Guamokolatokint's questions

请告诉我，如何使用锯齿形将列表转换为矩阵？相反，有代码以锯齿形方式将矩阵转换为列表：

def zigzag(a):

    m, n = a.shape
    solution = [[] for i in range(m + n - 1)]

    for i in range(m):
        for j in range(n):
            sum = i + j
            value = a[i][j]
            index = (i, j)
            if sum % 2 == 0:
                solution[sum].insert(0, (value, index))
            else:
                solution[sum].append((value, index))

    output_vector = []
    for i in solution:
        for j in i:
            output_vector.append(j[0])

    return output_vector

有一条线

Free space "974.62MB" in the Storage[/home/doom] has dropped  below the recommended threshold "5GB", it is recommended to free up space in the storage as soon as possible

您需要从此字符串中获取引号和括号中的数据。即：974.62MB，/home/doom，5GB。我怎样才能做到这一点？

我正在编写确定时间差异的代码。两个物体之间的时间不应少于30分钟。

tdelta1= datetime.timedelta(hours=time_object.hour, minutes=time_object.minute)
tdelta2 = datetime.timedelta(hours=i.backup_time.hour, minutes=i.backup_time.minute)
res=tdelta1-tdelta2
res_to_min = res.total_seconds() / 60
if res_to_min <30:
    #do something
else:
    #do something else

所有这些都有效，除了一个时刻，第一次是当天的 23:59，第二次是第二天的 00:00。这样一来，结果就超过了30分钟。如何修复它？

一个任务会在不同的执行时间从 web 表单抛出到服务器。

但问题是，在第一个任务开始时，第二个任务没有开始。

代码示例（字典 d 作为示例输入给出）：

def test_run_func_schedule(data):
    print('test_run_func_schedule:',data)



def test_send_func_schedule(data):
    d= {'vm1': 2, 'vm2': 4, 'vm3': 8}

    for k,v in d.items():
        schedule.every(v).seconds.do(lambda: test_run_func_schedule(k)).tag('second-tasks', 'VM_'+k)
        while 1:
            schedule.run_pending()
            time.sleep(1)

只有 vm1 输出到控制台。其余不显示。如何使其余的任务也被执行？

[root@host2 etc]# df -hT
Filesystem                   Type      Size  Used Avail Use% Mounted on
devtmpfs                     devtmpfs  4.8G     0  4.8G   0% /dev
tmpfs                        tmpfs     4.9G  4.0K  4.9G   1% /dev/shm
tmpfs                        tmpfs     4.9G   18M  4.9G   1% /run
tmpfs                        tmpfs     4.9G     0  4.9G   0% /sys/fs/cgroup
/dev/mapper/almalinux-root   xfs        70G   17G   54G  23% /
/dev/mapper/almalinux-home   xfs        94G  803M   93G   1% /home
/dev/sda1                    xfs      1014M  264M  751M  26% /boot
tmpfs                        tmpfs     989M   36K  989M   1% /run/user/1000
192.168.203.129:/data/engine nfs4       70G   17G   54G  23% /rhev/data-center/mnt/192.168.203.129:_data_engine

[root@host2 etc]# lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                  8:0    0  171G  0 disk 
├─sda1               8:1    0    1G  0 part /boot
└─sda2               8:2    0  170G  0 part 
├─almalinux-root 253:0    0   70G  0 lvm  /
├─almalinux-swap 253:1    0  6.7G  0 lvm  [SWAP]
└─almalinux-home 253:2    0 93.3G  0 lvm  /home
sr0                 11:0    1 1024M  0 rom  


[root@host2 etc]# fdisk -l
Disk /dev/sda: 171 GiB, 183609851904 bytes, 358612992 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0f8a62c3

Device     Boot   Start       End   Sectors  Size Id Type
/dev/sda1  *       2048   2099199   2097152    1G 83 Linux
/dev/sda2       2099200 358612991 356513792  170G 8e Linux LVM


Disk /dev/mapper/almalinux-root: 70 GiB, 75161927680 bytes, 
 146800640 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/almalinux-swap: 6.7 GiB, 7218397184 bytes, 
14098432 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/almalinux-home: 93.3 GiB, 100151590912 bytes, 
195608576 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

您需要从 /dev/mapper/almalinux-home 中“撕下”50 个 gig，并将它们附加到 192.168.203.129:/data/engine 如何做到这一点？

所有这些都在一台虚拟机上运行。192.168.203.129:/data/engine 不是远程驱动器。全部在一张磁盘上。

您需要在 CentOS 中打开 5000 端口。

将端口 5000 添加到文件中

/etc/services
testport        5000/tcp   # Application Name

添加到防火墙

firewall-cmd --zone=public --add-port=5000/tcp --permanent
firewall-cmd --reload

但是他还是不行。团队

netstat -na |grep 5000

不显示

有一个数据结构，内容如下

var data = {"disk_name":["new","my"],"luks_uuid":["ec06935d-a72a-460a-aaba-205b58a53c01","87be6eca-e043-4139-b637-f91229631d29"],"uuid_disk":["58fbc706-d1ef-4922-8cf6-9078a7fa64cf","6708c974-158f-438a-9518-3225cecc9c0c"]}

需要转换成以下

list = [
{"disk_name":"new","luks_uuid":"ec06935d-a72a-460a-aaba-205b58a53c01","uuid_disk":"58fbc706-d1ef-4922-8cf6-9078a7fa64cf"},
{"disk_name":"my","luks_uuid":"87be6eca-e043-4139-b637-f91229631d29","uuid_disk":"6708c974-158f-438a-9518-3225cecc9c0c"}
]

