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-rw-r--r--synapse/python_dependencies.py18
1 files changed, 10 insertions, 8 deletions
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 2d995ec456..0ddead8a0f 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -37,13 +37,16 @@ logger = logging.getLogger(__name__)
 # installed when that optional dependency requirement is specified. It is passed
 # to setup() as extras_require in setup.py
 #
+# Note that these both represent runtime dependencies (and the versions
+# installed are checked at runtime).
+#
 # [1] https://pip.pypa.io/en/stable/reference/pip_install/#requirement-specifiers.
 
 REQUIREMENTS = [
     "jsonschema>=2.5.1",
     "frozendict>=1",
     "unpaddedbase64>=1.1.0",
-    "canonicaljson>=1.3.0",
+    "canonicaljson>=1.4.0",
     # we use the type definitions added in signedjson 1.1.
     "signedjson>=1.1.0",
     "pynacl>=1.2.1",
@@ -65,7 +68,11 @@ REQUIREMENTS = [
     "pymacaroons>=0.13.0",
     "msgpack>=0.5.2",
     "phonenumbers>=8.2.0",
-    "prometheus_client>=0.0.18,<0.9.0",
+    # we use GaugeHistogramMetric, which was added in prom-client 0.4.0.
+    # prom-client has a history of breaking backwards compatibility between
+    # minor versions (https://github.com/prometheus/client_python/issues/317),
+    # so we also pin the minor version.
+    "prometheus_client>=0.4.0,<0.9.0",
     # we use attr.validators.deep_iterable, which arrived in 19.1.0 (Note:
     # Fedora 31 only has 19.1, so if we want to upgrade we should wait until 33
     # is out in November.)
@@ -92,12 +99,6 @@ CONDITIONAL_REQUIREMENTS = {
     "oidc": ["authlib>=0.14.0"],
     "systemd": ["systemd-python>=231"],
     "url_preview": ["lxml>=3.5.0"],
-    # Dependencies which are exclusively required by unit test code. This is
-    # NOT a list of all modules that are necessary to run the unit tests.
-    # Tests assume that all optional dependencies are installed.
-    #
-    # parameterized_class decorator was introduced in parameterized 0.7.0
-    "test": ["mock>=2.0", "parameterized>=0.7.0"],
     "sentry": ["sentry-sdk>=0.7.2"],
     "opentracing": ["jaeger-client>=4.0.0", "opentracing>=2.2.0"],
     "jwt": ["pyjwt>=1.6.4"],
@@ -110,6 +111,7 @@ ALL_OPTIONAL_REQUIREMENTS = set()  # type: Set[str]
 
 for name, optional_deps in CONDITIONAL_REQUIREMENTS.items():
     # Exclude systemd as it's a system-based requirement.
+    # Exclude lint as it's a dev-based requirement.
     if name not in ["systemd"]:
         ALL_OPTIONAL_REQUIREMENTS = set(optional_deps) | ALL_OPTIONAL_REQUIREMENTS