Do never install from wheels

src/zc/buildout/easy_install.py

@@ -39,6 +39,8 @@ import tempfile
 import zc.buildout
 import warnings
 
+WHL_DIST = pkg_resources.EGG_DIST + 1
+
 warnings.filterwarnings(
     'ignore', '.+is being parsed as a legacy, non PEP 440, version')
 
@@ -545,7 +547,7 @@ class Installer:
         # Filter the available dists for the requirement and source flag
         dists = [dist for dist in index[requirement.project_name]
                  if ((dist in requirement)
-                     and
+                     and dist.precedence != WHL_DIST and
                      ((not source) or
                       (dist.precedence == pkg_resources.SOURCE_DIST)
                       )

[Thomas Gambier]

why do you need to redefine this variable ? Isn't it in pkg_ressources ?

[Julien Muchembled]

no, and not even in last revision of setuptools: https://github.com/pypa/setuptools/blob/317ad2c4c9edf793e65372e80ec2d64f4edf147f/setuptools/package_index.py#L127

[Julien Muchembled]

https://erp5js.nexedi.net/#/test_result_module/20210511-7E2437AC

/cc @tomo @jerome

[Julien Muchembled]

For some egg like plantuml, there's no tarball, only wheels, so I must change to accept wheels as fallback.

[Jérome Perrin]

is it only plantuml ? there are some other problems with this egg

[Julien Muchembled]

No idea, slapos-sr-testing fails during SR build and it can take a while to disable problematic eggs one by one.

[Jérome Perrin]

The issue with plantuml was https://github.com/dougn/python-plantuml/issues/12 I don't remember how I hit this bug, but it seems that we can install it with slapos, probably because something installs httplib2 before.

Anyway, my idea was that if it's only plantuml, we can maybe install plantuml differently, but it's highly probable that there are more eggs like this, so maybe the best is to make buildout do something like "prefer source distribution over wheels"

[Julien Muchembled]

There's also jsonschema that fails. But since there's a tarball, I guess the issue is related to setup dependency, apparently setuptools_scm.

[Thomas Gambier]

There's also jsonschema that fails. But since there's a tarball, I guess the issue is related to setup dependency, apparently setuptools_scm.

This should have been fixed a long time ago :

slapos!768 (merged)