Regex remove slash python. Finally, to answer the original question.

Regex remove slash python c, I want a@b in a@b. replace('\',' ') I encountered the following error: Fi Beautifulsoup is a widely use python package that helps the user (developer) to interact with HTML within python. import re some = "I cannot take this B01234-56-K-9870 to the house of cards" I have the above string and trying to extract the string with dashes (B01234-56-K-9870) using python regular expression. Why would Python do this and what is this for? Is it the same in other languages like Java? Actually, what I'm asking is that: In Python, if I want to match whitespace, the regex and the String I input could both be "\s", right? However, in Java, the regex should be "\s", while the String should Feb 23, 2010 · And the simple regex used here "good enough". \b requires a letter, digit or underscore to be right before (in your pattern, and that is not the case). Notice that this is in a capture group which are marked with parentheses. – The fourth bird I think the second / terminates the regular expression in spite of the escape character. I think most people can tell what /^\/|\/$/g does after a few seconds, especially in the context of other non-regex code. *. Regular expression for removing all chars Oct 18, 2018 · Thanks James, but that on its own is not a great solution as I have multiple columns I need to remove backslashes from. Jan 10, 2012 · The [^/] means anything that's not a slash and the + after means I want one or more things that are not slashes. Nov 9, 2018 · Note: match will look for the regular expression at the beginning of the string you provide and only "match" the characters corresponding to the pattern. replace(r'[^0-9a-zA-Z*]$', "", regex=True, inplace = True)---however this only replaced the final iteration of the special characters May 26, 2018 · So it seems that python would convert \sto \\s. This method replaces non-alphanumeric characters with a space. The string-needed will always be between the second and third Jul 7, 2014 · That's an easy one. The single backslash is sufficient because putting r before the string has it treated as raw string. May 24, 2019 · I wish to programatically remove all of these and return the string into a giant blob of characters. 3. rsplit(): Cleaner regex for removing characters before dot or slash. May 15, 2020 · Remove final slash and number in a string in Python. replace('/', '_'). In other words, [0-9999] is equivalent to [0-9], you're just specifying the 9 duplicate times. split("/") ] And now all in one, c = [j for elem in a for j in re. *?word # Remove all up to the last occurrence of the word including it (greedy): ^. You see, in Java, I'm lucky enough to have the function String. 99? That's ricidulous!!! into: how much for the maple syrup 20 99 That s ridiculous Dec 16, 2020 · In a python string, backslash is an escape character. For example: string = ' - test ' it should return . If you are only looking to remove common indentation across multiple lines, try the textwrap module: >>> import textwrap >>> messy_text = " grrr\n whitespace\n everywhere" >>> print textwrap. The reason you find 2 matches with the first regex is that you're matching 5/1 and 1/2. I'm trying to remove the line break character at the end of each line in a text file, but only if it follows a lowercase letter, i. Oct 2, 2013 · find = re. *word See the non-greedy regex demo and a greedy regex demo. rstrip('/'). If you're putting this in a string within a program, you may actually need to use four backslashes (because the string parser will remove two of them when "de-escaping" it for the string, and then the regex needs two for an escaped regex backslash). [a-z]. Here's a simple if statement that will remove just the last character: if s[-1] == '\\': s = s[:-1] re — Regular expression operations it explains that r'' is “raw string notation”, used to circumvent Python’s regular character escaping, which uses a backslash. 7, this will escape non-alphanumerics that are not part of regular expression syntax as well. Jul 5, 2011 · The rstrip function will remove more than just the last character, though. string = 'test' or: string = ' -this - ' it should return . x, the special re sequence '\s' matches Unicode whitespace characters including [ \t\n\r\f\v]. The above like just take all the HTML text ( text ) and cast it to Beautifulsoup object - that means behind the sense its parses everything up (Every HTML tag within the given text) Feb 2, 2015 · Is this the correct way to remove everything between two backward slashes? Python regex to replace double backslash with single backslash. When I remove outliers my regression model R2 The problem is that regex match in Shortcuts appears to apply the /g global flag and you don't get to