bug#35625: Python3 Cannot Find Existing Shared Library within guix environment

[Jesse Gibbons <jgibbons2357@gmail.com>]

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The good news is this bug is no longer an impediment to installing the
package because I took a(n arguably foolish) risk and disabled the tests
in the package definition (see attachment: rednotebook.scm). The bad
news is this bug persists when I run the installed package. When I
install rednotebook and run it, I get an error like the following:

Adding /gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/lib/python3.7/site-packages
to sys.path 2019-05-19 18:00:57,995 INFO     Writing log to file
"/home/jesse/.rednotebook/rednotebook.log" 2019-05-19 18:00:57,995
INFO     System encoding: utf-8 2019-05-19 18:00:57,995 INFO
Language code: en_US 2019-05-19 18:00:58,054 WARNING  For spell
checking, please install enchant (python3-enchant).

** (.rednotebook-real:5662): WARNING **: 18:00:58.089: Failed to load
shared library 'libwebkit2gtk-4.0.so.37' referenced by the typelib:
libwebkit2gtk-4.0.so.37: cannot open shared object file: No such file
or directory

** (.rednotebook-real:5662): WARNING **: 18:00:58.089: Failed to load
shared library 'libjavascriptcoregtk-4.0.so.18' referenced by the
typelib: libjavascriptcoregtk-4.0.so.18: cannot open shared object
file: No such file or
directory /gnu/store/f34bv1iaghh7hsymqm57abi8p1lyavv6-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/types.py:226:
Warning: cannot derive 'rednotebook+gui+browser+Browser' from
non-derivable parent type 'void' _gi.type_register(cls,
namespace.get('__gtype_name__')) Traceback (most recent call last):
File
"/gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/bin/.rednotebook-real",
line 6, in <module> import journal ModuleNotFoundError: No module named
'journal'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File
"/gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/bin/.rednotebook-real",
line 11, in <module> import rednotebook.journal File
"/gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/lib/python3.7/site-packages/rednotebook/journal.py",
line 168, in <module> from rednotebook.gui.main_window import
MainWindow File
"/gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/lib/python3.7/site-packages/rednotebook/gui/main_window.py",
line 45, in <module> from rednotebook.gui import browser File
"/gnu/store/cb2qs9gg7jlb83qc9k1aballzrfvia35-rednotebook-2.11.1/lib/python3.7/site-packages/rednotebook/gui/browser.py",
line 41, in <module> class Browser(WebKit2.WebView): File
"/gnu/store/f34bv1iaghh7hsymqm57abi8p1lyavv6-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/types.py",
line 235, in __init__ super(GObjectMeta, cls).__init__(name, bases,
dict_) File
"/gnu/store/f34bv1iaghh7hsymqm57abi8p1lyavv6-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/types.py",
line 214, in __init__ cls._type_register(cls.__dict__) File
"/gnu/store/f34bv1iaghh7hsymqm57abi8p1lyavv6-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/types.py",
line 226, in _type_register _gi.type_register(cls,
namespace.get('__gtype_name__')) RuntimeError: could not create new
GType: rednotebook+gui+browser+Browser (subclass of void)


Looks like this bug infests more than a temporary guix
environment. The program crashes unable to find some essential class
definitions even when I add a directory containing the necessary shared
libraries to $LD_LIBRARY_PATH and check that GI_TYPELIB_PATH has the
necessary typelib files.

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#!
see https://github.com/jendrikseipp/rednotebook
!#
(define-module (custom packages rednotebook)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system python)
  #:use-module (guix licenses))
(define-public rednotebook

  (package
   (name "rednotebook")
   (version "2.11.1")
   (source
    (origin
     (method url-fetch)
     (uri (string-append
	   "https://github.com/jendrikseipp/rednotebook/archive/v"
	   version
	   ".tar.gz"))
     (sha256
      (base32
       "15n1ziypfj3lzpvhha7r637zrb259l9yrcsvkic9cg5mndiaivs3"))))
   (build-system python-build-system)
   (arguments `(#:tests? #f))
   (inputs
    `(("python" ,(@ (gnu packages python) python-3))))
   (propagated-inputs
    `(("python-pygobject"
       ,(@ (gnu packages glib) python-pygobject))
      ("gtk+" ,(@ (gnu packages gtk) gtk+))
      ("gtksourceview"
       ,(@ (gnu packages gtk) gtksourceview-3))
      ("webkitgtk"
       ,(@ (gnu packages webkit) webkitgtk-2.24))
      ("python-pyyaml"
       ,(@ (gnu packages python-xyz) python-pyyaml))))
   (home-page "https://www.rednotebook.app")
   (synopsis #f)
   (description
    "RedNotebook is a modern desktop journal. It lets you format, tag and search your entries. You can also add pictures, links and customizable templates, spell check your notes, and export to plain text, HTML, Latex or PDF.")
   (license gpl2+))
  )