build: enable blacken session

docs/conf.py

@@ -258,13 +258,7 @@
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (
-        master_doc,
-        "dialogflow.tex",
-        u"dialogflow Documentation",
-        author,
-        "manual",
-    )
+    (master_doc, "dialogflow.tex", u"dialogflow Documentation", author, "manual")
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -292,15 +286,7 @@
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
-man_pages = [
-    (
-        master_doc,
-        "dialogflow",
-        u"dialogflow Documentation",
-        [author],
-        1,
-    )
-]
+man_pages = [(master_doc, "dialogflow", u"dialogflow Documentation", [author], 1)]
 
 # If true, show URL addresses after external links.
 # man_show_urls = False
@@ -342,12 +328,8 @@
     "gax": ("https://gax-python.readthedocs.org/en/latest/", None),
     "google-auth": ("https://google-auth.readthedocs.io/en/stable", None),
     "google-gax": ("https://gax-python.readthedocs.io/en/latest/", None),
-    "google.api_core": (
-        "https://googleapis.dev/python/google-api-core/latest",
-        None,
-    ),
+    "google.api_core": ("https://googleapis.dev/python/google-api-core/latest", None),
     "grpc": ("https://grpc.io/grpc/python/", None),
-
 }
 
 

noxfile.py

@@ -36,20 +36,20 @@ def lint(session):
     serious code quality issues.
     """
     session.install("flake8", BLACK_VERSION)
-    # session.run("black", "--check", *BLACK_PATHS)
+    session.run("black", "--check", *BLACK_PATHS)
     session.run("flake8", "dialogflow", "dialogflow_v2", "dialogflow_v2beta1")
 
 
-# @nox.session(python="3.6")
-# def blacken(session):
-#     """Run black.
-#     Format code to uniform standard.
-#     This currently uses Python 3.6 due to the automated Kokoro run of synthtool.
-#     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_VERSION)
-#     session.run("black", *BLACK_PATHS)
+@nox.session(python="3.6")
+def blacken(session):
+    """Run black.
+    Format code to uniform standard.
+    This currently uses Python 3.6 due to the automated Kokoro run of synthtool.
+    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_VERSION)
+    session.run("black", *BLACK_PATHS)
 
 
 @nox.session(python="3.7")