python如何把列表变字典

list1 = ['key1','key2','key3']
list2 = ['1','2','3']
dict(zip(list1,list2))
{'key1':'1','key2':'2','key3':'3'}

new_list= [['key1','value1'],['key2','value2'],['key3','value3']]
dict(list)
{'key3': 'value3', 'key2': 'value2', 'key1': 'value1'}

new_list= [['key1','value1'],['key2','value2'],['key3','value3']]
new_dict = {}
 for i in new_list:
new_dict[i[0]] = i[1]                #字典赋值，左边为key，右边为value
new_dict
{'key3': 'value3', 'key2': 'value2', 'key1': 'value1'}