我不知道如何正确地遍历这个 json 来组装这样一个结构。我寻求帮助

处理请求时出错

来自外部的请求被阻止：单一来源策略禁止读取 https://my.server.name:5000/postmethod处的远程资源。（原因：CORS 请求失败）。状态码：（空）。

服务器代码

import socket
from flask import Flask,render_template,request,jsonify
from flask_cors import CORS
host = socket.gethostname()
app = Flask(__name__)
CORS(app)

@app.route('/postmethod', methods=['POST'])

def get_post_javascript_data():
    data = request.get_json()
    data = jsonify(data)
    data.headers.add('Access-Control-Allow-Origin','*')
    return data

if __name__ == "__main__":
    app.run(host=host,ssl_context='adhoc')

javascript代码

 $.post( "https://my.server.name:5000/postmethod", {
        encryption: JSON.stringify(value_post)});

如果我在浏览器中访问https://my.server.name:5000/postmethod，则会收到安全风险错误。错误代码：SEC_ERROR_UNKNOWN_ISSUER。单击“接受风险并继续”。并且只有在请求正常发送之后。如何解决？

如何使标签按钮更大？

图像中的示例（组分和混合物选项卡）

现在获得了通常的标准选项卡。下面的代码

UI_app2.py

from PySide2 import QtCore, QtGui, QtWidgets

class Ui_Form(object):
    def setupUi(self, Form):
    self.tabWidget = QtWidgets.QTabWidget()
    self.tabWidget.setLayoutDirection(QtCore.Qt.LeftToRight)
    self.tabWidget.setMinimumSize(600, 420)
    self.tabWidget.setAutoFillBackground(True)
    self.tabWidget.setObjectName("tabWidget")

    self.tab1 = QtWidgets.QWidget()
    self.tab1.setObjectName("tab1")
    self.tabWidget.addTab(self.tab1, "tab1")

    self.tab2 = QtWidgets.QWidget()
    self.tab2.setObjectName("tab2")
    self.tabWidget.addTab(self.tab2, "tab2")

    self.grid_main = QtWidgets.QGridLayout(Form)
    self.grid_main.addWidget(self.tabWidget)
    Form.setLayout(self.grid_main)

应用程序2.py

from PySide2 import QtWidgets, QtGui, QtCore
from UI_app2 import Ui_Form
import sys

class MyWindow(QtWidgets.QWidget, Ui_Form):
    def __init__(self):
        super().__init__()
        self.setupUi(self)


    

if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = MyWindow()
    app.setStyle('Windows')
    window.show()
    sys.exit(app.exec_())

在 Ubuntu 上运行 NiFi

./nifi.sh start

控制台输出

Java home: /usr/lib/jvm/java-11-openjdk-amd64
NiFi home: /home/user/nifi-1.15.0

Bootstrap Config File: /home/user/nifi-1.15.0/conf/bootstrap.conf

我去 http://localhost:8080/nifi，但它说我无法访问该站点。

状态输出

user@user-System-Product-Name:~/nifi-1.15.0/bin$ ./nifi.sh status

Java home: /usr/lib/jvm/java-11-openjdk-amd64
NiFi home: /home/user/nifi-1.15.0

Bootstrap Config File: /home/user/nifi-1.15.0/conf/bootstrap.conf

2021-12-14 09:29:09,686 INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is 
currently running, listening to Bootstrap on port 45971, PID=53923

