tests: Format all Python code with black, except tests in basics subdir.

This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.

1 files changed, 3 insertions, 0 deletions

diff --git a/tests/thread/thread_lock4.py b/tests/thread/thread_lock4.py
index 2f9d42d6b..bbf904399 100644
--- a/tests/thread/thread_lock4.py
+++ b/tests/thread/thread_lock4.py
@@ -8,12 +8,14 @@ except ImportError:
     import time
 import _thread
 
+
 def fac(n):
     x = 1
     for i in range(1, n + 1):
         x *= i
     return x
 
+
 def thread_entry():
     while True:
         with jobs_lock:
@@ -25,6 +27,7 @@ def thread_entry():
         with output_lock:
             output.append((arg, ans))
 
+
 # create a list of jobs
 jobs = [(fac, i) for i in range(20, 80)]
 jobs_lock = _thread.allocate_lock()