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python 3.2 UnicodeEncodeError：'charmap'编解码器无法在位置9629中编码字符'\ u2013'：字符映射到

python

我正在尝试制作一个从sqlite3数据库中获取数据的脚本，但是遇到了问题。

数据库中的字段为text类型，并且包含html格式的文本。见下面的文字

<html>
<head>
<title>Yahoo!</title>
</head>
<body>
<style type="text/css">
html {}
.yshortcuts {border-bottom:none !important;}
.ReadMsgBody {width:100%;}
.ExternalClass{width:100%;}
</style>
<table cellpadding="0" cellspacing="0" bgcolor="#ffffff">    
<tr>
<td width="550" valign="top" align="left">

    <table cellpadding="0" cellspacing="0" width="500">
        <tr>
            <td colspan="3"><img        src="http://mail.yimg.com/nq/assets/sharedmessages/v1/us/logo.gif" width="292" height="51" style="display:block;" border="0" alt="Yahoo! Mail"></td>
        </tr>
        <tr>
            <td rowspan="3" width="1" bgcolor="#c7c4ca"></td>
            <td width="498" height="1" bgcolor="#c7c4ca"></td>
            <td rowspan="3" width="1" bgcolor="#c7c4ca"></td>
        </tr>
        <tr>
            <td width="498" valign="top" align="left">
            <table cellpadding="0" cellspacing="0">
                <tr>
                    <td width="498" bgcolor="#61399d" align="left" valign="top">
                    <table cellspacing="0" cellpadding="0"><tr><td height="24"></td></tr></table>
                    <div style="font-family:Arial, Helvetica, sans-serif;font-size:23px;line-height:27px;margin-bottom:10px;color:#ffffff;margin-left:15px;"><span style="color:#ffffff;text-decoration:none;font-weight:bold;line-height:27px;">Välkommen till Yahoo! Mail.</span></div>
                    <div style="font-family:Arial, Helvetica, sans-serif;font-size:22px;line-height:26px;margin-bottom:1px;color:#ffffff;margin-left:15px;margin-bottom:7px;margin-right:15px;">Ansluta och dela går snabbt och enkelt och är tillgängligt överallt.</div>
                    </td>
                </tr>
                <tr>
                    <td><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/b1.gif" width="498" height="18" style="display:block;" border="0"></td>
                </tr>
            </table>
            <table cellpadding="0" cellspacing="0" width="498">
                <tr>
                    <td width="292" valign="top">
                    <table cellpadding="0" cellspacing="0">
                        <tr>
                            <td><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/grad.gif" width="292" height="9" style="display:block;"></td>
                        </tr>
                        <tr>
                            <td width="292" bgcolor="#ffffff" align="left" valign="top">
                            <table cellspacing="0" cellpadding="0"><tr><td height="11"></td></tr></table>
                            <div style="margin-left:15px;">                  
                                <div style="font-family:Arial, Helvetica, sans-serif;font-size:14px;line-height:18px;color:#333333;margin-bottom:11px;font-weight:bold;">Det är lätt som en plätt att komma igång.</div>
                                <table cellpadding="0" cellspacing="0" width="267">
                                    <tr>
                                        <td width="16" align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:14px;line-height:16px;color:#61399d;margin-bottom:9px;font-weight:bold;">1. </div></td>
                                        <td align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:13px;line-height:16px;color:#61399d;margin-bottom:9px;"><a rel="nofollow" target="_blank" href="http://us-mg999.mail.yahoo.com/neo/launch?action=contacts" style="text-decoration:underline;color:#61399d;"><span>Lägg till alla dina kontakter på en plats</span></a>.</div></td>
                                    </tr>
                                    <tr>
                                        <td align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:14px;line-height:16px;color:#61399d;margin-bottom:9px;font-weight:bold;">2. </div></td>
                                        <td align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:13px;line-height:16px;color:#61399d;margin-bottom:9px;"><a rel="nofollow" target="_blank" href="http://mrd.mail.yahoo.com/themes" style="text-decoration:underline;color:#61399d;"><span>Anpassa din nya inkorg</span></a>.</div></td>
                                    </tr>
                                    <tr>
                                        <td align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:14px;line-height:16px;color:#61399d;margin-bottom:9px;font-weight:bold;">3. </div></td>
                                        <td align="left" valign="top"><div style="font-family:Arial, Helvetica, sans-serif;font-size:13px;line-height:16px;color:#61399d;"><a rel="nofollow" target="_blank" href="http://se.overview.mail.yahoo.com/mobile" style="text-decoration:underline;color:#61399d;"><span>Anslut överallt på dina mobila enheter</span></a>.</div></td>
                                    </tr>
                                </table>