从 nifi-app.log 记录

2021-12-14 10:15:57,028 INFO [main] 
o.e.jetty.server.handler.ContextHandler Started 
o.e.j.w.WebAppContext@4ced17f3{nifi-api,/nifi- 
api,file:///home/user/nifi-1.15.0/work/jetty/nifi-web-api- 
1.15.0.war/webapp/,AVAILABLE}{./work/nar/extensions/nifi-server- 
nar-1.15.0.nar-unpacked/NAR-INF/bundled-dependencies/nifi-web- 
api-1.15.0.war}
2021-12-14 10:15:57,268 INFO [main] 
o.e.j.a.AnnotationConfiguration Scanning elapsed time=81ms
2021-12-14 10:15:57,309 INFO [main] 
o.e.j.s.h.C._nifi_content_viewer No Spring 
WebApplicationInitializer types detected on classpath
2021-12-14 10:15:57,314 INFO [main] 
o.e.jetty.server.handler.ContextHandler Started 
o.e.j.w.WebAppContext@734a149a{nifi-content-viewer,/nifi-content- 
viewer,file:///home/user/nifi-1.15.0/work/jetty/nifi-web-content- 
viewer-1.15.0.war/webapp/,AVAILABLE}{./work/nar/extensions/nifi- 
server-nar-1.15.0.nar-unpacked/NAR-INF/bundled-dependencies/nifi- 
web-content-viewer-1.15.0.war}
2021-12-14 10:15:57,333 INFO [main] 
o.e.j.a.AnnotationConfiguration Scanning elapsed time=5ms
2021-12-14 10:15:57,334 WARN [main] 
o.e.j.webapp.StandardDescriptorProcessor Duplicate mapping from / 
to default
2021-12-14 10:15:57,335 INFO [main] 
o.e.j.s.h.ContextHandler._nifi_docs No Spring 
WebApplicationInitializer types detected on classpath
2021-12-14 10:15:57,370 INFO [main] 
o.e.jetty.server.handler.ContextHandler Started 
o.e.j.w.WebAppContext@6ce9771c{nifi-docs,/nifi- 
docs,file:///home/user/nifi-1.15.0/work/jetty/nifi-web-docs- 
1.15.0.war/webapp/,AVAILABLE}{./work/nar/extensions/nifi-server- 
nar-1.15.0.nar-unpacked/NAR-INF/bundled-dependencies/nifi-web- 
docs-1.15.0.war}
2021-12-14 10:15:57,416 INFO [main] 
o.e.j.a.AnnotationConfiguration Scanning elapsed time=33ms
2021-12-14 10:15:57,417 INFO [main] 
o.e.j.server.handler.ContextHandler._ No Spring 
WebApplicationInitializer types detected on classpath
2021-12-14 10:15:57,448 INFO [main] 
o.e.jetty.server.handler.ContextHandler Started 
o.e.j.w.WebAppContext@4a9b92c6{nifi- 
error,/,file:///home/user/nifi-1.15.0/work/jetty/nifi-web-error- 
1.15.0.war/webapp/,AVAILABLE}{./work/nar/extensions/nifi-server- 
nar-1.15.0.nar-unpacked/NAR-INF/bundled-dependencies/nifi-web- 
error-1.15.0.war}
2021-12-14 10:15:57,652 INFO [main] 
o.eclipse.jetty.server.AbstractConnector Started 
ServerConnector@38732372{SSL, (ssl, http/1.1)}{127.0.0.1:8443}
2021-12-14 10:15:57,652 INFO [main] 
org.eclipse.jetty.server.Server Started @24325ms
2021-12-14 10:15:57,682 INFO [main] 
org.apache.nifi.nar.NarAutoLoader Starting NAR Auto-Loader for 
directory ./extensions ...
2021-12-14 10:15:57,683 INFO [main] 
org.apache.nifi.web.server.JettyServer NiFi has started. The UI 
is available at the following URLs:
2021-12-14 10:15:57,684 INFO [main] 
org.apache.nifi.web.server.JettyServer 
https://127.0.0.1:8443/nifi
2021-12-14 10:15:57,684 INFO [main] 
org.apache.nifi.BootstrapListener Successfully initiated 
communication with Bootstrap
2021-12-14 10:15:57,685 INFO [main] org.apache.nifi.NiFi 
Controller initialization took 12136429891 nanoseconds ( 12  
seconds).
2021-12-14 10:16:14,358 INFO [pool-9-thread-1] 
o.a.n.c.r.WriteAheadFlowFileRepository Initiating checkpoint of 
FlowFile Repository
2021-12-14 10:16:14,359 INFO [pool-9-thread-1] 
o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed 
FlowFile Repository with 0 records in 0 milliseconds

测试资源https://auth.aragorn.xyz/sign-in

编码

from selenium import webdriver

driver = webdriver.Firefox(executable_path="drivers/geckodriver")
driver.get("https://auth.aragorn.xyz/sign-in")
elem_push = driver.find_element_by_id("email")

链接打开，一切正常。但它没有找到任何元素。没有按钮，没有字段。代码中有元素 ID。问题是什么？

试图弄清楚如何比较字符串示例字符串

1. г. Москва, вн.тер.г. муниципальный округ Тверской, ул Кузнецкий Мост, д. 4/3, стр. 1, этаж МАНСАРДНЫЙ, ПОМ. I, ком. 413
2. г. Москва Тверской ул Кузнецкий Мост д. 4/3 стр. 1

3. 105005 г. Москва 2-я Бауманская ул. 5 стр. 1
4. 105005 г. Москва ул. Радио д. 20

如您所见，第 1 行和第 2 行包含基本相同的地址。第 3 行和第 4 行不同。我不知道如何让程序显示地址 1 和 2 相同。我什至不知道从哪里开始......

地址示例

г. Москва, пл. Спартаковская, д.  14 стр.  3 этаж / ком. / офис  2/9/108
г. Москва, ул. 14-Я Парковая, д.  8 офис  144
г. Москва, проезд Строительный, д.  7А корп.  28 этаж  2, ком. 223
г. Москва, ул. Фрязевская, д.  10 стр. 2 этаж  4 пом. XXI ком. 8
г. Москва, ул. Студенческая, д.  20 кв.  18
г. Москва, проспект Мира, д.  70 этаж  1А П III К 3 офис 10
г. Москва, пер. Луков, д.  4 этаж  ПОДВ пом. I ком. 8 РМ4Б
г. Москва, ул. Нагорная, д.  5 к.  4 этаж  1 ком. 11 офис 48
г. Москва, шоссе Энтузиастов, д.  56 стр.  32 пом.  329
г. Москва, ул. 3-Я Хорошёвская, д.  2 стр.  1 Э 3 П 21 К2 офис 5
г. Москва, набережная Бережковская, д.  20 стр.  5 пом.  I ком. 3
г. Москва, вн.тер.г. муниципальный округ Старое Крюково, г Зеленоград, к. 903, кв. 327

从地址中我只需要获取城市、街道名称、门牌号。没有楼层、办公室、公寓等。那是

г. Москва, пл. Спартаковская, д.  14 стр.  3
г. Москва, ул. 14-Я Парковая, д.  8
г. Москва, проезд Строительный, д.  7А корп.  28
г. Москва, ул. Фрязевская, д.  10 стр. 2
г. Москва, ул. Студенческая, д.  20
г. Москва, проспект Мира, д.  70
г. Москва, пер. Луков, д.  4
г. Москва, проспект Рязанский, д.  86/1 стр.  1
г. Москва, проезд Электролитный, д.  1 корп.  3

我没有任何代码示例，因为 我什至不知道从哪里开始。帮助请

我有一个 python 项目。我想用它制作一个 deb 包以安装在其他计算机上。创建了一个 setup.py 文件和一个包含以下文件的 debian 文件夹：changelog、compat、control、copyright、rules。

