小编use*_*674的帖子

我有一个错误

TypeError: unsupported operand type(s) for +: 'PosixPath' and 'str'

我的代码如下

import os
import cv2
import random
from pathlib import Path

path = Path(__file__).parent
path = "../img_folder"

for f in path.iterdir():

    print(f)
    f = str(f)
    img=cv2.imread(f)
    line = random.randint(0, 50)
    img[3, 3, :] = line
    cv2.imwrite(path + "/" + "photo.png", img)

回溯说代码cv2.imwrite~是错误的。我真的无法理解为什么这是错误的。是这种类型的路径错误吗？还是我使用这种方法是错误的？我应该如何解决这个问题？

我收到错误TypeError:内置操作的错误参数类型.我写

import os
import cv2
from pathlib import Path
path = Path(__file__).parent
path /= "../../img_folder"
for f in path.iterdir():
    print(f)
    img=cv2.imread(f)

在img = cv2.imread(f)中,错误发生.这是一个Python错误或目录错误吗？在print(f)中,我认为可以获得正确的目录.我该如何解决这个问题？

Bootstrap没有设置为我的Django应用程序.在谷歌控制台,无法加载资源:服务器响应状态为404(未找到)bootflat.min.css错误发生.我在settings.py中写道

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
DEBUG =True

STATIC_URL = '/static/'

STATIC_ROOT = os.path.join(BASE_DIR, "static/")

STATICFILES_DIRS = [os.path.join(BASE_DIR,'bootflat.github.io'), ]

在PythonServer_nginx.conf中

server {
    # the port your site will be served on
    listen      8000;
    # the domain name it will serve for
    server_name MyServerIPAdress; # substitute your machine's IP address or FQDN
    charset     utf-8;

    # max upload size
    client_max_body_size 75M;   # adjust to taste

    location /static {
        alias /home/ubuntu/PythonServer/PythonServer/accounts/static; # your Django project's static files - amend as required
    }

    # Finally, send …

我收到一个错误，uwsgi的建筑轮子失败。我的环境是Ubuntu，现在我想安装uwsgi，所以我运行命令 pip install uwsgi。但是发生错误

 Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-build-9t06jm4_/uwsgi/setup.py", line 126, in <module>
      distclass=uWSGIDistribution,
    File "/home/ubuntu/anaconda3/lib/python3.5/distutils/core.py", line 148, in setup
      dist.run_commands()
    File "/home/ubuntu/anaconda3/lib/python3.5/distutils/dist.py", line 955, in run_commands
      self.run_command(cmd)
    File "/home/ubuntu/anaconda3/lib/python3.5/distutils/dist.py", line 974, in run_command
      cmd_obj.run()
    File "/home/ubuntu/anaconda3/lib/python3.5/site-packages/wheel/bdist_wheel.py", line 215, in run
      self.run_command('install')
    File "/home/ubuntu/anaconda3/lib/python3.5/distutils/cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "/home/ubuntu/anaconda3/lib/python3.5/distutils/dist.py", line 974, in run_command
      cmd_obj.run()
    File "/tmp/pip-build-9t06jm4_/uwsgi/setup.py", line 77, in run
      conf = uc.uConf(get_profile())
    File "/tmp/pip-build-9t06jm4_/uwsgi/uwsgiconfig.py", line 742, in __init__ …

我写了以下代码：

import os
import cv2
import random
from pathlib import Path

path = Path(__file__).parent
path = "../img_folder"
for f in path.iterdir():

    f = str(f)

    img=cv2.imread(f)

    im_height = img.shape[0]
    im_width = img.shape[1]

但是当我运行此代码时，出现以下错误：

AttributeError: 'NoneType' 对象在 im_height = img.shape[0] 中没有属性 'shape'。

我想我无法访问图像，所以我写了print(img)andprint(type(omg))并且 None& 被返回。img_folder是一个包含 10 个图像的文件夹。当我打印出来时f，我得到：

../img_folder/.DS_Store

我不知道为什么.DS_Store包含因为img_folder只有图像。我应该如何解决这个问题？我应该怎么写这个？为什么我无法访问图像？