strip

入门七天，如何用十几行python代码爬取百度首页

由 匆匆过客 提交于 2020-02-25 19:50:20
这个爬虫很简单，只要稍微了解urllib库就可以写出来。urllib库在 python2和python3上有很大的区别，python2有urllib和urllib2两个库，Python3中将python2的urllib和urllib2两个库合并成了一个urllib库，而且不需要自己去安装，只要下载python3就已经自带了这库。 urllib简介： urllib提供了一系列用于操作URL的功能的库，其主要包括以下模块。 urllib.request 请求模块 urllib.error 异常处理模块 urllib.parse url解析模块 urllib.robotparser robots.txt解析模块 urllib.request 请求模块 直接用urllib.request模块的urlopen( )获取页面，date的数据格式为bytes类型，需要decode( )解码，转换成str类型。 urillib的参数及解释： url: 需要打开的网址 data：Post提交的数据 timeout：设置网站的访问超时时间 context 参数：它必须是 ssl.SSLContext 类型，用来指定 SSL 设置。 cafile 和 capath 两个参数：是指定CA证书和它的路径，这个在请求 HTTPS 链接时会有用。 cadefault 参数：现在已经弃用了，默认为 False

python3: .strip( ) not working as expected [duplicate]

由 若如初见. 提交于 2020-01-30 10:49:11
问题 This question already has answers here : Strip function is not working as expected (2 answers) Closed 6 months ago . I am parsing a file and want to strip the word Energy from the lines of the file but using .strip("Energy") doesn't yield the desired result and removed the 'E' of the 'Epoch'. I am probably not using the data types correctly or don't understand .strip() correctly. Please explain why am I getting the output given at the end of this post. I have a file which looks like : Epoch

python3: .strip( ) not working as expected [duplicate]

由 社会主义新天地 提交于 2020-01-30 10:48:06
问题 This question already has answers here : Strip function is not working as expected (2 answers) Closed 6 months ago . I am parsing a file and want to strip the word Energy from the lines of the file but using .strip("Energy") doesn't yield the desired result and removed the 'E' of the 'Epoch'. I am probably not using the data types correctly or don't understand .strip() correctly. Please explain why am I getting the output given at the end of this post. I have a file which looks like : Epoch

strip remove '_' unexpectedly

由 て烟熏妆下的殇ゞ 提交于 2020-01-30 05:58:14
问题 >>> x = 'abc_cde_fgh' >>> x.strip('abc_cde') 'fgh' _fgh is expected. How to understard this result? 回答1: Strip removes any characters it finds from either end from the substring: it doesn't remove a trailing or leading word. This example demonstrates it nicely: x.strip('ab_ch') 'de_fg' Since the characters "a", "b", "c", "h", and "_" are in the remove case, the leading "abc_c" are all removed. The other characters are not removed. If you would like to remove a leading or trailing word , I

Removing space in dataframe python

由 ↘锁芯ラ 提交于 2020-01-29 03:48:09
问题 I am getting an error in my code because I tried to make a dataframe by calling an element from a csv. I have two columns I call from a file: CompanyName and QualityIssue. There are three types of Quality issues: Equipment Quality, User, and Neither. I run into problems trying to make a dataframe df.Equipment Quality, which obviously doesn't work because there is a space there. I want to take Equipment Quality from the original file and replace the space with an underscore. input: Top Calling

strip characters from url on javascript 'onclick'-command

由 こ雲淡風輕ζ 提交于 2020-01-14 06:04:53
问题 I'm afraid this may be a very stupid question. I want to refer people via a pop-up and automatically fetch the url from the current document (so that I don't have to adapt the code to every page). The link I'm using is like this: <a href="http://www.facebook.com/sharer.php" title="Add to Facebook" onclick="window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(location.href), 'facebook','toolbar=no,width=550,height=550'); return false;"></a> The problem I'm facing is with the

Strip whitespace in generated HTML using pure Python code

由 ↘锁芯ラ 提交于 2020-01-13 08:15:49
问题 I am using Jinja2 to generate HTML files which are typically very huge in size. I noticed that the generated HTML had a lot of whitespace. Is there a pure-Python tool that I can use to minimize this HTML? When I say "minimize", I mean remove unnecessary whitespace from the HTML (much like Google does -- look at the source for google.com, for instance) I don't want to rely on libraries/external-executables such as tidy for this. For further clarification, there is virtually no JavaScript code.

Strip whitespace in generated HTML using pure Python code

由 被刻印的时光 ゝ 提交于 2020-01-13 08:13:10
问题 I am using Jinja2 to generate HTML files which are typically very huge in size. I noticed that the generated HTML had a lot of whitespace. Is there a pure-Python tool that I can use to minimize this HTML? When I say "minimize", I mean remove unnecessary whitespace from the HTML (much like Google does -- look at the source for google.com, for instance) I don't want to rely on libraries/external-executables such as tidy for this. For further clarification, there is virtually no JavaScript code.

Regex to strip phpdoc multiline comment

由 随声附和 提交于 2020-01-13 02:15:39
问题 I have this: /** * @file * API for loading and interacting with modules. * More explaination here. * * @author Reveller <me@localhost> * @version 19:05 28-12-2008 */ I'm looking for a regex to strip all but the @token data, so the result would be: @file API for loading and interacting with modules. More explaination here. @author Reveller <me@localhost> @version 19:05 28-12-2008 I now have this: $text = preg_replace('/\r?\n *\* */', ' ', $text); It does the job partially: it only removes the

Is there a better way to use strip() on a list of strings? - python [duplicate]

由 江枫思渺然 提交于 2020-01-12 11:51:34
问题 This question already has answers here : Remove trailing newline from the elements of a string list (7 answers) Closed 3 years ago . For now i've been trying to perform strip() on a list of strings and i did this: i = 0 for j in alist: alist[i] = j.strip() i+=1 Is there a better way of doing that? 回答1: You probably shouldn't be using list as a variable name since it's a type. Regardless: list = map(str.strip, list) This will apply the function str.strip to every element in list , return a new
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