Python restores the hexadecimal-encoded string of the form "\xe4 ..." to Chinese

One of the documents processed today has been translated into the hexadecimal encoding of "\xe4 ..." and other characters are normal.

Roughly studied under the discovery of these codes three a group representing a Chinese character, because the text is mixed with normal symbols, I decided to use a regular matching method to replace three sets of hexadecimal code strings with the Chinese characters they represent.

Input file contents such as:

#\xe5\xbe\xae\xe6\x84\x9f\xe8\xb0\xa2##\xe6\x8a\xa5\xe5\x96\x9c\xef\xbc\x9a\xe4\xba\x91\xe6\xa3\x80\xe7\xb2\x89 \xe4\xb8\x9d159\xe4\xb8\x87\xe4\xba\x86#\xe5\x9c\xa8\xe8\xbf\x99\xe4\xb8\xaa\xe5\x91\xa8\xe4\xb8\x89\xe4\xb8\ X8b\xe5\x8d\x885\xe6\x97\xb6\xef\xbc\x8c\xe4\xba\x91\xe6\xa3\x80\xe5\xbe\xae\xe5\x8d\x9a\xe7\xb2\x89\xe4\xb8\ X9d\xe8\xbf\x87159\xe4\xb8\x87\xe3\x80\x82\xe8\xbf\x87\xe5\x8e\xbb\xe7\x9a\x84\xe5\xa4\x9a\xe5\xb0\x91\xe4\xb8 \xaa\xe6\x97\xa5\xe6\x97\xa5\xe5\xa4\x9c\xe5\xa4\x9c\xef\xbc\x8c\xe8\xae\xb8\xe8\xae\xb8\xe5\xa4\x9a\xe5\xa4\ x9a\xe8\xae\xa4\xe8\xaf\x86\xe7\x9a\x84\xe4\xb8\x8d\xe8\xae\xa4\xe8\xaf\x86\xe7\x9a\x84\xe6\x9c\x8b\xe5\x8f\ X8b\xe5\x92\x8c\xe5\x81\xb6\xe4\xbb\xac\xe4\xb8\x80\xe8\xb7\xaf\xe5\x90\x8c\xe8\xa1\x8c\xef\xbc\x8c\xe4\xb8\ Xba\xe4\xba\x91\xe6\xa3\x80\xe5\xbe\xae\xe5\x8d\x9a\xe5\x8f\x91\xe5\xb1\x95\xe5\x87\xba\xe5\x8a\x9b\xe7\x8c\ Xae\xe7\xad\x96\xef\xbc\x8c\xe9\xbc\x93\xe5\x8a\xb2\xe6\x89\x93\xe6\xb0\x94\xef\xbc\x8c\xe4\xb8\xba\xe4\xba\ X91\xe6\xa3\x80\xe5\xbe\xae\xe4\xbf\xa1\xe7\x82\xb9\xe8\xb5\x9e\xef\xbc\x81\xe5\x9c\xa8\xe5\x8f\x8c\xe5\xbe\xae\xe5\xb9\xb3\xe5\x8f \xb0\xe4\xb8\x8a\xef\xbc\x8c\xe5\x81\xb6\xe5\x92\x8c\xe4\xbd\xa0\xe3\x80\x81\xe5\x92\x8c\xe4\xbb\x96\xe9\x83\ Xbd\xe6\x98\xaf\xe6\x9c\x8b\xe5\x8f\x8b\xef\xbc\x8c\xe6\x98\xaf\xe6\x9c\x8b\xe5\x8f\x8b\xe6\x89\x8d\xe8\x83\ Xbd\xe5\xb9\xb3\xe7\xad\x89\xe5\xaf\xb9\xe7\xad\x89\xe4\xba\xa4\xe6\xb5\x81\xe6\xb2\x9f\xe9\x80\x9a\xe3\x80\ X82\xe5\x92\xb1\xe6\xb0\xb8\xe8\xbf\x9c\xe6\x98\xaf\xe6\x9c\x8b\xe5\x8f\x8b\xef\xbc\x8c\xe6\x84\x9f\xe8\xb0\ Xa2\xe6\x82\xa8\xef\xbc\x81

ImportRedefUnicodetostr (s): Strtobytes= []     forIinchS.split ('\\x'):        ifI! ="': Num= Int (i,16) strtobytes.append (num) a=bytes (strtobytes). Decode ()returnadefTi (m): s=Str (M.group ()) a=Unicodetostr (s)returnApat= Re.compile (r'(\\x[0-9a-fa-f][0-9a-fa-f]) {3}') with open ('filename') as file: forLineinchFile:" "For m in Re.finditer (pat,line): Print (M.group ())" "        Print(Re.sub (Pat,ti,line))

Result is

# Micro Thank you # #报喜: Cloud inspection fans 1.59 million # in this Wednesday 5 o'clock in the afternoon, cloud check Weibo fans over 1.59 million. How many days of the past, many people do not know the acquaintance of friends and we go all the way, for the cloud to check the development of micro Bo to contribute, cheer up, for the cloud inspection praise! On the double micro platform, I and you, and he are friends, is a friend to equal exchange and communication. I will always be friends, thank you! 

Python restores the hexadecimal-encoded string of the form "\xe4 ..." to Chinese