Review updates

src/pip/_internal/operations/prepare.py

@@ -166,11 +166,13 @@ def _copy_source_tree(source, target):
             skipped += [target_basename]
         return skipped
 
-    kwargs = dict(ignore=ignore, symlinks=True)  # type: CopytreeKwargs
-
-    kwargs['copy_function'] = _copy2_ignoring_special_files
-
-    shutil.copytree(source, target, **kwargs)
+    shutil.copytree(
+        source,
+        target,
+        ignore=ignore,
+        symlinks=True,
+        copy_function=_copy2_ignoring_special_files,
+    )
 
 
 def get_file_url(

src/pip/_internal/pyproject.py

@@ -24,9 +24,7 @@ def _is_list_of_str(obj):
 
 def make_pyproject_path(unpacked_source_directory):
     # type: (str) -> str
-    path = os.path.join(unpacked_source_directory, 'pyproject.toml')
-
-    return path
+    return os.path.join(unpacked_source_directory, 'pyproject.toml')
 
 
 BuildSystemDetails = namedtuple('BuildSystemDetails', [

src/pip/_internal/utils/compat.py

@@ -190,47 +190,13 @@ WINDOWS = (sys.platform.startswith("win") or
            (sys.platform == 'cli' and os.name == 'nt'))
 
 
-if hasattr(shutil, 'get_terminal_size'):
-    def get_terminal_size():
-        # type: () -> Tuple[int, int]
-        """
-        Returns a tuple (x, y) representing the width(x) and the height(y)
-        in characters of the terminal window.
-        """
-        return tuple(shutil.get_terminal_size())  # type: ignore
-else:
-    def get_terminal_size():
-        # type: () -> Tuple[int, int]
-        """
-        Returns a tuple (x, y) representing the width(x) and the height(y)
-        in characters of the terminal window.
-        """
-        def ioctl_GWINSZ(fd):
-            try:
-                import fcntl
-                import struct
-                import termios
-                cr = struct.unpack_from(
-                    'hh',
-                    fcntl.ioctl(fd, termios.TIOCGWINSZ, '12345678')
-                )
-            except Exception:
-                return None
-            if cr == (0, 0):
-                return None
-            return cr
-        cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
-        if not cr:
-            if sys.platform != "win32":
-                try:
-                    fd = os.open(os.ctermid(), os.O_RDONLY)
-                    cr = ioctl_GWINSZ(fd)
-                    os.close(fd)
-                except Exception:
-                    pass
-        if not cr:
-            cr = (os.environ.get('LINES', 25), os.environ.get('COLUMNS', 80))
-        return int(cr[1]), int(cr[0])
+def get_terminal_size():
+    # type: () -> Tuple[int, int]
+    """
+    Returns a tuple (x, y) representing the width(x) and the height(y)
+    in characters of the terminal window.
+    """
+    return tuple(shutil.get_terminal_size())  # type: ignore
 
 
 # Fallback to noop_lru_cache in Python 2