gdb: re-format Python files using black 21.4b0users/simark/black

Re-format all Python files using black [1] version 21.4b0.

This specific version (currently the latest) can be installed using:

    $ pip3 install 'black == 21.4b0'

All you need to do to re-format files is run `black <file/directory>`,
and black will re-format any Python file it finds in there.  It runs
quite fast, so the simplest is probably to do:

    $ black gdb/

from the top-level.

Change-Id: I28588a22c2406afd6bc2703774ddfff47cd61919

1 files changed, 6 insertions, 3 deletions

diff --git a/gdb/testsuite/gdb.python/py-unwind-maint.py b/gdb/testsuite/gdb.python/py-unwind-maint.py
index 51d9c9e1f35..426fe76a705 100644
--- a/gdb/testsuite/gdb.python/py-unwind-maint.py
+++ b/gdb/testsuite/gdb.python/py-unwind-maint.py
@@ -19,6 +19,7 @@ import re
 import gdb.types
 from gdb.unwinder import Unwinder, register_unwinder
 
+
 class TestGlobalUnwinder(Unwinder):
     def __init__(self):
         super(TestGlobalUnwinder, self).__init__("global_unwinder")
@@ -27,6 +28,7 @@ class TestGlobalUnwinder(Unwinder):
         print("%s called" % self.name)
         return None
 
+
 class TestProgspaceUnwinder(Unwinder):
     def __init__(self, name):
         super(TestProgspaceUnwinder, self).__init__("%s_ps_unwinder" % name)
@@ -35,6 +37,7 @@ class TestProgspaceUnwinder(Unwinder):
         print("%s called" % self.name)
         return None
 
+
 class TestObjfileUnwinder(Unwinder):
     def __init__(self, name):
         super(TestObjfileUnwinder, self).__init__("%s_obj_unwinder" % name)
@@ -44,7 +47,6 @@ class TestObjfileUnwinder(Unwinder):
         return None
 
 
-
 gdb.unwinder.register_unwinder(None, TestGlobalUnwinder())
 saw_runtime_error = False
 try:
@@ -54,6 +56,7 @@ except RuntimeError:
 if not saw_runtime_error:
     raise RuntimeError("Missing runtime error from register_unwinder.")
 gdb.unwinder.register_unwinder(None, TestGlobalUnwinder(), replace=True)
-gdb.unwinder.register_unwinder(gdb.current_progspace(),
-                               TestProgspaceUnwinder("py_unwind_maint"))
+gdb.unwinder.register_unwinder(
+    gdb.current_progspace(), TestProgspaceUnwinder("py_unwind_maint")
+)
 print("Python script imported")