[py] Handle first/always match better when it hits lists/dicts. Fixes #…

…9538

py/selenium/webdriver/remote/webdriver.py

@@ -45,10 +45,10 @@
                                         NoSuchCookieException)
 from selenium.webdriver.common.by import By
 from selenium.webdriver.common.options import BaseOptions
+from selenium.webdriver.common.print_page_options import PrintOptions
 from selenium.webdriver.common.timeouts import Timeouts
 from selenium.webdriver.common.html5.application_cache import ApplicationCache
 from selenium.webdriver.support.relative_locator import RelativeBy
-from selenium.webdriver.common.print_page_options import PrintOptions
 
 
 _W3C_CAPABILITY_NAMES = frozenset([
@@ -70,6 +70,7 @@
     'platform': 'platformName'
 }
 
+
 devtools = None
 
 
@@ -126,15 +127,23 @@ def create_matches(options: List[BaseOptions]) -> Dict:
     for opt in options:
         opts.append(opt.to_capabilities())
     opts_size = len(opts)
-    samesies = set()
+    samesies = {}
+
+    # Can not use bitwise operations on the dicts or lists due to
+    # https://bugs.python.org/issue38210
     for i in range(opts_size):
         min_index = i
         if i + 1 < opts_size:
-            samesies.update(opts[min_index].items() & opts[i + 1].items())
+            first_keys = opts[min_index].keys()
+
+            for kys in first_keys:
+                if kys in opts[i + 1].keys():
+                    if opts[min_index][kys] == opts[i + 1][kys]:
+                        samesies.update({kys: opts[min_index][kys]})
 
     always = {}
-    for i in samesies:
-        always[i[0]] = i[1]
+    for k, v in samesies.items():
+        always[k] = v
 
     for i in opts:
         for k in always.keys():