【发布时间】:2013-05-02 20:13:49
【问题描述】:
我正在尝试制作一个从 sqlite3 数据库中获取数据的脚本,但我遇到了问题。
数据库中的字段是文本类型,并且包含 html 格式的文本。见下文
<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> | <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> | <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>
>>>
是否有人知道如何将其打印/写入文件。是的,我知道这是打印到标准输出的,但是当我尝试写入文件时,我得到了相同的 UnicodeEncodeError。我尝试了文件对象的写入方法和print(r['body'], file=f)。
【问题讨论】:
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这是一个 Windows 控制台问题,请参阅wiki.python.org/moin/PrintFails
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写入文件时,选择可以处理数据中代码点的编解码器。最好阅读 Python 和 Unicode:Python Unicode HOWTO.
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打印前一个简单的
replace("\u2013", "-")对我有用。 P.S.:是不是很好笑? 2013年问了一个关于字符代码\u2013问题的问题。
标签: python python-3.x sqlite