在使用PyQT5创建脚本时，Python返回FileNotFoundError关于正在定义的函数

Question

我使用PyQT设计器创建了一个ui，并将其转换为.py文件，然后粘贴以前作为命令行脚本编写的代码，该脚本将.mp3文件（地址写入lineEdit）拆分为块（从spinBox读取的块数）。当尝试运行代码时，我得到FileNotFoundError，它涉及def函数中的代码行。它不应该只在按下按钮时运行吗？我确信在按下按钮之前不应该执行代码，因此在UI显示和按下按钮之前不应该出现错误代码。你知道吗

错误代码：

Traceback (most recent call last):
File "C:/Users/Kacper/Desktop/Apki/AtomSplitter/untitled1.py", line 95, in <module>
ui.setupUi(MainWindow)
File "C:/Users/Kacper/Desktop/Apki/AtomSplitter/untitled1.py", line 66, in setupUi
self.pushButton.clicked.connect(atomsplitter(self, self.lineEdit.text(), self.spinBox.value()))
File "C:/Users/Kacper/Desktop/Apki/AtomSplitter/untitled1.py", line 18, in atomsplitter
Zawartosc = open(AdresPliku, 'rb')
FileNotFoundError: [Errno 2] No such file or directory: ''

源代码：

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.8
#
# WARNING! All changes made in this file will be lost!
import binascii, os
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(516, 191)

        def atomsplitter(self, AdresPliku, Czesci):
            NazwaPliku = os.path.basename(AdresPliku)
            Zawartosc = open(AdresPliku, 'rb')
            Zawartosc = Zawartosc.read()
            Zawartosc = (binascii.hexlify(Zawartosc))
            PoczatekIndeks = Zawartosc.find(b"fffb")
            PoczatekIndeks = PoczatekIndeks
            Poczatek = Zawartosc[0:PoczatekIndeks]
            Koniec = Zawartosc[len(Zawartosc) - 256:]
            Klatki = Zawartosc[PoczatekIndeks:len(Zawartosc) - 256]
            Czesci = int(Czesci)
            Dlugosc = int(len(Klatki) / Czesci)
            Czesc = [0]
            Indeks = [0]
            for x in range(1, Czesci + 1):
                Indeks.append(Zawartosc.find(b"fffb", Dlugosc * x))
                Czesc.append(Klatki[Indeks[x - 1]:Indeks[x]])
                strin = Czesc[x]
                print(strin[len(strin) - 20:])
                # if x == Czesci + 1:
                #    Czesc[x] = (Klatki[Indeks[x - 1]:])
                # print("Czesc" + str(x) + " " + str(len(Czesc[x])))
                CzescZawartosc = Poczatek + Czesc[x] + Koniec
                CzescZawartosc = binascii.unhexlify(CzescZawartosc)
                CzescPlik = open(NazwaPliku[:len(NazwaPliku) - 4] + str(x) + NazwaPliku[len(NazwaPliku) - 4:], "wb")
                CzescPlik.write(CzescZawartosc)
                CzescPlik.close()
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser.setGeometry(QtCore.QRect(20, 60, 71, 31))
        self.textBrowser.setFocusPolicy(QtCore.Qt.NoFocus)
        self.textBrowser.setObjectName("textBrowser")
        self.textBrowser_2 = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser_2.setGeometry(QtCore.QRect(20, 100, 91, 31))
        self.textBrowser_2.setFocusPolicy(QtCore.Qt.NoFocus)
        self.textBrowser_2.setObjectName("textBrowser_2")
        self.spinBox = QtWidgets.QSpinBox(self.centralwidget)
        self.spinBox.setGeometry(QtCore.QRect(130, 100, 61, 31))
        self.spinBox.setProperty("value", 2)
        self.spinBox.setObjectName("spinBox")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(400, 140, 91, 31))
        self.pushButton.setObjectName("pushButton")


        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(120, 60, 271, 31))
        self.lineEdit.setObjectName("lineEdit")
        MainWindow.setCentralWidget(self.centralwidget)
        self.pushButton.clicked.connect(atomsplitter(self, self.lineEdit.text(), self.spinBox.value()))
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.textBrowser_2, self.spinBox)
        MainWindow.setTabOrder(self.spinBox, self.textBrowser)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.textBrowser.setHtml(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Adres pliku:</p></body></html>"))
        self.textBrowser_2.setHtml(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Liczba części:</p></body></html>"))
        self.spinBox.setToolTip(_translate("MainWindow", "<html><head/><body><p>Liczba części</p></body></html>"))
        self.pushButton.setText(_translate("MainWindow", "Split!"))
        self.lineEdit.setPlaceholderText(_translate("MainWindow", "C:\\\\Users\\\\"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

我所做的唯一编辑是atomspliter函数，导入os和binascii，并在button和atomspliter函数之间添加一个连接。你知道吗

对不起，如果有些东西很难理解，英语不是我的第一语言。你知道吗

Answer 1

当你把一个信号连接到一个函数时，你必须通过名字和它的调用来完成，也就是说，myslot而不是myslot()。但是也可以使用lambda。你知道吗

更改：

self.pushButton.clicked.connect(atomsplitter(self, self.lineEdit.text(), self.spinBox.value()))

收件人：

self.pushButton.clicked.connect(lambda: atomsplitter(self, self.lineEdit.text(), self.spinBox.value()))