count、list、dictionary的应用

编写代码，统计下列字符串中Python出现的次数，并将Python及次数存储在字典中，打印实现以下效果图

str_1 = "I like Python. But which Python version should I use? Python 2 or Python 3?"

效果图：{'Python’: 4}

# conding:utf-8

str_1 = 'I like Python. But which Python version should I use? Python 2 or Python 3 ?'
new_str = str_1.count("Python")
new_list = [new_str]

new_dict = {
    'Python': new_str
}

print(new_dict)