change that. To do it, instead of using regex, you could simply use the str. Python regular expression to exclude the end with string. So I coded as below to erase back slash+r n t f v temp_string = re. How can i do it? Feb 16, 2012 · @jupp0r There is no such thing as a "non greedy" version of this regex - it captures all (non-slash) characters between slashes. Python Remove Dec 16, 2012 · I don't want to do with regex again to remove : You probably don't need regular expressions here: python regular expression involving backslash. It is mentioned in official urlparse docs that:. These examples will become abc pre-school unit and abc pre/school district. log(str); // logs: "this is Mar 2, 2012 · To remove trailing whitespace while also preserving whitespace-only lines, you want the regex to only remove trailing whitespace after non-whitespace characters. Mar 6, 2020 · First, to separate all elements by the slash you can do. unicode_escape_decode when working with strings (as opposed to bytes objects), though. c. 0. Any help is great. ) If there could be multiple spaces before the dash, you can use this variant: / +-. Can any one please advise how to correct the regular expression so that it matches a dash or a forward slash? Any assistance will be most appreciated. Use str. – Mark Amery Commented Jul 5, 2014 at 22:50 The search method parses the regular expression string to identify the regular expression's meta-characters. May 19, 2017 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. * removes everything, so . */ with the empty string. Related. /^(. 3, this will escape non-alphanumerics that are not part of regular expression syntax, except for specifically underscore (_). dirname. Jul 16, 2014 · I'm trying to replace backslashes or front slashes in a string with double backslashes. 2. Replace Backslashes with Forward Slashes in Python. ) Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it. csv" . Returns the full name of the series with the separator needed to make it pretty (ie, replace it with space or what you want). This just helped me code the Control-Shift-Left/Right functionality in a Tkinter text widget (to skip past all the stuff like punctuation before a word). So it must be enclosed by single quotes. Try Teams for free Explore Teams May 30, 2013 · I would like to capture the text that occurs after the second slash and before the third slash in a string. *)\\. I really do need the regex for this. Your regex would return exactly the same as mine every time. In the example, \2 references the second group. As of Python 3. strip('= ') would remove every '=' and ' ' from the beginning and the end, and not just the string '= '. 20. regex101: Match 5 forward slashes Regular Expressions 101 I don't think it even helps increase readability, it just becomes a test of the extent to which someone can comprehend regex or not. */ removes everything up to and including the final / (because the previous one was included in the "everything"). search() . I'm a beginner with both Python and RegEx, and I would like to know how to make a string that takes symbols and replaces them with spaces. , print(os. From the Wikipedia article and other references, I've concluded it means the former at the start and the latter when used with brackets, but how does the program handle the case where the caret is at the start and at a bracket? Jan 31, 2014 · I want using regex in Python to remove -only if it is before all other non-whitespace chacacters or after all non-white space characters. escape() was changed to escape only characters which are meaningful to regex operations. e. Mar 14, 2020 · You could use 2 capturing groups to capture 1-3 chars A-Z or digits before and after the / and use those groups in the replacement with a space in between. I've tried a couple of things but it doesn't seem to work. '\n' is a newline, and 'what\'s your name' == "what's your name" ). escape_decode on the string and taking the result (or the first element of the result if escape_decode returns a tuple as it seems to in Python 3). If I remove the double slash, it doesn't print one at all: Feb 14, 2012 · in the following string: /seattle/restaurant I would like to match Seattle (if it is present) (sometimes the url might be /seattle/restaurant and sometimes it might be /restaurant). If you were to want the rest of the string, ignoring this first part, you could just add a capture group afterwards and pull group 1 (the first captured group) instead of 0 (the entire match): May 28, 2018 · The regular expressions matches the first example with the full stops in the date, but does not match the second and third example with the dashes and forward slashes in the date. Slash replacement inside a raw string. First action - Remove anything after the dash:. python 3 regex