Fix CI (#1185)

* Reformat code using black 23.x

* fix compat with tox 4

src/OpenSSL/SSL.py

@@ -1916,7 +1916,6 @@ def sendall(self, buf, flags=0):
         buf = _text_to_bytes_and_warn("buf", buf)
 
         with _ffi.from_buffer(buf) as data:
-
             left_to_send = len(buf)
             total_sent = 0
 

src/OpenSSL/crypto.py

@@ -2556,7 +2556,6 @@ def export(
 
 
 class PKCS7:
-
     _pkcs7: Any
 
     def type_is_signed(self) -> bool:
@@ -2920,7 +2919,6 @@ def callback_args(self) -> Any:
 
     def raise_if_problem(self, exceptionType: Type[Exception] = Error) -> None:
         if self._problems:
-
             # Flush the OpenSSL error queue
             try:
                 _exception_from_error_queue(exceptionType)

tests/test_ssl.py

@@ -359,11 +359,10 @@ def interact_in_memory(client_conn, server_conn):
 
         # Copy stuff from each side's send buffer to the other side's
         # receive buffer.
-        for (read, write) in [
+        for read, write in [
             (client_conn, server_conn),
             (server_conn, client_conn),
         ]:
-
             # Give the side a chance to generate some more bytes, or succeed.
             try:
                 data = read.recv(2**16)

tox.ini

@@ -12,6 +12,8 @@ passenv =
     PATH
     LD_LIBRARY_PATH
     TERM
+    RUSTUP_TOOLCHAIN
+    RUSTUP_HOME
 extras =
     test
 deps =