做一个登陆的文件操作，存到文件中是一个字典的形式{name:[pwd,tel]},为啥会报错 ？请指点

def register(name, pwd, tel):
    with open('userdate.txt', 'a', encoding='utf-8') as f:
        new = {}
        new[name] = [pwd,tel]
        f.write('
' + str(new))
        return True
def same(name):
    with open('userdate.txt', 'r', encoding='utf-8') as f:
        for i in f:
            for k in eval(i): # 为什么eval(i)没有字典的方法keys()
                if name == k:
                    return False
    return Truedef main():
    print('1:注册)
    choice = input('请选择').strip()
    if choice == '1':
        name = input('输入用户名').strip()
        if same(name):
            pwd = input('输入密码').strip()
            tel = input('输入电话').strip()
            if register(name, pwd, tel):
                print('注册成功')
        else:
            print('用户名已被占用,重新输入')
            main()
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报错的信息
Traceback (most recent call last):
  File "E:/py/666.py", line 54, in <module>
    main()
  File "E:/py/666.py", line 35, in main
    if same(name):
  File "E:/py/666.py", line 12, in same
    for k in eval(i): 
  File "<string>", line 1
    
    ^
SyntaxError: unexpected EOF while parsing

Process finished with exit code 1
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