Python类覆盖以前的初始化,而不是创建新的初始化
老实说,我甚至不知道如何称呼这个错误Python类覆盖以前的初始化,而不是创建新的初始化,python,class,init,Python,Class,Init,老实说,我甚至不知道如何称呼这个错误 def create_vimeo_objects_details_DTO_thumbnail(number=5): max_widths = [] test_thumbnail = [] for i in range(number): new_width = randint(0,2540) max_widths.append(new_width) dto_thumbnail = {
def create_vimeo_objects_details_DTO_thumbnail(number=5):
max_widths = []
test_thumbnail = []
for i in range(number):
new_width = randint(0,2540)
max_widths.append(new_width)
dto_thumbnail = {
'Thumbnail' : {
'link' : '',
'width' : new_width
}
}
test_thumbnail = test_thumbnail + [VimeoObjectDetailsDTO(dto_thumbnail).Thumbnail]
print('test thumbnail: ', [a.width for a in test_thumbnail])
dto_缩略图是必须从请求字典启动的类的一部分
class VimeoObjectDetailsDTO:
files = []
pictures = None
duration = None
class FileDto:
width = None
height = None
link = ''
quality = ''
class Pictures:
sizes = []
class Thumbnail:
width = None
link = ''
def __init__(self, response):
if 'files' in response: self.files = response['files']
if 'pictures' in response: self.pictures = response['pictures']
if 'duration' in response: self.duration = response['duration']
if 'FileDto' in response:
if 'width' in response['FileDto']: self.FileDto.width = response['FileDto']['width']
if 'link' in response['FileDto']: self.FileDto.link = response['FileDto']['link']
if 'height' in response['FileDto']: self.FileDto.height = response['FileDto']['height']
if 'quality' in response['FileDto']: self.FileDto.quality = response['FileDto']['quality']
if 'Pictures' in response:
if 'sizes' in response['Pictures']: self.Pictures.sizes = response['Pictures']['sizes']
if 'Thumbnail' in response:
if 'width' in response['Thumbnail']: self.Thumbnail.width = response['Thumbnail']['width']
if 'link' in response['Thumbnail']: self.Thumbnail.link = response['Thumbnail']['link']
当我执行此函数时,我得到例如:
test thumbnail: [1893, 1893, 1893, 1893, 1893]
但是当我打印最大宽度时,我得到了正确的-不同的数字
如何使此函数返回/打印正确的VimeObjectDetailsTo.Thumbnails?无论我是使用+还是附加,您只有一个类的所有实例共用的缩略图对象,因为它是一个类属性。因此,每当您改变self.Thumbnail时,都会对同一个对象进行操作
内部类没有那么多合法的用途,这当然不是一个合理的用途。此外,这些类没有任何方法,它们可能是dicts,甚至根本不存在,比如图片
无论如何,无论您做什么,您都希望拥有实例属性,而不是类属性,因此您应该在uuu init_uuu中创建它们