Python encoded records

byte Stream and string

When you use Python to define a string, you actually store a byte string:

" ABC [--[97][98][99]

python2.x defaults to treat all strings as ASCII, but when the byte value is >127, the default parsing is problematic.

x="ABC"+chr (page)print  repr (x)#' abc\x96 ' u"Hello" + x#unicodedecodeerror: ' ASCII ' codec Can ' t decode byte

This requires that we get a byte stream and call it a decoding method to create a string (Unicode object)

x="abc\x80\x93"x=x.decode ("Utf-8")Printtype (x)<type'Unicode'>y="ABC"+char (150) y=y.decode ("windows-1252")Printtype (y)<type'Unicode'>Printx+y#abc-abc-

Codecs module

can provide a lot of help when processing the byte stream. You can use the defined encoding to open the file and the content that you read from the file is automatically converted to a Unicode object, or you can process the Unicode object with the specified encoding and then write to the file.

Import codecsf=codecs.open ('0.txt'w' ) Utf-8') f.write (u"\u2013") f.close ()

Reference: HTTP://WWW.TUICOOL.COM/ARTICLES/2MVRVV7

Python encoded records