Simplify if statements (via ruff PLR1714).

client/testing/test_functional.py

@@ -127,7 +127,7 @@ def downloadrelease(self, code, url):
 
     def change_password(self, user, password):
         auth = getattr(self, "auth", None)
-        if auth is None or auth[0] != user and auth[0] != "root":
+        if auth is None or auth[0] not in (user, "root"):
             raise ValueError("need to be logged as %r or root" % user)
         self.devpi("user", "-m", user, "password=%s" % password)
         if user == "root" and password != "":

server/test_devpi_server/simpypi.py

@@ -70,7 +70,7 @@ def start_response(status, headers):
                 start_response(200, headers)
                 self.wfile.write(b'\n'.join(releases))
                 return
-        elif p == ['', 'simple', ''] or p == ['', 'simple']:
+        elif p in (['', 'simple', ''], ['', 'simple']):
             # root listing
             projects = [
                 '<a href="/simple/%s/">%s</a>' % (k, v['title'])

web/devpi_web/views.py

@@ -215,7 +215,7 @@ def doc_show(context, request):
                 project=name, version='latest', relpath="index.html")))
     try:
         stable_doc_info = get_doc_info(context, request, version='stable', check_content=False)
-        if stable_doc_info['doc_version'] != doc_info['doc_version'] and stable_doc_info['doc_version'] != latest_doc_info['doc_version']:
+        if stable_doc_info['doc_version'] not in (doc_info['doc_version'], latest_doc_info['doc_version']):
             version_links.append(dict(
                 title="Stable documentation",
                 url=request.route_url(