我运行命令

dpkg-buildpackage -b

给出错误信息

dpkg-buildpackage: info: source package hsi
dpkg-buildpackage: info: source version 1.0
dpkg-buildpackage: info: source distribution UNRELEASED
dpkg-buildpackage: info: source changed by argus <argus@argus>
dpkg-buildpackage: info: host architecture amd64
dpkg-source --before-build .
fakeroot debian/rules clean
dh clean --with python3 --buildsystem=pybuild
Use of uninitialized value $v in substitution (s///) at  /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm line 1729, <$fd> line 7.
Use of uninitialized value $v in substitution (s///) at /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm line 1730, <$fd> line 7.
 dh_auto_clean -O--buildsystem=pybuild
Use of uninitialized value $v in substitution (s///) at /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm line 1729, <$fd> line 7.
Use of uninitialized value $v in substitution (s///) at /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm line 1730, <$fd> line 7.
E: Please add appropriate interpreter package to Build-Depends,  see pybuild(1) for details.this: $VAR1 = bless( {
             'pyvers' => '',
             'pypydef' => '',
             'parallel' => '4',
             'cwd' => '/home/argus/pack',
             'builddir' => undef,
             'sourcedir' => '.',
             'pydef' => '',
             'py3vers' => '3.9',
             'py3def' => '3.9'
           }, 'Debian::Debhelper::Buildsystem::pybuild' );
deps: $VAR1 = [];
make: *** [debian/rules:4: clean] Error 25
dpkg-buildpackage: error: fakeroot debian/rules clean subprocess     returned exit status 2

规则文件的内容

#!/usr/bin/make -f

%:
    dh $@ --with python3 --buildsystem=pybuild

控制文件的内容

Source: hsi
Maintainer: Developer
Build-Depends: debhelper (>=10)

Package: hsi
Architecture: all

我无法弄清楚错误在哪里？

我举一个小应用程序的例子。它显示您要在其上绘制形状的图像。如果你不放大图像，那么一切都很好。但是当图像被放大时，图形被放置在错误的位置。

在此示例中，单击图像会放置一个点。如果您不更改缩放比例，那么一切正常。如果放大，则该点不会放置在鼠标光标所在的位置，而是更远。无法弄清楚如何解决这个问题。我还附上了一张 512x512 的图片。比例随鼠标滚轮而变化。

UI_test.py

from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtCore import Qt
from random import randint

class Ui_Form(object):
    def setupUi(self, Form):
        Form.resize(1300, 700)
        self.layout = QtWidgets.QHBoxLayout()
        self.layout.setContentsMargins(0, 0, 0, 0)
        self.listWidget = QtWidgets.QListWidget()
        self.layout.addWidget(self.listWidget)
        self.stackedWidget = QtWidgets.QStackedWidget()
        self.layout.addWidget(self.stackedWidget)
        self.listWidget.currentRowChanged.connect(
            self.stackedWidget.setCurrentIndex)

        item1 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/settings.png'),'CamSettings', self.listWidget)
        item2 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/explore.png'),'Explore', self.listWidget)

        item1.setSizeHint(QtCore.QSize(10, 60))
        item2.setSizeHint(QtCore.QSize(10, 60))

        item1.setTextAlignment(QtCore.Qt.AlignCenter)
        item2.setTextAlignment(QtCore.Qt.AlignCenter)

        label1 = QtWidgets.QLabel('Это страница 1')
        label2= QtWidgets.QLabel('Это страница 2')
        label1.setAlignment(QtCore.Qt.AlignCenter)
        label2.setAlignment(QtCore.Qt.AlignCenter)
        label1.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))
        label2.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))

        self.img_rgb = QtWidgets.QGraphicsScene()
        self.view_rgb = QtWidgets.QGraphicsView()
        self.view_rgb.setScene(self.img_rgb )
        pixmap_rgb = QtGui.QPixmap()
        self.img_rgb.addPixmap('pic.png')
        border_style_rgb = f'border-style: solid; border-width: 2px;  background-color:#757575;'
        self.view_rgb.setStyleSheet(border_style_rgb)
        self.view_rgb.setFixedSize(520,520)
        self.view_rgb.mousePressEvent = Form.press_event
        #self.view_rgb.mouseMoveEvent = Form.move_event
        #self.view_rgb.mouseReleaseEvent = Form.release_event
        self.view_rgb.wheelEvent = Form.wheel_event

        first_panel_left = QtWidgets.QVBoxLayout()
        first_panel_left.setAlignment(Qt.AlignTop)
        first_panel_frame_left = QtWidgets.QFrame()
        first_panel_frame_left.setMinimumWidth(200)
        first_panel_frame_left.setLayout(first_panel_left)
        first_panel_right = QtWidgets.QVBoxLayout()
        first_panel_right.addWidget(self.view_rgb)
        first_panel_right.addStretch()
        first_panel_frame_right = QtWidgets.QFrame()
        first_panel_frame_right.setLayout(first_panel_right)
        main_first_box = QtWidgets.QHBoxLayout()
        main_first_box.addWidget(first_panel_frame_left)
        main_first_box.addWidget(first_panel_frame_right)
        first_container = QtWidgets.QWidget()
        first_container.setLayout(main_first_box)
        self.stackedWidget.addWidget(first_container)
        self.stackedWidget.addWidget(label2)
        Form.setLayout(self.layout)

