英文:
Python - Decoding dictionary value List<bytes> to List<String> without "b" notation
问题
Application.py：
from Person import Personperson = {'firstName': [b'Foo'],'lastName': [b'Bar'],'email': [b'foo.bar@example.com',b'bar.foo@example.com',],}p = Person(person)print(p.firstName)print(p.lastName)print(p.email)
Person.py：
class Person(object):def __init__(self, dictionary):for key in dictionary:value_list = dictionary[key]for i in range(len(value_list)):value_list[i] = value_list[i].decode('utf-8')setattr(self, key, value_list)
Running Application.py outputs this:
['Foo']['Bar']['foo.bar@example.com', 'bar.foo@example.com']
英文:
Novice Python (3.7) question here - I'm attempting to decode a Python dictionary's keys which are represented as lists of byte objects to a class but am seeing that the byte notation is not being removed as a part of decoding.
Can anyone help me achieve this without just bolting on something like v.replace("b", "")?
Application.py
from Person import Personperson = {'firstName': [b'Foo'],'lastName': [b'Bar'],'email': [b'foo.bar@example.com',b'bar.foo@example.com',],}p = Person(person)print(p.firstName)print(p.lastName)print(p.email)
Person.py
class Person(object):def __init__(self, dictionary):for key in dictionary:value_list = dictionary[key]for v in value_list:v.decode('utf-8')setattr(self, key, dictionary[key])
Running Application.py outputs this
[b'Foo'][b'Bar'][b'foo.bar@example.com', b'bar.foo@example.com']
But I require this (without "b'" notation)
['Foo']['Bar']['foo.bar@example.com', 'bar.foo@example.com']
答案1
得分: 1
以下是翻译好的代码部分：
class Person(object):def __init__(self, dictionary):for key, values in dictionary.items():try:new_values = []for value in values:new_values.append(value.decode('utf-8'))setattr(self, key, new_values)except:setattr(self, key, values.decode('utf-8'))person = {'firstName': ['Foo'],'lastName': ['Bar'],'email': ['foo.bar@example.com','bar.foo@example.com',],}p = Person(person)print(p.firstName)print(p.lastName)print(p.email)
输出：
['Foo']['Bar']['foo.bar@example.com', 'bar.foo@example.com']
注意：你的错误在于在setattr中使用原始值(dictionary[key])而不是解码后的值(value.decode('utf-8'))。
英文:
Try this:
class Person(object):def __init__(self, dictionary):for key, values in dictionary.items():try:new_values = []for value in values:new_values.append(value.decode('utf-8'))setattr(self, key, new_values)except:setattr(self, key, values.decode('utf-8'))person = {'firstName': [b'Foo'],'lastName': [b'Bar'],'email': [b'foo.bar@example.com',b'bar.foo@example.com',],}p = Person(person)print(p.firstName)print(p.lastName)print(p.email)
Output:
['Foo']['Bar']['foo.bar@example.com', 'bar.foo@example.com']
Note: your mistake is that you are using the original value ( dictionary[key]) in setattr not the decoded one (value.decode('utf-8')).
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