我有一个Python库存更新脚本,每晚运行一次,从网站上提取库存。我最近开始遇到问题,经过进一步调查发现,当我通过网络浏览器(查看源代码)查看源内容时,看起来很正常。但是,当我用python将它打印到控制台时,它看起来很奇怪(并打破了脚本)。想知道是否有人见过这样的事情或者知道是什么造成的?
Web浏览器显示此信息(网址编辑):
<ul class='vnav vnav__subnav vnav--level2'>
<li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Folding Tables</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bookcases</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Printer Stands</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Computer Desks</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Office Chairs</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Filing Cabinets</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Letter Holders</a>
</li></ul>
</li>
<li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bathroom</a>
<ul class='vnav vnav__subnav vnav--level2'>
<li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bathroom Mirrors</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bathroom Sinks</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bathroom Cabinets</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bathroom Vanities</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Laundry Hampers</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Bath Towel Sets</a>
</li><li class='vnav__item'><a href='https://xx.htm' class='vnav__link'>Shower Curtains</a>
</li></ul>
但是控制台中的Python print()显示了这个(URL编辑):
<ul class="vnav vnav__subnav vnav--level2">
<li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Folding Tables</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Bookcases</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Printer Stands</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Computer Desks</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Office Chairs</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Filing Cabinets</a>
</li><li class="vnav__item"><a class="vnav__link" href="https://xx.htm">Letter Holders</a>
</li></ul>
</li>
<li class="vnav__item"><a href="https:">/ / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a t h r o o m / a >
u l c l a s s = ' v n a v v n a v _ _ s u b n a v v n a v - - l e v e l 2 ' >
l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a t h r o o m M i r r o r s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a t h r o m S i n k s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a h r o o m C a b i n e t s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a h r o o m V a n i t i e s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > L a u n r y H a m p e r s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > B a t h T o w e l S e t s / a >
/ l i > l i c l a s s = ' v n a v _ _ i t e m ' > a h r e f = ' h t t p s : / / x x . h t m ' c l a s s = ' v n a v _ _ l i n k ' > S h o w e C u r t a i n s / a >
/ l i > / u l >
内容类型为“text / html”,编码在Web浏览器中为“ISO-8859-1”,但在通过Python打印时显示“UTF-8”。此外,在Python控制台print()上,html的整个剩余部分显示所有空格和字符,最后右边除外,它恢复正常(除了看起来有2个标签,这是一个不同的问题):
/ b o d y >
/ h t m l >
</a></li></ul></div></nav></body></html>
最后,如果我尝试使用UTF-8而不是ISO-8859-1进行解码,我会收到以下错误:
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe9 in position 74396: invalid continuation byte
没关系,想通了。
重要提示:在不同的VirtualEnvs中工作时,请务必确保您的python版本相同。我最初没有检查过,但是当我来回跳跃时,我决定验证。我假设的python版本正在使用,不是。有一次我做了开关......是的!更好。