Python 命令行中的 UTF 编码问题

Question

最近几天我一直在学习Python编程，还是个初学者。最近，我用了一本叫《云端编程》的书来学习。问题是，虽然这些教科书涵盖了很多主题，但它们对UTF-8编码在非英语语言中的处理只是简单提了一下。因此，我想问你们一个问题——怎么才能让下面这段代码在我的母语中正确显示UTF-8字符。

# -*- coding: utf-8 -*-
import datetime
import sys

class ChatError(Exception):
""" Wyjątki obsługujące wszelkiego rodzaju błędy w czacie."""
def __init__(self, msg):
    self.message = msg


# START: ChatMessage
class ChatMessage(object):
"""Pojedyncza wiadomość wysłana przez użytkownika czatu"""
def __init__(self, user, text):
    self.sender = user
    self.msg = text
    self.time = datetime.datetime.now()
def __str__(self):
    return "Od: %s o godzinie %s: %s" % (self.sender.username,
                                   self.time,
                                   self.msg)

# END: ChatMessage

# START: ChatUser
class ChatUser(object):
"""Użytkownik biorący udział w czacie"""
def __init__(self, username):
    self.username = username
    self.rooms = {}

def subscribe(self, roomname):
    if roomname in ChatRoom.rooms:
        room = ChatRoom.rooms[roomname]
        self.rooms[roomname] = room
        room.addSubscriber(self)
    else:
        raise ChatError("Nie znaleziono pokoju %s" % roomname)

def sendMessage(self, roomname, text):
    if roomname in self.rooms:
        room = self.rooms[roomname]
        cm = ChatMessage(self, text)
        room.addMessage(cm)
    else:
        raise ChatError("Użytkownik %s nie jest zarejestrowany w pokoju %s" % 
                        (self.username, roomname))

def displayChat(self, roomname, out):
    if roomname in self.rooms:
        room = self.rooms[roomname]
        room.printMessages(out)
    else:
        raise ChatError("Użytkownik %s nie jest zarejestrowany w pokoju %s" % 
                        (self.username, roomname))
# END: ChatUser

# START: ChatRoom
class ChatRoom(object):
"""A chatroom"""

rooms = {}

def __init__(self, name):
    self.name = name
    self.users = []
    self.messages = []
    ChatRoom.rooms[name] = self

def addSubscriber(self, subscriber):
    self.users.append(subscriber)
    subscriber.sendMessage(self.name, 'Użytkownik %s dołączył do dyskusji.' %
                           subscriber.username)

def removeSubscriber(self, subscriber):
    if subscriber in self.users:
        subscriber.sendMessage(self.name, 
                               "Użytkownik %s opóścił pokój." % 
                               subscriber.username)
        self.users.remove(subscriber)

def addMessage(self, msg):
    self.messages.append(msg)

def printMessages(self, out):
    print >>out, "Lista wiadomości: %s" % self.name
    for i in self.messages:
        print >>out, i
# END: ChatRoom

# START: ChatMain
def main():
room = ChatRoom("Main") 
markcc = ChatUser("MarkCC")
markcc.subscribe("Main")
prag = ChatUser("Prag")
prag.subscribe("Main")

markcc.sendMessage("Main", "Hej! Jest tu kto?")
prag.sendMessage("Main", "Tak, ja tu jestem.")
markcc.displayChat("Main", sys.stdout)


if __name__ == "__main__":
main()
# END: ChatMain

这段代码是从前面提到的书中摘录的，但我在Windows命令行中无法正确显示非英语字符（尽管它是支持的）。如你所见，我在开头加了编码声明（# -- coding: utf-8 -），这让代码能够运行。我还尝试使用u"字符串"的语法，但没有成功——它返回了以下信息：

UnicodeEncodeError: 'ascii' codec can't encode character u'\u017c' in position 5
1: ordinal not in range(128)

我该怎么做才能让这些字符正确显示呢？是的，我会经常处理格式为UTF的字符串。我非常感谢你们的帮助。

字符串处理命令行编程学习格式化字符串编码声明 utf-8编码语言支持非英语字符

Python 命令行中的 UTF 编码问题

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