Remove Python 3.7 code paths

distutils/command/install.py

@@ -145,7 +145,7 @@ def _resolve_scheme(name):
     try:
         resolved = sysconfig.get_preferred_scheme(key)
     except Exception:
-        resolved = fw.scheme(_pypy_hack(name))
+        resolved = fw.scheme(name)
     return resolved
 
 
@@ -162,7 +162,7 @@ def _inject_headers(name, scheme):
     """
     # Bypass the preferred scheme, which may not
     # have defined headers.
-    fallback = _load_scheme(_pypy_hack(name))
+    fallback = _load_scheme(name)
     scheme.setdefault('headers', fallback['headers'])
     return scheme
 
@@ -172,14 +172,6 @@ def _scheme_attrs(scheme):
     return {f'install_{key}': scheme[key] for key in SCHEME_KEYS}
 
 
-def _pypy_hack(name):
-    PY37 = sys.version_info < (3, 8)
-    old_pypy = hasattr(sys, 'pypy_version_info') and PY37
-    prefix = not name.endswith(('_user', '_home'))
-    pypy_name = 'pypy' + '_nt' * (os.name == 'nt')
-    return pypy_name if old_pypy and prefix else name
-
-
 class install(Command):
     description = "install everything from build directory"
 

distutils/sysconfig.py

@@ -156,8 +156,6 @@ def _extant(path):
 
 
 def _get_python_inc_posix(prefix, spec_prefix, plat_specific):
-    if IS_PYPY and sys.version_info < (3, 8):
-        return os.path.join(prefix, 'include')
     return (
         _get_python_inc_posix_python(plat_specific)
         or _extant(_get_python_inc_from_config(plat_specific, spec_prefix))
@@ -246,14 +244,6 @@ def get_python_lib(
     sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
     """
 
-    if IS_PYPY and sys.version_info < (3, 8):
-        # PyPy-specific schema
-        if prefix is None:
-            prefix = PREFIX
-        if standard_lib:
-            return os.path.join(prefix, "lib-python", sys.version_info.major)
-        return os.path.join(prefix, 'site-packages')
-
     early_prefix = prefix
 
     if prefix is None: