Analysis of problems encountered by python2 in reading Chinese file encoding

Code ：

f = open("1.txt","r")
s = f.read()

View type :

type(s)

The result is str type （byte）, There's no mistake here .

Error reporting condition 1 ：

s + u'XXX'

str Type plus one utf-8 What's wrong with encoding a string ？

s Will be implicitly converted to utf-8, however s There may be some Chinese characters that are not in utf-8 The coding of , It will lead to an error ！

processing method ：s.decode("gb2312") Use gb2312 First to unicode There is no problem with splicing types .

Error reporting condition 2 ：

sqlite3.connect( Chinese path )

If the Chinese path is str The type will not be found , You need to change the Chinese path to unicode, Still need to use decode("gb2312").