python3打印unicode到windows xp控制台编码cp437 [英] python3 print unicode to windows xp console encode cp437

问题描述

Ok, i want to print a string in my windows xp console. There are several characters the console cant print, so i have to encode to my stdout.encoding which is 'cp437'. but printing the encoded string, the 'ß' is printed as 'xe1'. after decoding back to unicode and printing the string, i get the output i want. but this feels somewhat wrong. how is the correct way to print a string and get ? for non-printable characters?

>>>var
'Bla u2013 großes'
>>>print(var)
UnicodeEncodeError: 'charmap' codec can't encode character 'u2013'

>>>var.encode('cp437', 'replace')
b'Bla ? groxe1es'
>>>print(var.encode('cp437', 'replace'))
b'Bla ? groxe1es'

>>>var.encode('cp437', 'replace').decode('cp437')
'Bla ? großes'
>>>print(var.encode('cp437', 'replace').decode('cp437'))
Bla ? großes

edit: @Mark Ransom: since i print a lot this makes the code pretty bloated i feel :/

@eryksun: excactly what i was looking for. thanks a lot!

解决方案

An alternate solution is to not use the crippled Windows console for general unicode output. Tk text widgets (accessed as tkinter Text instances) handle all BMP chars as long as the selected font will.

Since Idle used tkinter, it can as well. Running an Idle editor file (call it tem.py) containing

print('Bla u2013 großes')

prints the following in the Shell window.

Bla – großes

A file can be run through Idle from the console with -m and -r.

C:>python -m idlelib -r c:/programs/python34/tem.py

This opens a shell window and prints the same as above. Or you can create your own tk window with Label or Text widget.

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