#создай тут фоторедактор Easy Editor!
from PyQt5.QtWidgets import(
    QApplication,QWidget,
    QLabel,QPushButton,QListWidget,
    QHBoxLayout,QVBoxLayout,QFileDialog
)
import os
from PIL import Image
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap

app = QApplication([])
win = QWidget()
win.setWindowTitle('Редактор картинок')
lb_image = QLabel('Картинка')
btn_dir = QPushButton('Папка')
lw_files = QListWidget()

btn_left = QPushButton('Лево')
btn_right = QPushButton('Право')
btn_flip = QPushButton('Зеркало')
btn_sharp = QPushButton('Резкость')
btn_bw = QPushButton('Ч/Б')

row = QHBoxLayout()
col1 = QVBoxLayout()
col2 = QVBoxLayout()
col1.addWidget(btn_dir)
col1.addWidget(lw_files)
col2.addWidget(lb_image,95)
row_tools = QHBoxLayout()
row_tools.addWidget(btn_left)
row_tools.addWidget(btn_right)
row_tools.addWidget(btn_flip)
row_tools.addWidget(btn_sharp)
row_tools.addWidget(btn_bw)
col2.addLayout(row_tools)
row.addLayout(col1,20)
row.addLayout(col2,80)
win.setLayout(row)

win.show()

workdir = ''
def chooseWorkdir():
    global workdir
    workdir = QFileDialog.getExistingDirectory()

def showFilenameList():
    extensions = ['.jpg','.jpeg','.png','.gif','.bmp']
    chooseWorkdir()
    filenames = filter(os.listdir(workdir),extensions)
    lw_files.clear()
    for filename in filenames:
        lw_files.addItem(filename)

def filter(files, extensions):
    result = []
    for filename in files:
        for ext in extensions:
            if filename.endswith(ext):
                result.append(filename)
    return result
       
btn_dir.clicked.connect(showFilenameList)
class ImageProcessor():
    def __init__(self):
        self.image = None
        self.dir = None
        self.filename = None
        self.save_dir = 'Modified/'

    def do_bw(self):
        self.image = self.image.convert('L')
        self.saveImage()
        image_path = os.path.join(self.dir,self.save_dir,self.filename)
        self.showImage(image_path)
    
    def saveImage(self):
        path = os.path.join(self.dir,self.save_dir)
        if not(os.path.exists(path) or os.path.isdir(path)):
            os.mkdir(path)
        image_path = os.path.join(path,self.filename)
        self.image.save(image_path)

    def loadImage(self, dir, filename):
        self.dir = dir
        self.filename = filename
        image_path = os.path.join(dir,filename)
        self.image = Image.open(image_path)

    def showImage(self,path):
        lb_image.hide()
        pixmapimage =QPixmap(path)
        w,h = lb_image.width(),lb_image.height()
        pixmapimage = pixmapimage.scaled(w,h,Qt.KeepAspectRatio)
        lb_image.setPixmap(pixmapimage)
        lb_image.show()

workimage = ImageProcessor()
def showChosenImage():
    if lw_files.currentRow() >= 0:
        filename = lw_files.currentItem().text()
        workimage.loadImage(workdir,filename)
        image_path = os.path.join(workimage.dir,workimage.filename)
        workimage.showImage(image_path)

lw_files.currentRowChanged.connect(showChosenImage)
btn_bw.clicked.connect(workimage.do_bw)
app.exec()