                            </div>
                            </td>
                        </tr>
                        <tr><td height="13"></td></tr>
                    </table>
                    </td>
                    <td width="196" valign="top">
                    <table cellpadding="0" cellspacing="0">
                        <tr>
                            <td width="1" bgcolor="#fbfbfd" valign="top"><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/g1.gif" width="1" height="21" style="display:block;"></td>
                            <td width="1" bgcolor="#f5f6fa" valign="top"><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/g2.gif" width="1" height="21" style="display:block;"></td>
                            <td width="1" bgcolor="#e8eaf1" valign="top"><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/g3.gif" width="1" height="21" style="display:block;"></td>
                            <td width="1" bgcolor="#d4d4d4"></td>
                            <td width="186" bgcolor="#f0f0f0" align="left" valign="top">  
                            <table cellspacing="0" cellpadding="0"><tr><td height="3">   </td></tr></table>
                            <div style="margin-left:11px;">
                            <div style="font-family:Arial, Helvetica, sans-serif;font-size:13px;line-height:16px;color:#333333;margin-bottom:9px;"><b>Info för dig:</b></div>
                            <div style="font-family:Arial, Helvetica, sans-serif;font-size:12px;color:#43494e;line-height:18px;margin-bottom:10px;">
                            Yahoo!-ID och e-postadress:<br />
                            <div style="font-family:Arial, Helvetica, sans-serif;font-size:12px;color:#43494e;line-height:18px;">
                            Håll ditt konto och inställningar aktuella. <br><a rel="nofollow" target="_blank" href="https://edit.yahoo.com/config/eval_profile" style="text-decoration:underline;color:#61399d;"><span>Mitt konto</span></a> 
                            </div>
                            </div>
                            <table cellspacing="0" cellpadding="0"><tr><td height="20"></td></tr></table>
                            </td>
                            <td width="1" bgcolor="#dbdbdb"></td>
                            <td width="1" bgcolor="#ced2de"></td>
                            <td width="1" bgcolor="#dbdfed"></td>
                            <td width="1" bgcolor="#e8ebf3"></td>
                            <td width="1" bgcolor="#f3f4f9"></td>
                            <td width="1" bgcolor="#fafbfc"></td>
                        </tr>
                        <tr>
                            <td colspan="11"><img src="http://mail.yimg.com/nq/assets/sharedmessages/v1/all/b2.gif" width="196" height="8" style="display:block;" border="0"></td>
                        </tr>
                        <tr><td height="13"></td></tr>
                    </table>
                    </td>
                    <td width="10"></td>
                </tr>
            </table>
            </td>
        </tr>
        <tr>
            <td width="498" height="1" bgcolor="#c7c4ca"></td>
        </tr>
    </table>
    <table cellpadding="0" cellspacing="0" width="500">
        <tr>
            <td align="center" valign="top">
            <table cellspacing="0" cellpadding="0"><tr><td height="10"></td></tr></table>
                <div style="font-family:Arial, Helvetica, sans-serif;font-size:11px;line-height:18px;margin-bottom:10px;">
                <a rel="nofollow" target="_blank" href="http://info.yahoo.com/legal/se/yahoo/utos.html" style="text-decoration:underline;color:#61399d;">Yahoo! Villkor för användning</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;<a rel="nofollow" target="_blank" href="http://info.yahoo.com/legal/se/yahoo/mail/atos.html" style="text-decoration:underline;color:#61399d;">Yahoo! Mail –Villkor för användning</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;<a rel="nofollow" target="_blank" href="http://info.yahoo.com/privacy/se/yahoo/details.html" style="text-decoration:underline;color:#61399d;">Yahoo! Sekretesspolicy</a>
                </div>
            </td>
        </tr>
        <tr>
            <td align="left" valign="top">
                <div style="font-family:Arial, Helvetica, sans-serif;font-size:11px;line-height:14px;color:#545454;margin-left:16px;margin-right:14px;">Var god svara inte på detta meddelande. Detta är ett servicemeddelande som rör din användning av Yahoo! Mail. Om du vill veta mer om Yahoo!s användning av personlig information, inklusive användning av webb-beacons i HTML-baserad e-post, kan du läsa vår Yahoo! Sekretesspolicy. Yahoo!s adress är 701 First Avenue, Sunnyvale, CA 94089, USA.<br /><br />RefID: lp-1037111</div>
            </td>
        </tr>
    </table>





    </td>
</tr>
</table>
<img width="1" height="1" src="http://pclick.internal.yahoo.com/p/s=2143684696">
</body>
</html>`

尝试提取数据的python代码如下。

>>> import sqlite3
>>> conn = sqlite3.connect('C:/temp/Mobils/export/com.yahoo.mobile.client.android.mail/databases/mail.db')
>>> c = conn.cursor()
>>> conn.row_factory=sqlite3.Row
>>> c.execute('select body from messages_1 where _id=7')
<sqlite3.Cursor object at 0x0000000001FB78F0>
>>> r = c.fetchone()
>>> r.keys()
['body']
>>> print(r['body'])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python32\lib\encodings\cp850.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_map)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u2013' in position 9629: character maps to <undefined>
>>>

是否有人对如何将其打印/写入文件有任何想法。是的，我知道这是打印到stdout的，但是当我尝试写入文件时会出现相同的UnicodeEncodeError。我尝试了文件对象的写入方法和print(r['body'], file=f)。


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2021-01-20

共1个答案

小编典典

当您打开要写入的文件时，请使用可以处理所有字符的特定编码打开它。

with open('filename', 'w', encoding='utf-8') as f:
    print(r['body'], file=f)
2021-01-20