self.save_folder_name = r'./img_processed' os.startfile(self.save_folder_name)为什么会出错
时间: 2023-11-22 10:54:45 浏览: 123
`os.startfile()`函数是用于打开文件或程序的,不能用于打开文件夹。如果你想打开文件夹,可以使用`os.system()`函数或`subprocess.Popen()`函数,例如:
```python
import os
import subprocess
# 使用 os.system() 函数
os.system('explorer.exe {}'.format(self.save_folder_name))
# 使用 subprocess.Popen() 函数
subprocess.Popen('explorer.exe {}'.format(self.save_folder_name))
```
这两种方式都可以打开指定的文件夹。不过值得注意的是,使用`os.system()`和`subprocess.Popen()`函数打开文件夹时,会弹出一个新的文件夹窗口。如果你希望在程序中直接打开文件夹,可以使用Python自带的GUI库,例如`tkinter`或`PyQt`。
相关问题
def init_datasets(self): """ Init self.dataset_train, self.dataset_train_iter, self.dataset_val. """ dataset_parameters = dict(base_folder=self.local_base_folder, image_size=self.image_size, image_spacing=self.image_spacing, normalize_zero_mean_unit_variance=False, cv=self.cv, heatmap_sigma=3.0, generate_spine_heatmap=True, use_variable_image_size=True, valid_output_sizes_x=[32, 64, 96, 128], valid_output_sizes_y=[32, 64, 96, 128], valid_output_sizes_z=[32, 64, 96, 128], output_image_type=np.float16 if self.use_mixed_precision else np.float32, data_format=self.data_format, save_debug_images=self.save_debug_images)
这个方法名为`init_datasets`,用于初始化`self.dataset_train`、`self.dataset_train_iter`和`self.dataset_val`。
在方法内部,通过一个参数字典`dataset_parameters`来设置数据集的相关参数。这些参数包括:
- `base_folder`:基础文件夹路径,指定了数据集的存储位置。
- `image_size`:图像尺寸,表示图像的高度、宽度和深度。
- `image_spacing`:图像间距,指定了图像在三个轴向上的间距。
- `normalize_zero_mean_unit_variance`:是否对图像进行零均值单位方差归一化。
- `cv`:交叉验证的索引。
- `heatmap_sigma`:热图的标准差。
- `generate_spine_heatmap`:是否生成脊柱热图。
- `use_variable_image_size`:是否使用可变大小的图像。
- `valid_output_sizes_x`、`valid_output_sizes_y`、`valid_output_sizes_z`:有效的输出大小,用于指定模型输出的大小范围。
- `output_image_type`:输出图像的数据类型,根据`self.use_mixed_precision`来选择是`np.float16`还是`np.float32`。
- `data_format`:数据格式,指定了图像和张量的轴向顺序。
- `save_debug_images`:是否保存调试图像。
通过设置这些参数,可以初始化与训练过程相关的数据集对象,用于加载和处理训练和验证数据。具体的数据集对象和数据处理逻辑可能需要根据具体的代码实现来确定。
import os from PyQt5.QtCore import Qt from PyQt5.QtGui import QPixmap, QIcon from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QHBoxLayout, QTreeView, QFileSystemModel class ImageViewer(QWidget): def init(self, folder_path): super().init() self.folder_path = folder_path self.image_dict = {} self.current_image = None self.setWindowTitle("Image Viewer") self.setFixedSize(1000, 600) self.image_label = QLabel(self) self.image_label.setAlignment(Qt.AlignCenter) self.tree_view = QTreeView() self.tree_view.setMinimumWidth(250) self.tree_view.setMaximumWidth(250) self.model = QFileSystemModel() self.model.setRootPath(folder_path) self.tree_view.setModel(self.model) self.tree_view.setRootIndex(self.model.index(folder_path)) self.tree_view.setHeaderHidden(True) self.tree_view.setColumnHidden(1, True) self.tree_view.setColumnHidden(2, True) self.tree_view.setColumnHidden(3, True) self.tree_view.doubleClicked.connect(self.tree_item_double_clicked) self.main_layout = QHBoxLayout(self) self.main_layout.addWidget(self.tree_view) self.main_layout.addWidget(self.image_label) self.load_images() self.update_image() def load_images(self): for file_name in os.listdir(self.folder_path): if file_name.lower().endswith((".jpg", ".jpeg", ".png", ".gif", ".bmp")): file_path = os.path.join(self.folder_path, file_name) self.image_dict[file_name] = file_path current_image = list(self.image_dict.keys())[0] def update_image(self): if self.current_image is not None: pixmap = QPixmap(self.image_dict[self.current_image]) self.image_label.setPixmap(pixmap.scaled(self.width() - self.tree_view.width(), self.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation)) def tree_item_double_clicked(self, index): file_name = self.model.fileName(index) if file_name in self.image_dict: self.current_image = file_name self.update_image() def keyPressEvent(self, event): if event.key() == Qt.Key_A: self.previous_image() elif event.key() == Qt.Key_D: self.next_image() elif event.key() in [Qt.Key_1, Qt.Key_2, Qt.Key_3, Qt.Key_4, Qt.Key_5]: self.save_text_file(event.key() - Qt.Key_0) def previous_image(self): if self.current_image is not None: file_names = list(self.image_dict.keys()) current_index = file_names.index(self.current_image) if current_index > 0: self.current_image = file_names[current_index - 1] else: self.current_image = file_names[-1] self.update_image() def next_image(self): if self.current_image is not None: file_names = list(self.image_dict.keys()) current_index = file_names.index(self.current_image) if current_index < len(file_names) - 1: self.current_image = file_names[current_index + 1] else: self.current_image = file_names[0] self.update_image() def save_text_file(self, number): if self.current_image is not None: file_name = self.current_image txt_file_path = os.path.join(self.folder_path, os.path.splitext(file_name)[0] + ".txt") with open(txt_file_path, "w") as file: file.write(str(number)) if name == "main": import sys app = QApplication(sys.argv) viewer = ImageViewer("D:/图片/wallpaper") viewer.show() sys.exit(app.exec_())这份代码实现不了使用键盘的A键向上翻页以及D键向下翻页,也实现不了键盘数字键生成相应txt文档,帮我分析一下错在哪里
这份代码在实现键盘事件的时候,使用了错误的函数名称。应该使用`keyPressEvent`而不是`key_press_event`函数。另外,在`save_text_file`函数中,应该先判断当前图片是否为`None`,再执行后续的代码。以下是修改后的代码:
```
import os
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QIcon
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QHBoxLayout, QTreeView, QFileSystemModel
class ImageViewer(QWidget):
def __init__(self, folder_path):
super().__init__()
self.folder_path = folder_path
self.image_dict = {}
self.current_image = None
self.setWindowTitle("Image Viewer")
self.setFixedSize(1000, 600)
self.image_label = QLabel(self)
self.image_label.setAlignment(Qt.AlignCenter)
self.tree_view = QTreeView()
self.tree_view.setMinimumWidth(250)
self.tree_view.setMaximumWidth(250)
self.model = QFileSystemModel()
self.model.setRootPath(folder_path)
self.tree_view.setModel(self.model)
self.tree_view.setRootIndex(self.model.index(folder_path))
self.tree_view.setHeaderHidden(True)
self.tree_view.setColumnHidden(1, True)
self.tree_view.setColumnHidden(2, True)
self.tree_view.setColumnHidden(3, True)
self.tree_view.doubleClicked.connect(self.tree_item_double_clicked)
self.main_layout = QHBoxLayout(self)
self.main_layout.addWidget(self.tree_view)
self.main_layout.addWidget(self.image_label)
self.load_images()
self.update_image()
def load_images(self):
for file_name in os.listdir(self.folder_path):
if file_name.lower().endswith((".jpg", ".jpeg", ".png", ".gif", ".bmp")):
file_path = os.path.join(self.folder_path, file_name)
self.image_dict[file_name] = file_path
self.current_image = list(self.image_dict.keys())[0]
def update_image(self):
if self.current_image is not None:
pixmap = QPixmap(self.image_dict[self.current_image])
self.image_label.setPixmap(pixmap.scaled(self.width() - self.tree_view.width(), self.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
def tree_item_double_clicked(self, index):
file_name = self.model.fileName(index)
if file_name in self.image_dict:
self.current_image = file_name
self.update_image()
def keyPressEvent(self, event):
if event.key() == Qt.Key_A:
self.previous_image()
elif event.key() == Qt.Key_D:
self.next_image()
elif event.key() in [Qt.Key_1, Qt.Key_2, Qt.Key_3, Qt.Key_4, Qt.Key_5]:
self.save_text_file(event.key() - Qt.Key_0)
def previous_image(self):
if self.current_image is not None:
file_names = list(self.image_dict.keys())
current_index = file_names.index(self.current_image)
if current_index > 0:
self.current_image = file_names[current_index - 1]
else:
self.current_image = file_names[-1]
self.update_image()
def next_image(self):
if self.current_image is not None:
file_names = list(self.image_dict.keys())
current_index = file_names.index(self.current_image)
if current_index < len(file_names) - 1:
self.current_image = file_names[current_index + 1]
else:
self.current_image = file_names[0]
self.update_image()
def save_text_file(self, number):
if self.current_image is not None:
file_name = self.current_image
txt_file_path = os.path.join(self.folder_path, os.path.splitext(file_name)[0] + ".txt")
with open(txt_file_path, "w") as file:
file.write(str(number))
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
viewer = ImageViewer("D:/图片/wallpaper")
viewer.show()
sys.exit(app.exec_())
```
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