escape

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I try to store binary file into postgresql through sqlalchemy and file is uploaded from client. A bit google on the error message brings me to this source file :" wrapped object is not bytes or a buffer, this is an error" binaries = [] for f in request . files . values (): if f and allowed_file ( f . filename ): fn = secure_filename ( f . filename ) file_path = os . path . join ( basedir , fn ) f . save ( file_path ) #data = f.read() data = open ( fn , 'rb' ). read () binaries . append ( psycopg2 . Binary ( data )) f . close ()

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm passing some values into a postgres character field using psycopg2 in Python. Some of the string values contain periods, slashes, quotes etc. With MySQL I'd just escape the string with MySQLdb.escape_string(my_string) Is there an equivalent for psycopg2? 回答1: Escaping is automatic, you just have to call: cursor.execute("query with params %s %s", ("param1", "pa'ram2")) (notice that the python % operator is not used) and the values will be correctly escaped. You can escape manually a variable using extensions.adapt(var) , but this would be

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a url containing the following: /somepath/morestuff/ohno%25foobar For some reason apache is reporting a 400 bad request (it has something to do with the %25). I am using mod_rewrite to rewrite the path to point to my codeigniter instance but it's not even getting to codeigniter, it's just the default apache error. Any ideas? 回答1: I suspect that you're using PATH_INFO to handle your CodeIgniter requests. Consequently, your .htaccess file contains a rule set that looks similar to this: RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Short version: What kind of escape sequence can one use to search for unicode characters in command line mysql? Long version: I'm looking for a way to search a column for records containing a unicode sequence, U+200B, in mysql from the command line. I can't figure out which kind of escape to use. I've tried \u200B and x200B select _utf8 x'200B'; Now I'm stuck trying to get that working in a "LIKE" query. This generates the characters, but the % seem to lose their special meaning when placed in the LIKE part: select _utf8 x'0025200B0025'; I

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: Replace single backslash with double backslash 5 answers Well I have a mini program with C#, so I do this in my program wordSearch = "T:\\" wordReplace = "T:\\Gestion\\" content = Regex.Replace(content, wordSearch, wordReplace); But doesn't work. The error ir parsing "T:\" - illegal \ at end of pattern. Any idea ? Thanks! Sorry! Perhaps I don't explain well. So... I try again Hi, I did a form taking a string for input, but if this string is "T:\", the program take "T:\". So, this string I save in a

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm getting lots of warnings like this in Python: DeprecationWarning: invalid escape sequence \A orcid_regex = '\A[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{3}[0-9X]\Z' DeprecationWarning: invalid escape sequence \/ AUTH_TOKEN_PATH_PATTERN = '^\/api\/groups' DeprecationWarning: invalid escape sequence \ """ DeprecationWarning: invalid escape sequence \. DOI_PATTERN = re.compile('(https?://(dx\.)?doi\.org/)?10\.[0-9]{4,}[.0-9]*/.*') <unknown>:20: DeprecationWarning: invalid escape sequence \( <unknown>:21: DeprecationWarning: invalid escape sequence \(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I’m using AngularJS as the front-end JS library, with Go templates within Revel framework to to generate the markup on the back-end. But both Go and Angular use {{ and }} for delimiters in their templates. How can I escape them in Go to pass them to AngularJS? 回答1: I don't know how to escape it, but you could choose a different delimiter instead using Delims : func (t *Template) Delims(left, right string) *Template According to the mailing list , this is probably the best option. The argument was that if you escape it, your templates will be

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a problem with a regex in java. When I try to use this regex: ^(?:(?:([01]?\d|2[0-3]):)?([0-5]?\d):)?([0-5]?\d)$ I get the following error "Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \ )" I don't know how to handle that error. I already tried to double the backslashes, but it didn't work. I hope someone can help me with this. Thanks 回答1: This should work ^(?:(?:([01]?\\d|2[0-3]):)?([0-5]?\\d):)?([0-5]?\\d)$ The reason is that the listed symbols in the error message have special meaning, but \d is not one of those

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In vim , I often want to search on a string with finicky characters which need escaping. Is there a way I can turn off the meaning of all special characters, kind of like regex-off mode in less, or fgrep ? I am dealing with particularly hairy strings; here's an example: ((N/N)/(N/N))/N Not having to escape any characters to do a search in vim would be a major timesaver. \V in Vim helps with some metacharacters, but critically not / or \. Thanks all! In the end, I added this to my .vimrc: command! -nargs=1 S let @/ = escape(' ', '\') nmap S

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I write an insert statement which includes the & character? For example, if I wanted to insert "J&J Construction" into a column in the database. I'm not sure if it makes a difference, but I'm using Oracle 9i. 回答1: I keep on forgetting this and coming back to it again! I think the best answer is a combination of the responses provided so far. Firstly, & is the variable prefix in sqlplus/sqldeveloper, hence the problem - when it appears, it is expected to be part of a variable name. SET DEFINE OFF will stop sqlplus interpreting & this