应用程序.py

import sys
from PySide2 import QtWidgets
from UI_test import Ui_Form
from PySide2 import QtWidgets, QtGui, QtCore
from tools import DotPainter

class App(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)
        self.ui = Ui_Form()
        self.ui.setupUi(self)
        self._zoom = 0

    def press_event(self, event):
        self.clickPos = event.pos()
        self.clickBtn= event.button()
        print(self.clickPos)
        if self.clickBtn & QtCore.Qt.LeftButton:
            self.pointItem=DotPainter(self.ui.img_rgb,self.clickPos)

    def fitInView(self):
        rect = QtCore.QRectF(0.0, 0.0, 512.0, 512.0)
        if not rect.isNull():
            self.ui.view_rgb.setSceneRect(rect)
            unity = self.ui.view_rgb.transform().mapRect(QtCore.QRectF(0, 0, 1, 1))
            self.ui.view_rgb.scale(1 / unity.width(), 1 / unity.height())
            viewrect = self.ui.view_rgb.viewport().rect()
            scenerect = self.ui.view_rgb.transform().mapRect(rect)
            factor = min(viewrect.width() / scenerect.width(),
                        viewrect.height() / scenerect.height())
            self.ui.view_rgb.scale(factor, factor)
            self._zoom = 0

    def wheel_event(self,event):
        if event.angleDelta().y() > 0:
            factor = 1.25
            self._zoom += 1
        else:
            factor = 0.8
            self._zoom -= 1
        if self._zoom > 0:
            self.ui.view_rgb.scale(factor, factor)
        elif self._zoom == 0:
            self.fitInView()
        else:
            self._zoom = 0


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = App()
    window.show()
    sys.exit(app.exec_())

工具.py

from PySide2.QtCore import Qt,QRectF,QPointF,QSizeF
from PySide2.QtGui import QPen,QColor,QBrush,QPolygonF
from PySide2 import QtWidgets, QtGui, QtCore


class DotPainter(object):
    #класс для рисования точки
    def __init__(self, canvas, start):
        self.start = start
        self.canvas = canvas
        self.point=QRectF()
        self.width = self.point.width()
        self.height = self.point.height()
        self.PointF = QPointF(float(start.x()), float(start.y()))
        self.point.setTopLeft(self.PointF)
        self.point.setSize(QSizeF(8, 8))
        self.linePen = QPen(QtGui.QColor(255,0,0), 2)
        self.areaBrush = QBrush(QColor(255,0,0))
        self.pointItem=self.canvas.addRect(self.point,
                                              self.linePen,self.areaBrush)
    def mouseReleaseEvent(self, event):
        #функция события мыши для получения размеров точки
        self.width = self.point.width()
        self.height = self.point.height()

在GUI中，当您右键单击表时，контекстное меню. 但问题是，之后这个上下文菜单不仅可以在表格中调用，还可以在表格之外的应用程序窗口中的任何位置调用QTableWidget。

如何解决？
我需要调用特定表上的特定菜单。而别处。

这是一个简单的GUI示例，其中清楚地重现了错误：

应用程序.py

import sys
from PySide2 import QtWidgets
from UI_test import Ui_Form
from PySide2 import QtWidgets, QtGui, QtCore

class App(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)
        self.ui = Ui_Form()
        self.ui.setupUi(self)

    def contextMenuEvent(self,e):
        #создание и вызов контекстного меню
        self.menu = QtWidgets.QMenu(self)
        Action1 = QtWidgets.QAction('Action1', self)
        Action2 = QtWidgets.QAction('Action2', self)
        Action3 = QtWidgets.QAction('Action3', self)
        self.menu.addAction(Action1)
        self.menu.addAction(Action2)
        self.menu.addAction(Action3)
        self.menu.popup(QtGui.QCursor.pos())



if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = App()
    window.show()
    sys.exit(app.exec_())

UI_test.py

from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtCore import Qt
from random import randint

class Ui_Form(object):
    def setupUi(self, Form):
        Form.resize(1300, 700)
        self.layout = QtWidgets.QHBoxLayout()
        self.layout.setContentsMargins(0, 0, 0, 0)
        self.listWidget = QtWidgets.QListWidget()
        self.layout.addWidget(self.listWidget)
        self.stackedWidget = QtWidgets.QStackedWidget()
        self.layout.addWidget(self.stackedWidget)
        self.listWidget.currentRowChanged.connect(
        self.stackedWidget.setCurrentIndex)

        item1 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/settings.png'),'CamSettings', self.listWidget)
        item2 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/explore.png'),'Explore', self.listWidget)

        item1.setSizeHint(QtCore.QSize(10, 60))
        item2.setSizeHint(QtCore.QSize(10, 60))

        item1.setTextAlignment(QtCore.Qt.AlignCenter)
        item2.setTextAlignment(QtCore.Qt.AlignCenter)

        label1 = QtWidgets.QLabel('Это страница 1')
        label2= QtWidgets.QLabel('Это страница 2')
        label1.setAlignment(QtCore.Qt.AlignCenter)
        label2.setAlignment(QtCore.Qt.AlignCenter)
        label1.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
        randint(0, 255), randint(0, 255), randint(0, 255)))
        label2.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
        randint(0, 255), randint(0, 255), randint(0, 255)))

