我对编程比较陌生，我是自学的。我正在尝试创建一个用于对照片进行排序的程序（使用用户选择的键将照片移动到预初始化的文件夹中）。 我的主要问题是，当用户按下按键渲染下一张照片（查看它）时，垃圾收集器不会从内存中释放上一张照片（即使我试图销毁）。 我不知道垃圾收集器是否不从内存中释放照片，或者是否不释放其他一些不再需要的对象（或任何依赖项）。 字符串是用捷克语写的
如有任何答复，我将不胜感激。
我的代码：
import customtkinter as custk
from tkinter import filedialog
from PIL import Image, ImageTk
import os
import shutil
import threading
import gc
mainWindow = custk.CTk()
custk.set_appearance_mode("dark")
custk.set_default_color_theme("dark-blue")
mainWindow.geometry('1200x800')
mainWindow.title('PhotoSorter 1.0')
mainFrame = custk.CTkScrollableFrame(mainWindow, width=930, height=770)
mainFrame.place(x=1190, y=10, anchor='ne')
def sourceFolderButton_event():
global sourceFolderPathsList
global sourceFolderPath
try:
sourceFolderPath = filedialog.askdirectory()
valid_extensions = [".png", ".jpg"]
files = os.listdir(sourceFolderPath)
sourceFolderPathsList = [file for file in files if os.path.splitext(file)[1].lower() in valid_extensions]
except: passe
sourceFolderButton_Image = ImageTk.PhotoImage(image=Image.open('mainFiles\\icons\\folder_icon.png').resize((40,40)))
sourceFolderButton = custk.CTkButton(mainWindow, width=225, image=sourceFolderButton_Image, fg_color='#101010', hover_color='#121212', border_width=0, text='hlavní složka', font=('Arial', 15), command=sourceFolderButton_event)
sourceFolderButton.place(x=7, y=745)
checkY = 0
forImgNameCounter = 0
actualIndexOfPath = -1
bindProfile_list = []
img_obj = 0
def rightWayImage(event):
global img_obj
if img_obj != 0:
img_obj.imageLabel.destroy()
# img_obj.image.close()
del img_obj
gc.collect()
global actualIndexOfPath
if actualIndexOfPath < len(sourceFolderPathsList)-1:
actualIndexOfPath += 1
img_obj = soImage(f'{sourceFolderPath}/{sourceFolderPathsList[actualIndexOfPath]}')
def leftWayImage(event):
global img_obj
if img_obj != 0:
img_obj.imageLabel.destroy()
# img_obj.image.close()
del img_obj.cu_image
del img_obj
gc.collect()
global actualIndexOfPath
if actualIndexOfPath < len(sourceFolderPathsList)-1:
actualIndexOfPath -= 1
img_obj = soImage(f'{sourceFolderPath}/{sourceFolderPathsList[actualIndexOfPath]}')
mainWindow.bind('<Right>', rightWayImage)
mainWindow.bind('<Left>', leftWayImage)
class soImage():
def __init__(self, image_path):
self.image_path = image_path
self.checkRotate = 0
self.angle = 0
self.imageLabel = custk.CTkLabel(mainFrame, text='')
self.imageLabel.pack()
self.load_image()
mainWindow.bind(",", self.rotate_left) # Bind klávesy pro rotaci doleva
mainWindow.bind(".", self.rotate_right) # Bind klávesy pro rotaci doprava
def load_image(self):
self.image = Image.open(fp=self.image_path)
self.getSizeHeight()
self.cu_image = custk.CTkImage(dark_image=self.image, size=(self.width, self.height))
self.imageLabel.configure(image=self.cu_image)
def getSizeHeight(self):
width, height = self.image.size
if width > height:
if self.checkRotate == 1:
tmp = width
width = height
height = tmp
width = width*(770/height)
height = height*(770/height)
else:
height = height*(920/width)
width = width*(920/width)
elif height > width:
width = width*(770/height)
height = height*(770/height)
self.width = width
self.height = height
self.checkRotate = 0
def rotate_left(self, event):
self.angle = 90
self.rotateImg()
def rotate_right(self, event):
self.angle = -90
self.rotateImg()
def rotateImg(self):
self.checkRotate = 1
self.getSizeHeight()
self.image = self.image.rotate(self.angle, expand=True)
self.cu_image.configure(dark_image=self.image, size=(self.width, self.height))
class plusFunc():
def __init__(self, keyBind):
self.button = custk.CTkButton(mainWindow, width=220, height=27, corner_radius=4, text=keyBind, fg_color='transparent', bg_color='transparent', text_color='#580FF0', border_width=2, border_color='#580FF0', hover=False)
if checkY == 1:
self.button.place(x=7, y=50)
else:
self.button.place(x=7, y=20+30*checkY)
self.keyBind = keyBind
self.location = ''
mainWindow.bind(self.keyBind, self.keyBind_event)
def keyBind_event(self, event):
global forImgNameCounter
def keyBind_eventTHREADdef():
if self.location == '':
self.location = filedialog.askdirectory()
else:
shutil.copyfile(f'{sourceFolderPath}/{sourceFolderPathsList[actualIndexOfPath]}', f'{self.location}/{sourceFolderPathsList[actualIndexOfPath][:-3]}_{forImgNameCounter}.{sourceFolderPathsList[actualIndexOfPath][-3:]}')
sourceFolderPathsList.remove(sourceFolderPathsList[actualIndexOfPath])
forImgNameCounter += 1
t1 = threading.Thread(target=keyBind_eventTHREADdef)
t1.start()
def make_bindProfile(key=None):
if bindProfile_list[0] :
bindProfile_list.append(key)
def plusFuncButton_event():
toplevelMessage = custk.CTkToplevel(mainWindow)
toplevelMessage.geometry('350x100')
toplevelMessage.title('WindowForBind')
toplevelMessage.attributes('-topmost', 1)
toplevelMessage.focus_force()
label = custk.CTkLabel(toplevelMessage, text='Stiskněte libovolnou klávesu pro přiřazení k "bindu"')
label.pack(anchor='center')
def key_press(event):
key = event.keysym
toplevelMessage.destroy()
global checkY
checkY += 1
plusFunc(key)
toplevelMessage.bind('<Key>', key_press)
plusFuncButton = custk.CTkButton(mainWindow, width=223, height=30, corner_radius=13, border_width=0, text='přidat bind', text_color='black', font=('Arial', 20), fg_color='#6e2ff2', hover_color='#5F18F1', command= plusFuncButton_event)
plusFuncButton.place(x=7, y=10)
def auto_make(keyBind):
pass
mainWindow.mainloop()
我试图找到一些Python的实时内存跟踪器，但我想我搜索得不够。
soubory zde。
我相信问题在于您在手动调用 gc.collect() 之前没有禁用自动垃圾收集。
我最近遇到了同样的问题，我刚刚补充说：
gc.disable()
gc.collect()
gc.enable()
根据此来源，在手动调用之前必须禁用自动垃圾收集:)。
内存快速塞满所有 img 数据的一个原因是，自动垃圾收集器在识别已经丢失代码中变量引用的对象之间的循环引用时面临困难。
例如：
x = tk.Frame()
y = tk.Button(master=x)
x.destroy() # for tkinter x is dead, but because of connection with y it's still alive in the memory.