0.6dev'
     ],
     extras_require = {
         'Babel': ['Babel>=0.9.4'],
@@ -121 +121 @@
 
     **extra
 )
+
+print """
+Note: currently Trac 0.12dev *requires* Genshi advanced-i18n,
+      which can be obtained from the repository:
+
+      svn checkout http://svn.edgewall.org/repos/genshi/branches/experimental/advanced-i18n/ genshi-i18n
+
+      Make sure you're using that version and not Genshi from trunk,
+      as that version is not 100% compatible with Trac trunk.
+"""
+

(probably with some refinements, like only showing the notice for install, develop and bdist* targets)

[Remy Blank]

I have applied the first part of the patch in comment:6 in [8602], as my newly-installed build hosts fail due to this (I had to reinstall Genshi in my virtualenvs, and I had updated to Subversion 1.6).

[Christian Boos]

I wonder if we shouldn't put simply an svn:externals pointing to the genshi dependency. People checking out Trac trunk will then get the appropriate version of Genshi.

That would be useful not only for the current situation (where we could point to advanced-i18n), but also later, for switching back to Genshi trunk, or when we have Trac 0.12-stable, for selecting the corresponding stable/0.6.x. Avoiding "known bad" versions would also be possible that way.

[Remy Blank]

Replying to cboos:

I wonder if we shouldn't put simply an svn:externals pointing to the genshi dependency. People checking out Trac trunk will then get the appropriate version of Genshi.

Interesting. People would still have to remember to install the checked-out version, instead of relying on easy_install to fetch it for them, though.

[Christian Boos]

Now that setuptools-0.6c10/11 is out with svn 1.6.x support and Genshi trunk is usable again we should probably add a 'Genshi>=0.6dev-r1072' requirement again.

[Christian Boos]

Done so in [8788].

[admin@…]

This seems to still be a problem.

I have setup tools 0.6c11 when running easy_install http://svn.edgewall.org/repos/trac/trunk it throws the following

Processing dependencies for Trac==0.12dev-r0
Searching for Genshi>=0.6dev-r1072
Reading http://pypi.python.org/simple/Genshi/
Reading http://genshi.edgewall.org/
Reading http://genshi.edgewall.org/wiki/Download
No local packages or download links found for Genshi>=0.6dev-r1072
error: Could not find suitable distribution for Requirement.parse('Genshi>=0.6dev-r1072')

[Remy Blank]

Until Genshi 0.6 is released, you must install Genshi from SVN:

easy_install http://svn.edgewall.org/repos/genshi/trunk

[Laurens Blanckenborg <laurens@…>]

Replying to rblank:

Until Genshi 0.6 is released, you must install Genshi from SVN:

easy_install http://svn.edgewall.org/repos/genshi/trunk

As I don't know where to put this suggestion, I decided to post it here. Please inform me if there's a more suitable way to make a suggestion like this.

Today, I decided to upgrade my Trac-environment after using my current environment (12dev r8206) for more than a year. Everything went OK, except for the Genshi error as stated in this ticket (r0-issue).

The problem was easily solved by updating setuptools to the newest setuptools (0.6c11), but I couldn't find that solution quickly in the Installation Guide, so I had to search for it. Via Google I found ​some messages which put me on the right track.

My suggestion is to add a remark to the Installation Guide, so that other users don't need to search for it. Something like this:

…

• ​Genshi, ​trunk, from svn, minimum required revision is ​[G1072], current ​[G1092] works fine as well.
  Note: ​setuptools ≥ 0.6c11 is required to install Genshi, ​trunk, from svn.
  

…

But… I'm not sure if 0.6c10 will work, so I decided to add a comment here instead of editing the Install Guide itself.