[Python] Invalid mode (' W ') or filename: ' D:\x0bideo '

#-*-coding:utf-8-*-import stringimport jsonimport urllib2import urllibimport base64import sysreload (SYS) SYS.SETDEFAU Ltencoding ("Utf-8") #调用优酷网API获取json数据def Getyouku ():        req=urllib2. Request (Url,code)        Data=urllib2.urlopen (req). Read ()        obj=json.loads (data)             #把json格式字符串解码转换成Python对象        newobj=json.dumps (obj,indent=4,ensure_ascii=false)   #把Python对象编码转换成json字符串, indent, show Chinese        return newobj# Write JSON data to file Def jsonfile (newobj): File=open ("D:\video.json", "W") File.write (newobj) file.close ()   #开始if __name__ = = ' __main__ ':        url= "Https://openapi.youku.com/v2/searches/video/by_keyword.json"        params={' client_id ': ' Xxxxxxxxx ',                ' keyword ': ' Ice bucket Challenge ',                ' category ': ' Entertainment '}        Code=urllib.urlencode (params)        newobj= Getyouku ()        jsonfile (newobj)

"Problem"

"Resolution"

This error occurs when you use the built-in function file () or open (). Either because the file's open mode is incorrect, or if there is a problem with the filename.

The former only needs to pay attention to whether the file can be read or writable. The latter is a file-path-related issue that needs to be escaped with R or R before the file name,

such as: File (r "D:\video.json", ' W '). or turn the backslash \ into two, such as file ("D:\\video.json", ' W ').

[Python] Invalid mode (' W ') or filename: ' D:\x0bideo '