So I'm using PyQT5 and Python to build this virtual library, but I have a problem with the on_click_remove button function. It deletes everything with the same attribute; if I have two books titled "one_piece" and I try to only remove one, the other will also get removed. I tried several approaches, but none worked. This is my code: import sys from PyQt5.QtWidgets import QApplication,QLineEdit,QVBoxLayout,QWidget,QPushButton,QListWidget,QMessageBox from PyQt5.QtGui import QIcon import books import pandas as pd class MainWindow(QWidget): def __init__(self): super().__init__() self.setGeometry(100,100,800,800) self.setWindowTitle("Virtual Library") self.setWindowIcon(QIcon("bookshelf.png")) self.vbox=QVBoxLayout() try: self.df = pd.read_csv("thelibraryy.csv") except FileNotFoundError: self.df = pd.DataFrame(columns=["Title", "Author", "Year", "Genre","Content"]) i=0 listo=[] while self.df.shape[0]>i: listo.append(f'the book {{{self.df["Title"]}}} by {{{self.df["Author"]}}} written in {{{self.df["Year"]}}} and its {{{self.df["Genre"]}}}') i+=1 self.book_list = QListWidget() self.vbox.addWidget(self.book_list) self.book_list.setStyleSheet("font-size:20px ;") self.book_list.addItems(listo) self.data_info={} self.Labels() self.title=self.data_info['Title'].text() self.author=self.data_info['Author'].text() self.year=self.data_info['Year'].text() self.genre=self.data_info['Genre'].text() self.Buttons() def Labels(self): self.names=['Title','Author','Year','Genre'] for name in self.names: self.field=QLineEdit(self) self.field.setPlaceholderText(f"Enter the {name} ...") self.field.setStyleSheet("font-size:20px; ") self.vbox.addWidget(self.field) self.data_info[name]=self.field self.setLayout(self.vbox) return self.data_info def Buttons(self): self.add=QPushButton("Add") self.vbox.addWidget(self.add) self.add.clicked.connect(self.on_click_add) self.remove=QPushButton("Remove") self.vbox.addWidget(self.remove) self.remove.clicked.connect(self.on_click_remove) self.edit=QPushButton("Edit") self.vbox.addWidget(self.edit) self.edit.clicked.connect(self.on_click_edit) buttons=[self.add,self.remove,self.edit] for i in buttons: i.setStyleSheet(""" QPushButton { background-color:rgba(255, 255, 255, 0.5); color: black; font-size: 25px; border: 2px solid #0078D7; border-radius: 20px; padding: 10px; } QPushButton:hover { background-color:rgb(0, 170, 255); color: white;}""") def on_click_add(self): self.title = self.data_info['Title'].text() self.author = self.data_info['Author'].text() self.year = self.data_info['Year'].text() self.genre = self.data_info['Genre'].text() if not self.year.isdigit(): QMessageBox.warning(self,"Input Error",f"Year Must Be A number not {self.year}") return if (self.title and self.author and self.year and self.genre): if not self.df[(self.df["Title"]==self.title) & (self.df["Author"]==self.author) &(self.df["Year"]==self.year) &(self.df["Genre"]==self.genre)].empty: QMessageBox.warning(self,"Input Error",f"this book {self.author} already Exist in the library ") else: book = books.Books(title=self.title, author=self.author, year=self.year, genre=self.genre,content=self.title.replace(" ","_")+".txt") frame = pd.DataFrame([{"Title": book.title, "Author": book.author, "Year": book.year, "Genre": book.genre,"Content":book.content}]) self.df=pd.concat([self.df,frame],axis=0,ignore_index=True) self.df.to_csv("thelibraryy.csv", index=False) self.book_list.addItem(f'the book {{{self.title}}} by {{{self.author}}} written in {{{self.year}}} and its {{{self.genre}}}') print("book is added to the library") for names,labels in self.data_info.items(): labels.setText("") else: QMessageBox.warning(self,"Input Error","You Forgot to Fill a Label") def on_click_remove(self): self.selected_item=self.book_list.currentItem() if self.selected_item: self.item_text = self.selected_item.text() self.start_of_title = self.item_text.find("{") + 1 self.end_of_title = self.item_text.find("}") self.text_title = self.item_text[self.start_of_title:self.end_of_title] self.start_of_author = self.item_text.find("by") + 5 self.end_of_author = self.item_text.find("written")-3 self.text_author = self.item_text[self.start_of_author:self.end_of_author] self.start_of_year = self.item_text.find("written in") + 13 self.end_of_year = self.item_text.find("and its")-3 self.text_year = self.item_text[self.start_of_year:self.end_of_year] self.start_of_genre = self.item_text.find("its") + 6 self.text_genre = self.item_text[self.start_of_genre:-1] self.df = self.df[((self.df['Title'] != self.text_title) & (self.df['Author'] != self.text_author) & (self.df['Year'] != self.text_year) & (self.df['Genre'] != self.text_genre))] self.df.to_csv("thelibraryy.csv", index=False) self.book_list.takeItem(self.book_list.row(self.selected_item)) else: QMessageBox.warning(self,"Selection Error","You Didn't Select Any Row") def on_click_edit(self): self.selected_item=self.book_list.currentItem() if self.selected_item: self.book_list.takeItem(self.book_list.row(self.selected_item)) self.item_text = self.selected_item.text() self.start_of_title = self.item_text.find("{") + 1 self.end_of_title = self.item_text.find("}") self.text_title = self.item_text[self.start_of_title:self.end_of_title] self.start_of_author = self.item_text.find("by") + 5 self.end_of_author = self.item_text.find("written")-3 self.text_author = self.item_text[self.start_of_author:self.end_of_author] self.start_of_year = self.item_text.find("written in") + 13 self.end_of_year = self.item_text.find("and its")-3 self.text_year = self.item_text[self.start_of_year:self.end_of_year] self.start_of_genre = self.item_text.find("its") + 6 self.text_genre = self.item_text[self.start_of_genre:-1] self.df=self.df[~(self.df['Title']==self.text_title)] self.df.to_csv("thelibraryy.csv", index=False) items={'Title':self.text_title,"Author":self.text_author,"Year":self.text_year,"Genre":self.text_genre} for names,labels in self.data_info.items(): labels.setText(items[names]) else: QMessageBox.warning(self,"Selection Error","You Didn't Select Any Row") def main(): app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_()) if __name__ == "__main__": main() Continue reading...
