1 files changed, 22 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/science/math/sage/patches/ignore-pip-deprecation.patch b/nixpkgs/pkgs/applications/science/math/sage/patches/ignore-pip-deprecation.patch
new file mode 100644
index 000000000000..95b377dc9550
--- /dev/null
+++ b/nixpkgs/pkgs/applications/science/math/sage/patches/ignore-pip-deprecation.patch
@@ -0,0 +1,22 @@
+diff --git a/src/sage/misc/package.py b/src/sage/misc/package.py
+index 689e5a23b9..4e16fe3a8d 100644
+--- a/src/sage/misc/package.py
++++ b/src/sage/misc/package.py
+@@ -142,9 +142,14 @@ def pip_installed_packages():
+         sage: d['beautifulsoup']   # optional - beautifulsoup
+         u'...'
+     """
+-    proc = subprocess.Popen(["pip", "list", "--no-index", "--format", "json"], stdout=subprocess.PIPE)
+-    stdout = proc.communicate()[0].decode()
+-    return {package['name'].lower():package['version'] for package in json.loads(stdout)}
++    with open(os.devnull, 'w')  as devnull:
++        proc = subprocess.Popen(
++            ["pip", "list", "--no-index", "--format", "json"],
++            stdout=subprocess.PIPE,
++            stderr=devnull,
++        )
++        stdout = proc.communicate()[0].decode()
++        return {package['name'].lower():package['version'] for package in json.loads(stdout)}
+ 
+ def list_packages(*pkg_types, **opts):
+     r"""