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>>> url="/libraray/{lId}/users/{uid}/products/?key={key}";
>>> arr=['1', '2', 'abc']
>>> keys=["lId","uid","key"]
>>> params={keys[i] : arr[i] for i in range(len(keys))}
>>> url.format(**params)
'/libraray/1/users/2/products/?key=abc'
url = "/libraray/{lId}/users/{uid}/products/?key={key}"
arr=['1', '2', 'abc']
arrkey=['lId','uid','key']
x=url.format_map(dict(zip(arrkey,arr)))
print(x)
url.format(lId='1', uid='2', key='abc')