一直运行不出来，求指正

class SequenceStack:
def init(self):
self.maxstacksize = 10
self.s = [None for x in range(0, self.maxstacksize)]
self.top = -1

def initstack(self):
    self.maxstacksize = 10
    self.s = [None for x in range(0, self.maxstacksize)]
    self.top = -1
    
def stackvisit(self,element):
    print(element,end = ' ')

def isemptystack(self):
    if self.top == -1:
        iTop = True
    else:
        iTop = False
    return iTop

def pushstack(self, x):
    if self.top < self.maxstacksize - 1:
        self.top = self.top + 1
        self.s[self.top] = x
    else:
        print("栈满")
        return

def popstack(self):
    if self.isemptystack():
        print("栈为空")
        return
    else:
        itop = self.top
        self.top = self.top - 1
    return self.s[itop]

def stacktraverse(self):
    if self.isemptystack():
        print("栈为空")
        return
    else:
        for i in range(0, self.top + 1):
            self.stackvisit(self.s[i])
            
def gettopstack(self):
    if self.isemptystack():
        print("栈为空")
        return
    else:
        return self.s[self.top]
    
def getstacklength(self):
    if self.isemptystack():
        print("栈为空")
        return
    else:
        return self.top+1
    

class testsequencestack:
def printout(self,st):
print(" (1)经判断当前栈 ",end=' ')
if st.isemptystack()==True:
print("为空")
else:
print("不为空")
st.PushStack('0')
st.PushStack('2')
st.pusgstack('4')
st.pushstack('6')
st.pushstack('8')
print(" \n(2) 元素 ",end=' ')
st.stacktraverse()
print("依此进栈 ",end=' ')
print(" \n (3)n 当前栈顶元素为 ",end=' ')
print(st.gettopstack())
print("\n(4) 当前栈中共有 ",end=' ')
print(st.getstacklength(),end=' ')
print("个元素，分别为 ",end=' ')
st.stacktraverse()
print("\n(5) 元素 ",st.gettopstack(),"出栈，当前栈中元素为",end=' ')
st.popstack()
st.stacktraverse()
print("\n(6) 元素 ",st.gettopstack(),"出栈，当前栈中元素为",end=' ')
st.popstack()
st.stacktraverse()
print("\n(7) 元素 ",st.gettopstack(),"出栈，当前栈中元素为",end=' ')
st.popstack()
st.stacktraverse()
print("\n(8) 元素 ",st.gettopstack(),"出栈，当前栈中元素为",end=' ')
st.popstack()
st.stacktraverse()
print("\n(9) 元素 ",st.gettopstack(),"出栈，当前 ",end=' ')
st.popstack()
if st.isemptystack()==True:
print("栈为空 ")
else:
print("栈不为空 ")
if name == 'main':
ss = SequenceStack()
tss = testsequencestack()
tss.printout(ss)

你最后的那个if语句写错了吧 横杠呢

最后的主函数写成这样试试

if __name__ == 'main':
    ss = SequenceStack()
    tss = testsequencestack()
    tss.printout(ss)

另外建议以代码格式发源代码，直接粘贴文本不清楚缩进情况