Revert "Use sortedcontainers instead of blist"

This reverts commit 9fbe70a7dc3afabfdac176ba1f4be32dd44602aa.

It turns out that sortedcontainers.SortedDict is not an exact match for
blist.sorteddict; in particular, `popitem()` removes things from the opposite
end of the dict.

This is trivial to fix, but I want to add some unit tests, and potentially some
more thought about it, before we do so.

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py

index f9596bddaf..40eedb63cb 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -34,8 +34,8 @@ REQUIREMENTS = {
     "bcrypt": ["bcrypt>=3.1.0"],
     "pillow": ["PIL"],
     "pydenticon": ["pydenticon"],
+    "blist": ["blist"],
     "pysaml2>=3.0.0": ["saml2>=3.0.0"],
-    "sortedcontainers": ["sortedcontainers"],
     "pymacaroons-pynacl": ["pymacaroons"],
     "msgpack-python>=0.3.0": ["msgpack"],
     "phonenumbers>=8.2.0": ["phonenumbers"],