        self.table_cubes = QtWidgets.QTableWidget()
        self.table_cubes.setColumnCount(1)
        self.table_cubes.setObjectName('tableCubes')
        self.table_cubes.setHorizontalHeaderLabels(['Название куба'])
        header_class = self.table_cubes.horizontalHeader()
        header_class.hide()
        header_v_cube = self.table_cubes.verticalHeader()
        header_v_cube.setStyleSheet(' background-color: #232939;')
        self.table_cubes.setFixedWidth(310)
        self.table_cubes.setFixedHeight(330)
        self.table_cubes.setColumnWidth(0, 200)
        self.table_cubes.contextMenuEvent = Form.contextMenuEvent
        first_panel_left = QtWidgets.QVBoxLayout()
        first_panel_left.setAlignment(Qt.AlignTop)
        first_panel_frame_left = QtWidgets.QFrame()
        first_panel_frame_left.setMinimumWidth(200)
        first_panel_frame_left.setLayout(first_panel_left)
        first_panel_right = QtWidgets.QVBoxLayout()
        first_panel_right.addWidget(self.table_cubes)
        first_panel_right.addStretch()
        first_panel_frame_right = QtWidgets.QFrame()
        first_panel_frame_right.setLayout(first_panel_right)
        main_first_box = QtWidgets.QHBoxLayout()
        main_first_box.addWidget(first_panel_frame_left)
        main_first_box.addWidget(first_panel_frame_right)
        first_container = QtWidgets.QWidget()
        first_container.setLayout(main_first_box)
        self.stackedWidget.addWidget(first_container)
        self.stackedWidget.addWidget(label2)
        Form.setLayout(self.layout)

有一个数据结构，内容如下：

anno_data=[['Item1', 'Rectangle', 'label1', '018', '[276, 22]', '[18.0, 21.0]'],
 ['Item1', 'Polygon', 'label1', '018', '[[199.0, 179.0], [200.0, 179.0], [201.0, 179.0], [202.0, 179.0], [203.0, 179.0], [204.0, 179.0], [207.0, 211.0], [206.0, 211.0], [205.0, 211.0], [204.0, 211.0], [203.0, 211.0], [202.0, 211.0], [201.0, 211.0], [200.0, 211.0], [199.0, 211.0], [198.0, 211.0], [197.0, 211.0], [195.0, 210.0], [194.0, 209.0], [192.0, 207.0], [191.0, 206.0], [192.0, 206.0]]', ''],
           ['Item1', 'Point', 'label1', '018', '[380, 171]', ''],
           ['Item2', 'Rectangle', 'label1', '032', '[67, 80]', '[39.0, 46.0]']]

可以看出这是一个列表列表。在第三个位置的每个列表中都有元素“018”和“032”。您需要参与这些元素，并基于它们创建以下结构

{
"032": {
    "filename": "032",
    "regions": {
        "0": {
            "shape_attributes": {
                "name": "Rectangle",
                "x": 67,
                "y": 80,
                "width": 39.0,
                "height": 46.0
            },
            "region_attributes": {
                "label": "label1"
            }
        }
    }
},
"018": {
    "filename": "018",
    "regions": {
        "0": {
            "shape_attributes": {
                "name": "Rectangle",
                "x": 276,
                "y": 22,
                "width": 18.0,
                "height": 21.0
            },
            "region_attributes": {
                "label": "label1"
            }
        },
        "1": {
            "shape_attributes": {
                "name": "Point",
                "cx": 380,
                "cy": 171
            },
            "region_attributes": {
                "label": "label1"
            }
        }
       
    }
}   
}

我的代码

def get_w_h(str_wh):
    to_lst = list(eval(str_wh))
    return to_lst

def all_x_y(fig, coords):
    to_lst = list(eval(coords))
    if fig == 'Point':
        return [[to_lst[0]], [to_lst[1]]]
    else:
        x = to_lst[0]
        y = to_lst[1]
        return x,y


dic=dict()
uniq=set([l1[3] for l1 in anno_data])
for k in uniq:
    dic[k]=[]

med_d={}

for i in anno_data:
    it=0
    dic_sh_att = {}
    dic_reg_att={}
    if i[3] in dic:
        if i[1]=='Rectangle':
            dic_sh_att['name'] = i[1]
            dic_sh_att['x'] = all_x_y(i[1], i[4])[0]
            dic_sh_att['y'] = all_x_y(i[1], i[4])[1]
            dic_sh_att['width']=get_w_h(i[5])[1]
            dic_sh_att['height']= get_w_h(i[5])[0]
    
        else:
            dic_sh_att['name'] = i[1]
            dic_sh_att['cx'] = all_x_y(i[1], i[4])[0]
            dic_sh_att['cy'] = all_x_y(i[1],i[4])[1]
        dic_reg_att["label"] = i[2]
        dic_reg_att["class"]=str(it)
        med_d[it]={"shape_attributes":dic_sh_att,
              "region_attributes": dic_reg_att}
        dic[i[3]].append(med_d)
        it += 1