slash with Square Brackets. The datab Feb 25, 2022 · I’m dealing with text data and having problem erasing multiple back slashes. If you are using a Python version < 3. Share. In regular expressions where there's just a single instance, escaping a slash might not rise to the level of being considered a hindrance to legibility, but if it starts to get out of hand, and if your language permits alternate delimiters as Perl does, that would be the preferred solution. If the end of the line ends in a lower case letter, I want to replace the line break/newline character with a space. I believe this approach is probably easier to understand, after all regexes - in general - are hard to read: 1 day ago · Regular expressions (called REs, or regexes, or regex patterns) are essentially a tiny, highly specialized programming language embedded inside Python and made available through the re module. For portability and simplicity / clarity, be explicit when you can. Python Regex to Remove Special Characters from Middle of String and Disregard In the Python documentation for Regex, the author mentions: regular expressions use the backslash character ('\') to indicate special forms or to allow special characters to be used without invoking their special meaning. For more details check [Python 3. sub("\\\\", "", old_string) The trick here is that "\\\\" is a string literal describing a string containing two backslashes (each one is escaped), then the regex engine compiles that into a pattern that will match one backslash (doing a separate layer of unescaping). If you only want to look for strings with brackets that don't include a closing bracket character before the slash character, you could more Dec 9, 2020 · I am currently new to Regular Expressions and would appreciate if someone can guide me through this. Python regex remove dots from dot Jul 7, 2015 · Regex to remove only last slash in the URL \/$ explanation: \/ matches the character / literally $ assert position at end of a line DEMO. Here’s how you can do it: def remove_symbols_with_regex(input_string): return re. how to create a regex to remove multiple characters? 1. "a", or use a special sequence of characters, e. May 2, 2012 · Note also the existence of lstrip() and rstrip(), in case you want to e. If url is an absolute URL (that is, starting with // or scheme://), the url‘s host name and/or scheme will be present in the result. sub works quite well. However, I do not want to remove the accented letters which various languages have such as in French, German etc. string replace for slashes? 2. That had no tricky situations. 22. In the "Regular expression syntax" documentation of python's re package, the relevant sections are () and \number . match(r"^[a-z]+[*]?$", s) Aug 23, 2012 · With a regex, you may use two regexps depending on the occurrence of the word: # Remove all up to the first occurrence of the word including it (non-greedy): ^. *$/ The how of implementing the replace can be found in this Stackoverflow question. NET, Rust. Try /[^/]*$, which matches a slash, followed by any number of non-slashes, followed by the end of the string. Python regex to remove two digit number in between strings. One way is to use replace method on string: See full list on bobbyhadz. str2 = str1. x, you can just use \w and \W in your regular expression. This was for a single specific file. append( string. The description says: Replaces each substring of this string that matches the given regular expression with the given replacement. This regular expression will match everything from the begining of the line to the end and remove anything after the last period including the period. But the string also has a single quote! The representation above is also invalid because it would be parsed as ("I", m kidding, I, 'm a "persona"') where the m kidding, I would be treated as Python code, not a string, if you pasted it into Python. Regular expressions don't support cases in which something appears to be a comment to the regular expression but actually isn't: someString = "An example comment: /* example */"; // The comment around this code has been commented out. replace method. For example: how much for the maple syrup? $20. Using this little language, you specify the rules for the set of possible strings that you want to match; this set might contain English sentences, or e Dec 12, 2011 · I'm trying to build a regular expression that matches regular expressions between two forward slashes. I don't know syntax of Python regex Dec 5, 2016 · And subtleties of greedy / lazy matching behavior can vary from one regex implementation to the next (pcre, python, grep/egrep). Mar 13, 2017 · Python script using regex (re) to remove extra newlines. This splits the URL into a list of substrings between slashes, and stores the last one in last-part. I want to replace 'class=\\"highlight' with 'class=\"highlight'. sub(r'[()]', "", elem). replaceAll(String regex, String replacement). replace('\\', '') isn`t working. I have following code so far: Nov 4, 2011 · match trailing slash with Python regex. Specifically, I would use str_remove, which will replace in a string, the giver character by an empty string (""), effectively removing it (check here the documentation). For example: filename = " Oct 17, 2016 · I want to remove everything before the Main Text, but it seems like the / character is messing up the regex I have. . 