python将回车作为输入内容

# -*- coding: utf-8 -*-

file_name=input("请输入文件名：")
file_name=file_name+".txt"
something_file=open(file_name,"w")

stopword=":q"
file_content=""
print("请输入内容【单独输入‘:q‘保存退出】：")
for line in iter(input,stopword):
    file_content=file_content+line+"\n"
print (file_content,file=something_file)
something_file.close()

# -*- coding: utf-8 -*-

def file_write(file_name):
    f = open(file_name, 'w')
    print('请输入内容【单独输入\':q\'保存退出】：')

    while True:
        file_content = input()
        if file_content != ':q':
            f.write('%s\n' % file_content)
        else:
            break

    f.close()

file_name = input('请输入文件名：')
file_write(file_name)