但结果不一样。我不知道如何正确地做到这一点。帮助请

我有一个在我的应用程序中打开新窗口的按钮。
我希望这些窗户以某种方式“漂亮地”打开。好吧，在左边，他们要么从上面航行，要么有某种延迟。

我在任何地方都找不到这样的例子。有人可以告诉我如何为子窗口制作类似的样式吗？谢谢你。

我举一个打开新窗口的简单例子

UI_test.py

from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtCore import Qt
from random import randint
class Ui_Form(object):
def setupUi(self, Form):
    Form.resize(1300, 700)
    self.layout = QtWidgets.QHBoxLayout()
    self.layout.setContentsMargins(0, 0, 0, 0)
    self.layout.setSpacing(0)
    self.listWidget = QtWidgets.QListWidget()
    self.layout.addWidget(self.listWidget)
    self.stackedWidget = QtWidgets.QStackedWidget()
    self.layout.addWidget(self.stackedWidget)
    self.listWidget.currentRowChanged.connect(
        self.stackedWidget.setCurrentIndex)
    item1 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/settings.png'),'CamSettings', self.listWidget)
    item2 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/explore.png'),'Explore', self.listWidget)
    item1.setSizeHint(QtCore.QSize(10, 60))
    item2.setSizeHint(QtCore.QSize(10, 60))
    item1.setTextAlignment(QtCore.Qt.AlignCenter)
    item2.setTextAlignment(QtCore.Qt.AlignCenter)
    label2= QtWidgets.QLabel('Это страница 2')
    label2.setAlignment(QtCore.Qt.AlignCenter)
    label2.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
        randint(0, 255), randint(0, 255), randint(0, 255)))
    create_tiff_but = QtWidgets.QPushButton('Create TIFF')
    create_tiff_but.setObjectName('createTifBut')
    create_tiff_but.setFixedSize(200, 70)
    create_tiff_but.clicked.connect(Form.create_tiff)
    image_panel_buttons = QtWidgets.QHBoxLayout()
    image_panel_buttons.addWidget(create_tiff_but)
    image_panel_buttons_frame = QtWidgets.QFrame()
    image_panel_buttons_frame.setLayout(image_panel_buttons)
    main_first_box = QtWidgets.QVBoxLayout()
    main_first_box.addWidget(image_panel_buttons_frame)
    first_container = QtWidgets.QWidget()
    first_container.setLayout(main_first_box)
    self.stackedWidget.addWidget(first_container)
    self.stackedWidget.addWidget(label2)
    Form.setLayout(self.layout)

应用程序.py

import sys
import os
from PySide2 import QtWidgets
from PySide2 import QtWidgets, QtGui, QtCore
from UI_test import Ui_Form
from create_tiff import Create_TIFF

class App(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)
        self.ui = Ui_Form()
        self.ui.setupUi(self)

    def create_tiff(self):
        # функция открытия диалогового окна для создания tiff
        self.ct = Create_TIFF()
        self.ct.displayInfo()

if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = App()
    window.show()
    sys.exit(app.exec_())

create_tiff.py

import os
import json
from PySide2 import QtWidgets
from PySide2 import QtCore

class Create_TIFF(QtWidgets.QWidget):
#модуль с диалоговым окном для создания tiff файла
def __init__(self, parent=None):
    super(Create_TIFF, self).__init__(parent)
    self.setFixedWidth(400)
    self.setFixedHeight(220)
    self.setObjectName('modalTIFF')
    self.setWindowTitle('Create TIFF')
    self.json=None
    self.path=None
    button_json = QtWidgets.QPushButton("JSON")
    button_json.setObjectName('modalJSONBtn')
    button_json.setFixedWidth(90)
    button_img = QtWidgets.QPushButton("IMG PATH")
    button_img.setObjectName('modalImgPathBtn')
    button_img.setFixedWidth(90)
    button_tiff = QtWidgets.QPushButton("Create TIFF")
    button_tiff.setObjectName('modalCrtTIFFBtn')
    button_tiff.setFixedSize(200, 70)
    json_label = QtWidgets.QLabel('Название json')
    self.name_json= QtWidgets.QLineEdit()
    self.name_json.setFixedWidth(160)
    path_label = QtWidgets.QLabel('Путь к файлу')
    self.name_path = QtWidgets.QLineEdit()
    self.name_path.setFixedWidth(160)
    first_h_box = QtWidgets.QHBoxLayout()
    first_h_box.addWidget(json_label)
    first_h_box.addWidget(self.name_json)
    first_h_box.addWidget(button_json)
    second_h_box = QtWidgets.QHBoxLayout()
    second_h_box.addWidget(path_label)
    second_h_box.addWidget(self.name_path)
    second_h_box.addWidget(button_img)
    first_h_box_frame = QtWidgets.QFrame()
    first_h_box_frame.setLayout(first_h_box)
    second_h_box_frame = QtWidgets.QFrame()
    second_h_box_frame.setLayout(second_h_box)
    vbox = QtWidgets.QVBoxLayout()
    vbox.addWidget(first_h_box_frame)
    vbox.addWidget(second_h_box_frame)
    vbox.addWidget(button_tiff,alignment=QtCore.Qt.AlignCenter)
    self.setLayout(vbox)
    resolution = QtWidgets.QDesktopWidget().screenGeometry()
    self.move((resolution.width() / 2) - (self.frameSize().width() / 2),
              (resolution.height() / 2) - (self.frameSize().height() / 2))

def displayInfo(self):
    self.show()

应用外观

如您所见，一个灯条将按钮列表分隔在主窗口的左侧。我不明白它来自哪里或如何删除它。请告诉我。

应用程序.py

import sys
from PySide2 import QtWidgets
from UI_test import Ui_Form

class App(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)
        self.ui = Ui_Form()
        self.ui.setupUi(self)


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = App()
    File = open("styles/style.qss",'r')
    with File:
        qss = File.read()
    app.setStyleSheet(qss)
    window.show()
    sys.exit(app.exec_())

样式.qss

QListWidget, QListView, QTreeWidget, QTreeView {
outline: 0px;
    }
QListWidget {
    min-width: 120px;
    max-width: 180px;
    color: white;
    background: rgb(30, 30, 30);
}
QListWidget::item:selected {
    background: rgb(168, 71, 245);
   /* border-left: 2px solid rgb(9, 187, 7);*/
}
HistoryPanel::item:hover {background: rgb(52, 52, 52);}
QStackedWidget {background: rgb(30, 30, 30);}
QLabel {color: white;}
QLabel#mainPic {border-style: solid; border-width: 2px;  background-color:#757575;}
QListWidget {background-color: #454e5e;
    color: rgb(30, 30, 30);
    font-size: 12px;
    font-weight: bold;
    border: 1px solid #191919;
    show-decoration-selected: 0;
    padding-left: -13px;
    padding-right: -13px;}

