Pin black version (via synth). (#8579)

packages/google-cloud-dataproc/noxfile.py

@@ -24,7 +24,7 @@
 
 
 LOCAL_DEPS = (os.path.join("..", "api_core"), os.path.join("..", "core"))
-
+BLACK_VERSION = "black==19.3b0"
 BLACK_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
 if os.path.exists("samples"):
@@ -38,7 +38,7 @@ def lint(session):
     Returns a failure if the linters find linting errors or sufficiently
     serious code quality issues.
     """
-    session.install("flake8", "black", *LOCAL_DEPS)
+    session.install("flake8", BLACK_VERSION, *LOCAL_DEPS)
     session.run("black", "--check", *BLACK_PATHS)
     session.run("flake8", "google", "tests")
 
@@ -53,7 +53,7 @@ def blacken(session):
     That run uses an image that doesn't have 3.6 installed. Before updating this
     check the state of the `gcp_ubuntu_config` we use for that Kokoro run.
     """
-    session.install("black")
+    session.install(BLACK_VERSION)
     session.run("black", *BLACK_PATHS)
 
 

packages/google-cloud-dataproc/synth.metadata

@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-06-28T12:19:49.045895Z",
+  "updateTime": "2019-07-03T12:23:27.338543Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.29.2",
-        "dockerImage": "googleapis/artman@sha256:45263333b058a4b3c26a8b7680a2710f43eae3d250f791a6cb66423991dcb2df"
+        "version": "0.29.3",
+        "dockerImage": "googleapis/artman@sha256:8900f94a81adaab0238965aa8a7b3648791f4f3a95ee65adc6a56cfcc3753101"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "84c8ad4e52f8eec8f08a60636cfa597b86969b5c",
-        "internalRef": "255474859"
+        "sha": "69916b6ffbb7717fa009033351777d0c9909fb79",
+        "internalRef": "256241904"
       }
     },
     {