7 but >= 3. c = [j for elem in for j in elem. Jan 2, 2018 · You're simply trying to condense whitespace around the punctuation, yeah? How about something like this: >>> import re >>> s = "what is that Mar 2, 2014 · No need for regular expressions here. Improve this answer. , as shown in the examples above. How do you remove characters in between specific characters using regex? Code that I have attempted: DF[0]. Thanks in advance for the help. g. I think that's more efficient and understandable than using new RegExp , but of course it needs a comment to identify the hex code. The second regex doesn't have the May 20, 2015 · Basically, you want ton replace every unadvised character by an underscore. d, I want a@ Nov 26, 2015 · To remove the last character, just use a slice: my_file_path[:-1]. If your language supports (or requires) it, you may wish to use a different delimiter than / for the regular expression so that you don't have to escape the forward-slash. For instance: regex("\\\\") is interpreted as May 2, 2021 · I am trying to remove all the backslashes from a string in my code, however when I tried the following: a = 'dfdfd\dafdfd' print(a) a. iteritems() if keep(key, value)} May 26, 2020 · I have some strings such as abc pre - school unit or abc pre / school district that I would need to delete additional spaces before and after hyphen and slash. I may not have emphasized this enough in the question. Thanks for Oct 16, 2018 · To enter literal Unicode characters in a program, there are options: enter the character directly, e. 38. Actually, if you look at the response from Abhi (who replied ahead of you), you'll see that he already suggested the string API but placed it in a lambda function so it better meets the criteria of the problem described in my original question. So: So: '\\' means “a string composed of one backslash”, since the first backslash in the string escapes the second backslash. Replace / -. in the regular expression this: \\. My regex skills are limited and I can't figure out a way to match everything other than the first occurrence of a character when /g is applied. So my_str = 'test_string' and my_str = "test_string" are both valid strings. */", "", x) # [1] "filename. This means it is not treated as a backslash, it has special functions (i. References Jan 17, 2011 · I have strings like these: text-23 the-text-9 2011-is-going-to-be-cool-455 I need to remove the final -number from the string in Python (and I'm terrible with regular expressions). This is obviously a job for regex (I think), and parsing through the file and removing all instances of the newline character sounds like it would work, but it doesn't seem to be going over all that well for me. What I don't May 29, 2019 · to remove every character which is not alphanumeric, space, newline, or forward slash. –. string = 'this' or: Jul 27, 2013 · The -is a range operator in character classes, but regular expressions are not aware of numeric ranges, only string ranges. May 11, 2015 · To put a backslash into a string you need to escape it too (or use raw string literals). It will remove all backslashes from the end of the string. Jun 8, 2011 · How to remove "\" as string in python. I found out that using . Now '\' is also a special regular expression meta-character and is interpreted as one UNLESS it is escaped at the time that the re search() method is executed. Feb 13, 2012 · The parentheses denote a group match - which can be later referenced as by its name (between_slashes). trim(); console. Aug 10, 2021 · I need to remove backslash ('\\') from string in Python. Mar 13, 2020 · How to remove string after slash just when there are more than one word in the string? regular expression remove words within string python Regular Expression May 21, 2013 · The above outputs a path with \ (2 back slashes) BUT if you wrap it with a print function, i. in a@b. As you can see even though the backslashes were at the beginning and the end of the string they didn't get removed. I end the regular expression with /? which means that there may or may not be a slash on Dec 22, 2015 · This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. So I basically I want to remove all