如何去除字典里的括号

##input:
dict_a = {'blue': ['1','10'],
          'yellow': ['1','23'],
          'white': ['98'],
          'brown': ['12'],
          'green': ['45', '67']}

print(sorted(dict_a.items(), key=lambda item:item[0]))

##output:
[('blue', ['1', '10']), 
 ('brown', ['12']), 
 ('green', ['45', '67']), 
 ('white', ['98']), 
 ('yellow', ['1', '23'])]

但是我想输出的是：

{'blue': ['1','10'],
 'brown': ['12'], 
 'green': ['45', '67'], 
 'white': ['98'], 
 'yellow': ['1','23']}

按字典中value的首字母排序（A-Z）,怎么去掉中间的每一对的括号，和最外面的中括号变成大括号。

>>> dict_a = {'blue': ['1','10'],
          'yellow': ['1','23'],
          'white': ['98'],
          'brown': ['12'],
          'green': ['45', '67']}
>>> out = list()
>>> for key in sorted(dict_a.keys()):
	out.append("'%s': %s"%(key, str(dict_a[key])))

	
>>> print('{%s}'%',\n'.join(out))
{'blue': ['1', '10'],
'brown': ['12'],
'green': ['45', '67'],
'white': ['98'],
'yellow': ['1', '23']}

试下这段代码, 有个小问题(列表变成长度一样了)

import pandas as pd
import numpy as np

dict_a = {'blue': ['1','10'],
          'yellow': ['1','23'],
          'white': ['98'],
          'brown': ['12'],
          'green': ['45', '67']}

data = pd.DataFrame(dict([(k, pd.Series(v)) for k, v in dict_a.items()]))
dict_re = data.sort_index(axis=1).to_dict('list')
print(dict_re)

print(dict_re)
{'blue': ['1', '10'], 
'brown': ['12', nan], 
'green': ['45', '67'], 
'white': ['98', nan], 
'yellow': ['1', '23']}