twstock | Taiwan stock market stock price retrieval | REST library

class PgStack:
    def __init__(self):
        stack = []
        
    def openNewTab(page):
        self.stack.append(page)
    
    def isEmpty(self):
        if not self.stack:
            return True
        return False
 
class Crawler:
    PgStack tabbar
    Page entry("https://www.cnyes.com/twstock/financial4.aspx")
    def __init__(self):
        self.tabbar.openNewTab(self.entry)
        while(not self.tabbar.isEmpty()):
            print("the entry has been pushed into the stack")

class Page:
    def __init__(self, url):
        self.url = url

if __name__ == "__main__": 
    Crawler crawler