Apply refurb suggestions

[FURB108]: Use `x in (y, z)` instead of `x == y or x == z`

Author: DimitriPapadopoulos

distutils/command/install.py

@@ -609,7 +609,7 @@ def _expand_attrs(self, attrs):
         for attr in attrs:
             val = getattr(self, attr)
             if val is not None:
-                if os.name == 'posix' or os.name == 'nt':
+                if os.name in ('posix', 'nt'):
                     val = os.path.expanduser(val)
                 val = subst_vars(val, self.config_vars)
                 setattr(self, attr, val)

distutils/cygwinccompiler.py

@@ -133,7 +133,7 @@ def gcc_version(self):
 
     def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
         """Compiles the source by spawning GCC and windres if needed."""
-        if ext == '.rc' or ext == '.res':
+        if ext in ('.rc', '.res'):
             # gcc needs '.res' and '.rc' compiled to object files !!!
             try:
                 self.spawn(["windres", "-i", src, "-o", obj])

distutils/msvc9compiler.py

@@ -391,7 +391,7 @@ def initialize(self, plat_name=None):  # noqa: C901
             # to cross compile, you use 'x86_amd64'.
             # On AMD64, 'vcvars32.bat amd64' is a native build env; to cross
             # compile use 'x86' (ie, it runs the x86 compiler directly)
-            if plat_name == get_platform() or plat_name == 'win32':
+            if plat_name in (get_platform(), 'win32'):
                 # native build or cross-compile to win32
                 plat_spec = PLAT_TO_VCVARS[plat_name]
             else:

distutils/text_file.py

@@ -255,7 +255,7 @@ def readline(self):  # noqa: C901
 
             # blank line (whether we rstrip'ed or not)? skip to next line
             # if appropriate
-            if (line == '' or line == '\n') and self.skip_blanks:
+            if line in ('', '\n') and self.skip_blanks:
                 continue
 
             if self.join_lines: