python 3 (Qt) [Errno 13] 权限被拒绝。如何获取文件夹路径？
python 3 (Qt) [Errno 13] Permission denied. How to get folders path?
我正在构建小型桌面应用程序。我只需要获取文件夹路径并将其放入 textEdit 小部件中。从那里我需要 运行 一些 "scan" 功能通过位于该文件夹路径中的所有文件。但我得到的只是这个错误：
PermissionError: [Errno 13] Permission denied: 'C:/Users/dava8001/AppData/Local/Programs/Python/Python36-32/test-scan1/images'.
有什么建议吗？
这是我的代码：
from PyQt5 import QtGui
from PyQt5.QtWidgets import QApplication, QMainWindow, QFileDialog, QPushButton, QTextEdit, QLineEdit, QToolTip, QMessageBox, QProgressBar, QWidget
from PyQt5.QtCore import QCoreApplication, QBasicTimer
import sys
import os
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.title = "Barcode Scanner"
self.top = 100
self.left = 100
self.width = 680
self.height = 500
self.InitWindow()
def InitWindow(self):
self.button = QPushButton("Choose Folder Path", self)
self.button.move(100, 150)
self.button.resize(150, 50)
self.button.clicked.connect(self.getFolder)
self.btnScan = QPushButton("Scan", self)
self.btnScan.move(450, 150)
self.btnScan.resize(150, 50)
self.btnScan.clicked.connect(self.scan)
self.btnClose = QPushButton("Close", self)
self.btnClose.move(450, 400)
self.btnClose.resize(150, 50)
self.btnClose.clicked.connect(self.CloseApp)
self.textEdit = QTextEdit(self)
self.textEdit.move(100, 200)
self.textEdit.resize(500, 30)
self.pbar = QProgressBar(self)
self.pbar.setGeometry(100, 350, 532, 25)
self.setWindowIcon(QtGui.QIcon("barcode.png"))
self.setWindowTitle(self.title)
self.setGeometry(self.top,self.left, self.width, self.height)
self.show()
def scan(self):
self.completed = 0
while self.completed < 100:
self.completed += 0.0001
self.pbar.setValue(self.completed)
def getFolder(self):
"""ddir = QFileDialog.getExistingDirectory(self, "Open Directory",
"C:/Users/dava8001/Desktop/", QFileDialog.ShowDirsOnly |
QFileDialog.DontResolveSymlinks)
ddir = self.textEdit.toPlainText()
if ddir:
f = open(ddir, 'r')
with f:
data = f.read()
self.textEdit.toPlainText(data)
else:
pass
self.textEdit(self.getFolder)"""
name = QFileDialog.getExistingDirectory(self, "Open Directory", "C:/Users/dava8001/Desktop/", QFileDialog.ShowDirsOnly | QFileDialog.DontResolveSymlinks)
file = open(name, 'r')
self.editor()
with file:
text = file.read()
self.textEdit.setText(text)
def CloseApp(self):
reply = QMessageBox.question(self, "Close Message", "Are you sure you
want to close?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
if reply == QMessageBox.Yes:
self.close()
app = QApplication(sys.argv)
window = Window()
sys.exit(app.exec())
您的程序可能如下所示：
import sys
import os
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import (QApplication, QMainWindow, QFileDialog,
QPushButton, QTextEdit, QLineEdit, QToolTip,
QMessageBox, QProgressBar, QWidget,
QHBoxLayout, QVBoxLayout)
from PyQt5.QtCore import QCoreApplication, QBasicTimer, QThread, pyqtSignal
class AThread(QThread):
# Use the signals to send the information.
updateSignal = pyqtSignal(list, int)
def __init__(self, folder, allFiles):
super().__init__()
self.folder = folder
self.cons = 1 if allFiles<100 else allFiles//100+1
self.indPbar = 1
self.ind = 0
self.files = []
def run(self):
for root, dirs, files in os.walk(self.folder):
self.updateSignal.emit(["\n{}:".format(root),], self.indPbar)
for file in files:
if self.cons == 1:
self.indPbar += 1
self.updateSignal.emit([file,], self.indPbar)
else:
self.files.append("{}".format(file))
self.ind += 1
if self.ind >= 100:
self.indPbar += 1
self.updateSignal.emit(self.files, self.indPbar)
self.ind = 0
self.cons -= 1
self.files = []
QThread.msleep(1)
self.updateSignal.emit(self.files, self.indPbar)
self.files = []
self.updateSignal.emit(self.files, 100)
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowIcon(QIcon("E:/_Qt/img/qt-logo.png")) # "barcode.png"
self.setWindowTitle("Barcode Scanner")
self.resize(500, 400)
self.allFiles = 0
self.InitWindow()
def InitWindow(self):
self.button = QPushButton("Choose Folder Path")
self.button.clicked.connect(self.getFolder)
self.lineEdit = QLineEdit("E:/_Qt/Python-Examples/_PyQt5") # "C:/Users/dava8001/Desktop"
self.lineEdit.setReadOnly(True)
self.btnScan = QPushButton("Scan")
self.btnScan.clicked.connect(
lambda folder=self.lineEdit.text(): self.scan(self.lineEdit.text()))
self.btnScan.setEnabled(False)
self.btnClose = QPushButton("Close")
self.btnClose.clicked.connect(self.CloseApp)
self.textEdit = QTextEdit(self)
self.pbar = QProgressBar(self)
centralWidget = QWidget()
self.setCentralWidget(centralWidget)
layoutH = QHBoxLayout()
layoutH.addWidget(self.button)
layoutH.addStretch(1)
layoutH.addWidget(self.btnScan)
layoutV = QVBoxLayout(centralWidget)
layoutV.addLayout(layoutH)
layoutV.addWidget(self.lineEdit)
layoutV.addWidget(self.textEdit)
layoutV.addWidget(self.pbar)
layoutV.addWidget(self.btnClose)
def scan(self, folder):
self.btnScan.setEnabled(False)
self.thread = AThread(folder, self.allFiles)
self.thread.finished.connect(self.closeW)
self.thread.start()
self.thread.updateSignal.connect(self.update)
def update(self, texts, val):
text = "\n".join(texts)
self.textEdit.append(text)
self.pbar.setValue(val)
def closeW(self):
self.textEdit.append("--- Directory scan complete! ---")
self.btnScan.setEnabled(True)
def getFolder(self):
options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly
folder = QFileDialog.getExistingDirectory(self,
"Open Folder",
self.lineEdit.text(),
options=options)
if folder:
self.pbar.setValue(0)
self.lineEdit.setText(folder)
self.textEdit.append("\n{}:".format(folder))
self.allFiles = 0
for root, dirs, files in os.walk(folder):
self.allFiles += len(files)
self.textEdit.append(" total files: {}".format(self.allFiles))
self.btnScan.setEnabled(True)
else:
self.textEdit.append("Sorry, choose a directory to scan!")
self.btnScan.setEnabled(False)
def CloseApp(self):
reply = QMessageBox.question(self, "Close Message",
"Are you sure you want to close?",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if reply == QMessageBox.Yes:
self.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setStyle('Fusion')
window = Window()
window.show()
sys.exit(app.exec())
我正在构建小型桌面应用程序。我只需要获取文件夹路径并将其放入 textEdit 小部件中。从那里我需要 运行 一些 "scan" 功能通过位于该文件夹路径中的所有文件。但我得到的只是这个错误：
PermissionError: [Errno 13] Permission denied: 'C:/Users/dava8001/AppData/Local/Programs/Python/Python36-32/test-scan1/images'.
有什么建议吗？
这是我的代码：
from PyQt5 import QtGui
from PyQt5.QtWidgets import QApplication, QMainWindow, QFileDialog, QPushButton, QTextEdit, QLineEdit, QToolTip, QMessageBox, QProgressBar, QWidget
from PyQt5.QtCore import QCoreApplication, QBasicTimer
import sys
import os
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.title = "Barcode Scanner"
self.top = 100
self.left = 100
self.width = 680
self.height = 500
self.InitWindow()
def InitWindow(self):
self.button = QPushButton("Choose Folder Path", self)
self.button.move(100, 150)
self.button.resize(150, 50)
self.button.clicked.connect(self.getFolder)
self.btnScan = QPushButton("Scan", self)
self.btnScan.move(450, 150)
self.btnScan.resize(150, 50)
self.btnScan.clicked.connect(self.scan)
self.btnClose = QPushButton("Close", self)
self.btnClose.move(450, 400)
self.btnClose.resize(150, 50)
self.btnClose.clicked.connect(self.CloseApp)
self.textEdit = QTextEdit(self)
self.textEdit.move(100, 200)
self.textEdit.resize(500, 30)
self.pbar = QProgressBar(self)
self.pbar.setGeometry(100, 350, 532, 25)
self.setWindowIcon(QtGui.QIcon("barcode.png"))
self.setWindowTitle(self.title)
self.setGeometry(self.top,self.left, self.width, self.height)
self.show()
def scan(self):
self.completed = 0
while self.completed < 100:
self.completed += 0.0001
self.pbar.setValue(self.completed)
def getFolder(self):
"""ddir = QFileDialog.getExistingDirectory(self, "Open Directory",
"C:/Users/dava8001/Desktop/", QFileDialog.ShowDirsOnly |
QFileDialog.DontResolveSymlinks)
ddir = self.textEdit.toPlainText()
if ddir:
f = open(ddir, 'r')
with f:
data = f.read()
self.textEdit.toPlainText(data)
else:
pass
self.textEdit(self.getFolder)"""
name = QFileDialog.getExistingDirectory(self, "Open Directory", "C:/Users/dava8001/Desktop/", QFileDialog.ShowDirsOnly | QFileDialog.DontResolveSymlinks)
file = open(name, 'r')
self.editor()
with file:
text = file.read()
self.textEdit.setText(text)
def CloseApp(self):
reply = QMessageBox.question(self, "Close Message", "Are you sure you
want to close?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
if reply == QMessageBox.Yes:
self.close()
app = QApplication(sys.argv)
window = Window()
sys.exit(app.exec())
您的程序可能如下所示：
import sys
import os
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import (QApplication, QMainWindow, QFileDialog,
QPushButton, QTextEdit, QLineEdit, QToolTip,
QMessageBox, QProgressBar, QWidget,
QHBoxLayout, QVBoxLayout)
from PyQt5.QtCore import QCoreApplication, QBasicTimer, QThread, pyqtSignal
class AThread(QThread):
# Use the signals to send the information.
updateSignal = pyqtSignal(list, int)
def __init__(self, folder, allFiles):
super().__init__()
self.folder = folder
self.cons = 1 if allFiles<100 else allFiles//100+1
self.indPbar = 1
self.ind = 0
self.files = []
def run(self):
for root, dirs, files in os.walk(self.folder):
self.updateSignal.emit(["\n{}:".format(root),], self.indPbar)
for file in files:
if self.cons == 1:
self.indPbar += 1
self.updateSignal.emit([file,], self.indPbar)
else:
self.files.append("{}".format(file))
self.ind += 1
if self.ind >= 100:
self.indPbar += 1
self.updateSignal.emit(self.files, self.indPbar)
self.ind = 0
self.cons -= 1
self.files = []
QThread.msleep(1)
self.updateSignal.emit(self.files, self.indPbar)
self.files = []
self.updateSignal.emit(self.files, 100)
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowIcon(QIcon("E:/_Qt/img/qt-logo.png")) # "barcode.png"
self.setWindowTitle("Barcode Scanner")
self.resize(500, 400)
self.allFiles = 0
self.InitWindow()
def InitWindow(self):
self.button = QPushButton("Choose Folder Path")
self.button.clicked.connect(self.getFolder)
self.lineEdit = QLineEdit("E:/_Qt/Python-Examples/_PyQt5") # "C:/Users/dava8001/Desktop"
self.lineEdit.setReadOnly(True)
self.btnScan = QPushButton("Scan")
self.btnScan.clicked.connect(
lambda folder=self.lineEdit.text(): self.scan(self.lineEdit.text()))
self.btnScan.setEnabled(False)
self.btnClose = QPushButton("Close")
self.btnClose.clicked.connect(self.CloseApp)
self.textEdit = QTextEdit(self)
self.pbar = QProgressBar(self)
centralWidget = QWidget()
self.setCentralWidget(centralWidget)
layoutH = QHBoxLayout()
layoutH.addWidget(self.button)
layoutH.addStretch(1)
layoutH.addWidget(self.btnScan)
layoutV = QVBoxLayout(centralWidget)
layoutV.addLayout(layoutH)
layoutV.addWidget(self.lineEdit)
layoutV.addWidget(self.textEdit)
layoutV.addWidget(self.pbar)
layoutV.addWidget(self.btnClose)
def scan(self, folder):
self.btnScan.setEnabled(False)
self.thread = AThread(folder, self.allFiles)
self.thread.finished.connect(self.closeW)
self.thread.start()
self.thread.updateSignal.connect(self.update)
def update(self, texts, val):
text = "\n".join(texts)
self.textEdit.append(text)
self.pbar.setValue(val)
def closeW(self):
self.textEdit.append("--- Directory scan complete! ---")
self.btnScan.setEnabled(True)
def getFolder(self):
options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly
folder = QFileDialog.getExistingDirectory(self,
"Open Folder",
self.lineEdit.text(),
options=options)
if folder:
self.pbar.setValue(0)
self.lineEdit.setText(folder)
self.textEdit.append("\n{}:".format(folder))
self.allFiles = 0
for root, dirs, files in os.walk(folder):
self.allFiles += len(files)
self.textEdit.append(" total files: {}".format(self.allFiles))
self.btnScan.setEnabled(True)
else:
self.textEdit.append("Sorry, choose a directory to scan!")
self.btnScan.setEnabled(False)
def CloseApp(self):
reply = QMessageBox.question(self, "Close Message",
"Are you sure you want to close?",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if reply == QMessageBox.Yes:
self.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setStyle('Fusion')
window = Window()
window.show()
sys.exit(app.exec())