1 files changed, 62 insertions, 0 deletions
diff --git a/dev-python/jaraco-context/files/jaraco-context-3.0.0-useless-deps.patch b/dev-python/jaraco-context/files/jaraco-context-3.0.0-useless-deps.patch
new file mode 100644
index 000000000000..3b69581ab2b5
--- /dev/null
+++ b/dev-python/jaraco-context/files/jaraco-context-3.0.0-useless-deps.patch
@@ -0,0 +1,62 @@
+From e3a1f344c296f9d6193f4bf2ac1e0cdafcddce0e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Mon, 20 Jul 2020 18:11:31 +0200
+Subject: [PATCH] Make jaraco.apt & yg.lockfile imports optional
+
+Handle missing jaraco.apt & yg.lockfile modules more gracefully,
+delaying the error until dependency_context is actually used.  These
+two modules are only used by the dependency_context, and this context
+can only work on apt-based systems, so there is no point in forcing
+the extraneous dependencies on systems that do not use apt where
+jaraco.context is being installed for other context managers.
+---
+ jaraco/context.py | 19 ++++++++++++++++---
+ 1 file changed, 16 insertions(+), 3 deletions(-)
+
+diff --git a/jaraco/context.py b/jaraco/context.py
+index 0b5b1bc..13dfdf6 100644
+--- a/jaraco/context.py
++++ b/jaraco/context.py
+@@ -13,8 +13,15 @@ try:
+ except Exception:
+     import contextlib as contextlib2
+ 
+-import jaraco.apt
+-import yg.lockfile
++try:
++    import jaraco.apt as apt
++except ImportError:
++    apt = None
++
++try:
++    import yg.lockfile
++except ImportError:
++    yg = None
+ 
+ 
+ __metaclass__ = type
+@@ -131,6 +138,12 @@ def dependency_context(package_names, aggressively_remove=False):
+     """
+     installed_packages = []
+     log = logging.getLogger(__name__)
++    if apt is None:
++        log.error("jaraco.apt not found installed")
++        raise ImportError("jaraco.apt not found installed")
++    if yg is None:
++        log.error("yg.lockfile not found installed")
++        raise ImportError("yg.lockfile not found installed")
+     try:
+         if not package_names:
+             logging.debug('No packages requested')
+@@ -144,7 +157,7 @@ def dependency_context(package_names, aggressively_remove=False):
+                 stderr=subprocess.STDOUT,
+             )
+             log.debug('Aptitude output:\n%s', output)
+-            installed_packages = jaraco.apt.parse_new_packages(
++            installed_packages = apt.parse_new_packages(
+                 output, include_automatic=aggressively_remove
+             )
+             if not installed_packages:
+-- 
+2.27.0
+