special characters except for the newline and the forward slash. ¨ My work so far: string = 'C:\\Users\\Victor\\Drop Also, keep in mind that regular expressions are just a heuristic for this problem. The code will take a performance hit because instead of using one loop you end up with several, but we're still talking O (m * n) time complexity, where m is the number of strings and n the average number of characters per string. Sep 27, 2011 · I'm trying to do a regex to substitute in a backslash, but Python seems to be inserting a double-backslash, and I can't make it stop! >>> re. Feb 26, 2019 · I've the following string in python, example: "Peter North / John West" Note that there are two spaces before and after the forward slash. Finally, to answer the original question. Nov 23, 2024 · One of the most powerful tools for string manipulation in Python is the re module, which allows you to use regular expressions. In Python 3 you'd want to use codecs. I attempted this solution, but this works just replacing either slash or hyphen with hyphen. Python allows you to enclose strings in either double quotes (") or single quotes ('). May 3, 2013 · In Python 3. Also want to remove all whitespaces at the beginning or the end. Apr 18, 2016 · Or if you'd like to continue using regex, adjust your sub() call to sub(". If you see the string as a file path, the operation is os. The back slashes are there to 'escape' the string. 7 re. Jul 3, 2015 · What is the regular expression to search for word string that is not followed by the @ symbol? For example: mywordLLD OK myword. Thanks in advance. If the path is in fact a filename, I rather wonder where the extra slash came from in the first place. Dec 3, 2012 · I am a complete newbie to Python, and I'm stuck with a regex problem. What does work for me is to represent / as \x2F , which is the hexadecimal representation of / . Learn more Explore Teams Mar 13, 2009 · I'm trying to handle a bunch of files, and I need to alter then to remove extraneous information in the filenames; notably, I'm trying to remove text inside parentheses. If you insist on using regexes, though, matching on the end of the string is helpful here. remove trailing slashes but preserve leading ones. Aug 4, 2014 · Note that this will match slashes within the url itself, if that's desired: at all. getcwd()) it will output the 2 slashes with 1 slash so you can then copy and paste into an address bar! A neat regex for finding out whether a given torrent name is a series or a movie. So yeah, the simplest solution would ms4py's answer, calling codecs. Python regex replacing \u2022. Mar 18, 2021 · In tidyverse, there are multiple functions that could suit your needs. Without the preceding r , \\2 would reference the group. replace. Dec 21, 2012 · ) inside a regular expression in a regular python string, therefore, you must also escape the backslash by using a double backslash (\\), making the total escape sequence for the . Removing \u2018 and \u2019 character. I think it would be a lot less maintenance to keep the file being parsed simple enough for the regex, than to complicate the regex, into an unreadable symbol soup. split("/") ] Second, let's say that you want to remove a set of charachters from each element from the list, for example ['(',')'] Oct 28, 2020 · So this regex will capture the first slash, the second slash, and the text in between them, as long as they come at the beginning of the string. May 14, 2012 · If your slash is in its own variable slash = "\\", In a regular expression, you can escape a backslash just like any other character by putting a backslash in May 12, 2018 · An option using regex /[^/]+$ and replace with an empty string. compile("^(. replace(/\s+/g, ' '). match(find, l) print m. I've been attempting to get rid of strings after forward slash with certain rules. The simplest solution would be to use str. What should I do such that I can clean it to become " Apr 29, 2016 · You don't actually need regular expressions for this most of the time. *)\. *") for l in lines: m = re. Consider the following call. Sep 27, 2012 · Using regular expressions: import re new_string = re. sub(r'[^\w]', ' ', input_string) May 21, 2013 · I'm trying to replace all double backslashes with just a single backslash. If you want to find the pattern partway through the string you can use re. Docs]: Regular Expression Syntax (search for (?P<name>)) The contents between the parentheses (after >) are what we are looking for (we already know what): 0 or more non / chars; The next / char is our 2 nd May 12, 2016 · The \b word boundary makes it impossible to match (at the beginning of a string since there is no word there (i. */ (again with an actual space before the +). Remove Part of String Before the Last Forward Slash. The following piece of