问题标签 [shlex]
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python - 如何为 shlex.split 使用特定的停止字符?
shlex
如果找到了角色,如何判断;
,那么,不要再分割任何东西了?
例子:
应该给
而不是["hello", "column number 2", "foo", ";", "bar", "baz"]
.
更一般地说,有没有办法用 ? 定义“评论”分隔符shlex
?IE
应该给
python - wget缺少带有shlex和子进程的url
我很难理解为什么这会失败并出现wget: missing URL
错误:
我在这里想念什么?如果我只是直接给 subprocesscopy_command
字符串,那么它可以正常工作。
python - 包含 RegEx 的 Python shlex 拆分选项
可以说我想给出这个命令
./maryam -e crawl_pages -d domain.tld -r "a href=\".*"
并拆分它。
当我跑
我收到以下错误
我基本上想要的是让用户输入正则表达式的 -r 选项。
结果应该是这样的
python - Python subprocess.Popen giving error with unix 'find' command
I am trying to get the largest 20 files in a directory that are older than 60 days by passing the unix 'find' command to Python's subprocess.Popen. This is what I have tried:
where rmnt is a directory name (eg. '/mnt/active'). The print statements return the command correctly:
But I am getting this error:
I thought that the problem was due to the special character "\" but it is being printed as expected.
Update 1.
I found this similar question: find: missing argument to `-exec' when using subprocess
It deals with subprocess.call rather than subprocess.Popen but the answer that "there is no shell to interpret and remove that backslash" seems to apply here also. However, with the backslash removed I still get an error:
This error suggests that the backslash is not being passed to the find command
python - 在 Python 中使用 shlex 进行词法分析时如何处理多字符评论者?
我想用一些内联注释块解析一个字符串,比如/* comments */
,我想忽略这些注释。
例如,
如果我添加评论/*
者,这将被解释为两个评论者/
,*
并且我错过了/bar
理想情况下,我希望结果为
ps,至于@Chillie 的评论为什么不使用正则表达式。我之所以选择是shlex
因为我确实想用它shlex
来忽略字符串子引号中的空格。
例如,真实的用例可以是
我想捕获value string
引号中的,但不被引号内的空格分割,
我不是正则表达式专家。为这种情况设计一个好的模式对我来说有点困难。如果有人能想出一个正则表达式解决方案,我也很好。
python - 如何加快这个 Apache 日志解析?
我正在解析大型 Apache 日志,例如:
和:
对于每条线路,大约需要 0.1 毫秒(i5 笔记本电脑)/~0.9 毫秒(低端 Atom CPU N2800 1.86GHz)
这非常慢:每条线路将近 1 毫秒!所以我决定自己解析
shlex
(它很好地处理了引号等first "second block" "third block" fourth
)。
情况更糟!我得到,每行,~0.3 ms(i5 笔记本电脑)/~1.6ms 低端服务器问题:哪种更快的方法(可能使用直接正则表达式?)可以允许解析此类日志?我只需要
server port ip datetime url status bytes referer useragent
。
python - shlex.split() : How to keep quotes around sub-strings and not split by in-sub-string whitespace?
I want the input string "add [7,8,9+5,'io open'] 7&4 67"
to be split like ['add', "[7,8,9+5,'io open']", '7&4', '67']
, i.e, within the line, strings must remain within quotes and musn't be split at all , and otherwise whitespace based splitting is required, like so :
But the user shouldn't have to use the \\
if possible, at least not for quotes but if possible not for in-string whitespace too.
What would a function break_down()
that does the above look like ? I attempted the below, but it doesn't deal with in-string whitespace :
Maybe be there's a better function/method/technique to do this, I'm not very experienced with the entire standard library yet. Or maybe I'll just have to write a custom split()
?
EDIT 1 : Progress
So now the user only has to use a single \
to escape any quotes/spaces etc , kind of like they would in a shell. Seems workable.
django - 在我的 Django 项目中更改时重新加载 Celery
我正在关注 ChillarAnand 关于如何在我的 Django 项目中更改时重新加载 Celery 的示例,但它似乎并没有关闭以前的 Celery 工作人员。重新加载 Celery 时会引发以下错误:
我在 Django 的管理 > 命令 celery_worker.py 中的代码如下:
我尝试了以下“Kill”命令,在终端中使用时效果很好,但在命令脚本中使用时 OSX 会引发错误 - “kill:非法进程 ID:$(ps”
OSX:11.5.1 Django:3.2.6 芹菜:5.1.2
任何指导将不胜感激。
python - 在python中杀死卡住的进程
我正在使用 python shlex 模块从命令行捕获输出:-
我正在使用多处理来启动多个命令行进程,然后捕获它们并将它们转换为 df:-
问题是有时很少有进程卡在命令行中。如何杀死卡住超过 100 秒的进程。
假设我script p4.py
并行启动了 50 个进程,其中一个进程卡在带有一些 PID 的 shell 中。如果我在 100 秒内没有收到该进程的输出,我如何检查该进程并终止它..