چطور در پایتون مقادیر مختلف از یک کلید یکسان را با هم مرج کنیم؟

#لیست اولیه
test_list = [{'a' : 2, 'b' : 4, 'c' : 6}, 
             {'a' : 5, 'c' : 7, 'd' : 8},
             {'x' : 10}]
#خروجی
out_dict = {'a' : [2,5] , 'b' : 4, 'c' : [6,7], 'd':8, 'x': 10}

# Python3 code to demonstrate working of
# Merge Python key values to list
# Using setdefault() + loop
 
# Initialize list
test_list = [{'bkeb' : 2, 'is' : 4, 'best' : 6}, 
             {'it' : 5, 'is' : 7, 'best' : 8},
             {'CS' : 10}]
 
# Printing original list
print("The original list is : " + str(test_list))
 
# using setdefault() + loop
# Merge Python key values to list
res = {}
for sub in test_list:
    for key, val in sub.items(): 
        res.setdefault(key, []).append(val)
 
# printing result 
print("The merged values encapsulated dictionary is : " + str(res))
# Python3 code to demonstrate working of
# Merge Python key values to list
# Using setdefault() + loop
 
# Initialize list
test_list = [{'bkeb' : 2, 'is' : 4, 'best' : 6}, 
             {'it' : 5, 'is' : 7, 'best' : 8},
             {'CS' : 10}]
 
# Printing original list
print("The original list is : " + str(test_list))
 
# using setdefault() + loop
# Merge Python key values to list
res = {}
for sub in test_list:
    for key, val in sub.items(): 
        res.setdefault(key, []).append(val)
 
# printing result 
print("The merged values encapsulated dictionary is : " + str(res))اجرای کد

# Python3 code to demonstrate working of
# Merge Python key values to list
# Using list comprehension + dictionary comprehension
 
# Initialize list
test_list = [{'bkeb' : 2, 'is' : 4, 'best' : 6}, 
             {'it' : 5, 'is' : 7, 'best' : 8},
             {'CS' : 10}]
 
# Printing original list
print("The original list is : " + str(test_list))
 
# using list comprehension + dictionary comprehension
# Merge Python key values to list
res = {key: list({sub[key] for sub in test_list if key in sub})
      for key in {key for sub in test_list for key in sub}}
 
# printing result 
print("The merged values encapsulated dictionary is : " + str(res))
# Python3 code to demonstrate working of
# Merge Python key values to list
# Using list comprehension + dictionary comprehension
 
# Initialize list
test_list = [{'bkeb' : 2, 'is' : 4, 'best' : 6}, 
             {'it' : 5, 'is' : 7, 'best' : 8},
             {'CS' : 10}]
 
# Printing original list
print("The original list is : " + str(test_list))
 
# using list comprehension + dictionary comprehension
# Merge Python key values to list
res = {key: list({sub[key] for sub in test_list if key in sub})
      for key in {key for sub in test_list for key in sub}}
 
# printing result 
print("The merged values encapsulated dictionary is : " + str(res))اجرای کد