diff --git a/contrib/teamcity/build-configurations.json b/contrib/teamcity/build-configurations.json
--- a/contrib/teamcity/build-configurations.json
+++ b/contrib/teamcity/build-configurations.json
@@ -280,6 +280,10 @@
             ],
             "timeout": 1800
         },
+        "check-buildbot": {
+            "script": "builds/check-buildbot.sh",
+            "timeout": 600
+        },
         "check-seeds": {
             "script": "builds/check-seeds.sh",
             "templates": [
diff --git a/contrib/teamcity/builds/check-buildbot.sh b/contrib/teamcity/builds/check-buildbot.sh
new file mode 100755
--- /dev/null
+++ b/contrib/teamcity/builds/check-buildbot.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+export LC_ALL=C.UTF-8
+
+set -euxo pipefail
+
+# shellcheck source=../ci-fixture.sh
+source "${TOPLEVEL}/contrib/teamcity/ci-fixture.sh"
+
+cd "${TOPLEVEL}"/contrib/buildbot/test
+
+pytest -v
diff --git a/contrib/teamcity/setup-debian-buster.sh b/contrib/teamcity/setup-debian-buster.sh
--- a/contrib/teamcity/setup-debian-buster.sh
+++ b/contrib/teamcity/setup-debian-buster.sh
@@ -123,6 +123,11 @@
 pip3 install teamcity-messages
 # Python library for merging nested structures
 pip3 install deepmerge
+# For running Python test suites
+pip3 install pytest
+
+# Install Python dependencies for Python projects
+pip3 install -r ../buildbot/requirements.txt
 
 # Install pandoc. The version from buster is outdated, so get a more recent one
 # from github.