diff --git a/changelog.d/9699.bugfix b/changelog.d/9699.bugfix
new file mode 100644
index 0000000000..e871825b33
--- /dev/null
+++ b/changelog.d/9699.bugfix
@@ -0,0 +1 @@
+Fix a bug introduced in Synapse 1.30.1 which meant the suggested `pip` incantation to install an updated `cryptography` was incorrect.
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 14ddaed026..2a1c925ee8 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -15,6 +15,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+import itertools
import logging
from typing import List, Set
@@ -101,7 +102,7 @@ CONDITIONAL_REQUIREMENTS = {
"txacme>=0.9.2",
# txacme depends on eliot. Eliot 1.8.0 is incompatible with
# python 3.5.2, as per https://github.com/itamarst/eliot/issues/418
- 'eliot<1.8.0;python_version<"3.5.3"',
+ "eliot<1.8.0;python_version<'3.5.3'",
],
"saml2": [
# pysaml2 6.4.0 is incompatible with Python 3.5 (see https://github.com/IdentityPython/pysaml2/issues/749)
@@ -131,6 +132,18 @@ for name, optional_deps in CONDITIONAL_REQUIREMENTS.items():
ALL_OPTIONAL_REQUIREMENTS = set(optional_deps) | ALL_OPTIONAL_REQUIREMENTS
+# ensure there are no double-quote characters in any of the deps (otherwise the
+# 'pip install' incantation in DependencyException will break)
+for dep in itertools.chain(
+ REQUIREMENTS,
+ *CONDITIONAL_REQUIREMENTS.values(),
+):
+ if '"' in dep:
+ raise Exception(
+ "Dependency `%s` contains double-quote; use single-quotes instead" % (dep,)
+ )
+
+
def list_requirements():
return list(set(REQUIREMENTS) | ALL_OPTIONAL_REQUIREMENTS)
@@ -150,7 +163,7 @@ class DependencyException(Exception):
@property
def dependencies(self):
for i in self.args[0]:
- yield "'" + i + "'"
+ yield '"' + i + '"'
def check_requirements(for_feature=None):
|