QListWidget::item
{
color: #31cecb;
background-color: #454e5e;
border: none;
padding: 5px;
border-radius: 0px;
padding-left : 10px;
height: 42px;
}
QListWidget::item:selected
{
color: rgb(143, 58, 132);
background-color: #31cecb;
}
QListWidget::item:!selected
{
color:white;
background-color: transparent;
border: none;
padding-left : 10px;
}

QListWidget::item:!selected:hover
{
color: black;
background-color: #bcbdbb;
border: none;
padding-left : 10px;
}

UI_test.py

from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtCore import Qt
from random import randint

class Ui_Form(object):
    def setupUi(self, Form):
        Form.resize(1300, 700)
        self.layout = QtWidgets.QHBoxLayout()
        self.layout.setContentsMargins(0, 0, 0, 0)
        self.listWidget = QtWidgets.QListWidget()
        self.layout.addWidget(self.listWidget)
        self.stackedWidget = QtWidgets.QStackedWidget()
        self.layout.addWidget(self.stackedWidget)
        self.listWidget.currentRowChanged.connect(
            self.stackedWidget.setCurrentIndex)

        item1 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/settings.png'),'CamSettings', self.listWidget)
        item2 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/explore.png'),'Explore', self.listWidget)
        item3 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/models.png'),'Models', self.listWidget)
        item4 = QtWidgets.QListWidgetItem(QtGui.QIcon('icons/live.png'),'Live', self.listWidget)

        item1.setSizeHint(QtCore.QSize(10, 60))
        item2.setSizeHint(QtCore.QSize(10, 60))
        item3.setSizeHint(QtCore.QSize(10, 60))
        item4.setSizeHint(QtCore.QSize(10, 60))

        item1.setTextAlignment(QtCore.Qt.AlignCenter)
        item2.setTextAlignment(QtCore.Qt.AlignCenter)
        item3.setTextAlignment(QtCore.Qt.AlignCenter)
        item4.setTextAlignment(QtCore.Qt.AlignCenter)

        label1 = QtWidgets.QLabel('Это страница 1')
        label2= QtWidgets.QLabel('Это страница 2')
        label3 = QtWidgets.QLabel('Это страница 3')
        label4 = QtWidgets.QLabel('Это страница 4')
        
        label1.setAlignment(QtCore.Qt.AlignCenter)
        label2.setAlignment(QtCore.Qt.AlignCenter)
        label3.setAlignment(QtCore.Qt.AlignCenter)
        label4.setAlignment(QtCore.Qt.AlignCenter)

        label1.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))
        label2.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))
        label3.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))
        label4.setStyleSheet('background: rgb(%d, %d, %d); margin: 50px;' % (
            randint(0, 255), randint(0, 255), randint(0, 255)))

        self.image_main = QtWidgets.QLabel()
        self.image_main.setObjectName('mainPic')
        self.image_main.setFixedSize(512, 512)
        pixmap_main = QtGui.QPixmap()
        self.image_main.setPixmap(pixmap_main)
        self.image_main.adjustSize()

        self.slider_all_layers = QtWidgets.QSlider()
        self.slider_all_layers.setOrientation(QtCore.Qt.Horizontal)
        self.slider_all_layers.setMinimum(0)
        self.slider_all_layers.setMaximum(100)
        self.slider_all_layers.setFixedWidth(500)

        button_json = QtWidgets.QPushButton("Create JSON")
        button_json.setFixedWidth(200)

        first_panel_left = QtWidgets.QVBoxLayout()
        first_panel_left.setAlignment(Qt.AlignTop)
        #first_panel_left.addWidget(button_json)

        first_panel_frame_left = QtWidgets.QFrame()
        first_panel_frame_left.setMinimumWidth(200)
        first_panel_frame_left.setLayout(first_panel_left)

        first_panel_right = QtWidgets.QVBoxLayout()
        first_panel_right.addWidget(self.image_main)
        first_panel_right.addWidget(self.slider_all_layers)
        first_panel_right.addStretch()

        first_panel_frame_right = QtWidgets.QFrame()
        first_panel_frame_right.setLayout(first_panel_right)

        main_first_box = QtWidgets.QHBoxLayout()
        main_first_box.addWidget(first_panel_frame_left)
        main_first_box.addWidget(first_panel_frame_right)

        first_container = QtWidgets.QWidget()
        first_container.setLayout(main_first_box)

        self.stackedWidget.addWidget(first_container)
        self.stackedWidget.addWidget(label2)
        self.stackedWidget.addWidget(label3)
        self.stackedWidget.addWidget(label4)
        Form.setLayout(self.layout)

我将一个单独的 qss 文件连接到 Pyside

 if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = App()
    File = QtCore.QFile("styles/styles.qss")
    qss = QtCore.QTextStream(File)
    app.setStyleSheet(qss.readAll())
    window.show()
    sys.exit(app.exec_())

qss内容

 QListWidget, QListView, QTreeWidget, QTreeView {
outline: 0px;
}
QListWidget {
    min-width: 120px;
    max-width: 120px;
    color: white;
    background: black;
}
QListWidget::item:selected {
    background: rgb(52, 52, 52);
    border-left: 2px solid rgb(9, 187, 7);
}
HistoryPanel::item:hover {background: rgb(52, 52, 52);}
QStackedWidget {background: rgb(30, 30, 30);}
QLabel {color: white;}

我收到一个错误

QIODevice::read (QFile, "styles/styles.qss"): device not open

文件就位，一切正常。我不明白怎么了