Run Black on Generated libraries (#6666)

* blacken appveyor

* Blacken all gen'd libraries not under PR

Author: crwilcox

appveyor/env_info.py

@@ -23,26 +23,26 @@
 
 def env_var(var_name):
     value = os.environ.get(var_name)
-    print('os.environ[{!r}]: {}'.format(var_name, value))
+    print("os.environ[{!r}]: {}".format(var_name, value))
 
 
 def main():
-    print('os.name: {}'.format(os.name))
-    env_var('PYTHON_ARCH')
-    env_var('PYTHON_VERSION')
-    print('sys.platform: {}'.format(sys.platform))
-
-    if sys.maxsize == 2**63 - 1:
-        print('sys.maxsize: 2^(63) - 1')
-    elif sys.maxsize == 2**31 - 1:
-        print('sys.maxsize: 2^(31) - 1')
+    print("os.name: {}".format(os.name))
+    env_var("PYTHON_ARCH")
+    env_var("PYTHON_VERSION")
+    print("sys.platform: {}".format(sys.platform))
+
+    if sys.maxsize == 2 ** 63 - 1:
+        print("sys.maxsize: 2^(63) - 1")
+    elif sys.maxsize == 2 ** 31 - 1:
+        print("sys.maxsize: 2^(31) - 1")
     else:
-        print('sys.maxsize: {}'.format(sys.maxsize))
+        print("sys.maxsize: {}".format(sys.maxsize))
 
-    print('sys.version:\n{}'.format(sys.version))
-    bitness = struct.calcsize('P') * 8
-    print('struct.calcsize(\'P\') * 8: {}'.format(bitness))
+    print("sys.version:\n{}".format(sys.version))
+    bitness = struct.calcsize("P") * 8
+    print("struct.calcsize('P') * 8: {}".format(bitness))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()