FileNotFoundError - [Errno 2] 没有这样的文件或目录：

Question

我在Python，Django框架中编写了以下代码：

class ImageGenerator:

    def __init__(self, tip):

        self.tip = tip

    def remove_transparency(self, im, bg_colour=(250, 250, 250)):

        if im.mode in ('RGBA', 'LA') or (im.mode == 'P' and 'transparency' in im.info):

            alpha = im.convert('RGBA').split()[-1]

            bg = Image.new("RGBA", im.size, bg_colour + (255,))

            bg.paste(im, mask=alpha)

            return bg

        else:

            return im

    def generate(self):

        print('Triggered')

        border = 3

        home_url = self.tip.fixture.home.image_url

        away_url = self.tip.fixture.away.image_url

        home_name = self.tip.fixture.home.name

        away_name = self.tip.fixture.away.name

        response = requests.get(home_url)

        home = self.remove_transparency(Image.open(BytesIO(response.content)))

        home_w, home_h = home.size

        response = requests.get(away_url)

        away = self.remove_transparency(Image.open(BytesIO(response.content)))

        away_w, away_h = away.size

        background_image = Image.open('/static/background.jpg', 'r')

当我执行此代码时，我收到以下错误：

FileNotFoundError at /fixtures/view/54848

[Errno 2] No such file or directory: '/static/background.jpg'

Request Method:     POST

Request URL:    http://127.0.0.1:8000/fixtures/view/54848

Django Version:     3.0.3

Exception Type:     FileNotFoundError

Exception Value:    

[Errno 2] No such file or directory: '/static/background.jpg'

Exception Location:     /home/sander/.local/lib/python3.6/site-packages/PIL/Image.py in open, line 2809

Python Executable:  /usr/bin/python3

Python Version:     3.6.9

Python Path:    

['/home/sander/git/football',

 '/usr/lib/python36.zip',

 '/usr/lib/python3.6',

 '/usr/lib/python3.6/lib-dynload',

 '/home/sander/.local/lib/python3.6/site-packages',

 '/usr/local/lib/python3.6/dist-packages',

 '/usr/lib/python3/dist-packages']

Server time:    Fri, 28 Feb 2020 18:56:54 +0000

我尝试使用.这将产生相同的错误。该命令也无法解决问题。staticfrom django.templatetags.static import staticcollectstatic

有人知道这个问题的解决方案吗？

Answer 1

我认为您的代码在行中断开：    background_image = Image.open('/static/background.jpg', 'r')由于您在路径的开头使用斜杠，因此Python会尝试在文件系统中将此文件查找为绝对路径。确保它在那里编写时存在。您可以尝试使用完整的绝对路径，但最佳做法是使用相对路径。