code is intended to replace tabs and newlines with a space. Jun 29, 2012 · Using Regex I need to remove the last folder from a path: Example : C:\Temp\Dir1\ Output : C:\Temp\ Please don't suggest that I can do this with c# or other programming language. group(1) I want to regex whatever in a string until the first dot. Example: /ipaddress/databasename/ I need to capture only the database name. 25. Removing backslash from directories & files with Python. Extract numbers preceding by slash (\)only. com Dec 6, 2024 · Removing multiple characters from a string in Python can be achieved using various methods, such as str. Jun 1, 2017 · Specifically when does ^ mean "match start" and when does it mean "not the following" in regular expressions?. This matches the last foward slash until the end of the string. How can I match it or any other string only made of lowercase letters and optionally ending with an asterisk? The following will do it: re. sub('a', '\\ b', 'a') '\\ b' Double backslash is supposed to be backslash (escape + backslash = backslash), but it ends up being literal. dedent(messy_text) grrr whitespace everywhere Apr 16, 2009 · So I think I need to modify this regex to find all appearances of the mentioned characters, but I'm not sure. Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. [] returns true if any of the characters / range specified is matched Ranges are defined in this case (yes, re is smart enough to differentiate ranges from chars). Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. You can either use two backslashes (to get one, four for two, etc) or put an r before the string (this ignores all backslashes) Jan 23, 2019 · Python regex with slash. (Note there's an actual space before the dash. Jul 21, 2015 · python regular expression to remove u'some text' from the unicode output. Regular expression to remove two line breaks Search, filter and view user submitted regular expressions in the regex library. So in this case, the regex is better IMO. I agree that you can just remove it. An example source string would be: There will be some text description here followed by the path: /XYZ/String-needed/ABC/ETC. For example: out_string = in_string. Use an alternation to match a forward slash followed by the rest of the sting to be removed. So you need to first check for a non-whitespace character. Jul 19, 2019 · For those coming here looking for a way to distinguish between Unicode alphanumeric characters and everything else, while using Python 3. Dec 23, 2011 · This solution doesn't use regexes. Regex to remove newline character from string. Each method serves a specific use case, and the choice depends on your requirements. Dec 20, 2016 · Is there a way to do this in one command, or will it have to be three separate commands? 2. // /* some_code(); // */ Sep 2, 2015 · I am trying to write a regex (with very little luck) to capture a string that occurs between two slashes in a specific location within a larger string. Is there an easy way to go about Dec 17, 2013 · Iterate over the dict and build a new dict containing only the elements you want to keep: new_dict = {key: value for key, value in old_dict. replace(), regular expressions, or list comprehensions. result = [] for string in strings: result. So the interpreter has to escape that offending single quote. This conflicts with Python’s usage of the same character for the same purpose in string literals. Nov 30, 2009 · In javascript you can call the Replace() method that will replace based on a regular expression. "\u3000". 1. The matched slash will be the last one because of the greediness of the . My main problem is that regular expressions themselves can contain forward slashes, escaped by a backslash. path. sub(r&q Dec 19, 2018 · Regular expression to remove special characters from start or end of a string. I thought that python treats '\\' as one backslash and r' Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. (This is just building on what @jpschroeder already provided:) I liked the Regex matching I had but I wanted it to match on and include an optional ending slash. replace(':', '_') In this example, the first replace returns a string with all the slash replaced, and the second call replace the colons. Oct 20, 2012 · Explaining [^0-9a-zA-Z]+ part just in case anyone is new to regex. dff OK myword@ld Exclude Dec 4, 2002 · In Python, we can convert a date to a string by: Reformat datetime object to use slashes instead of dashes. Example of its usage: str_remove(x, '-') Dec 14, 2012 · (A common mistake is to think that these methods remove characters in the order they're given in the argument, in fact, the argument is just a sequence of characters to remove, whatever their order is, that's why the . If you only want to remove a specific set of characters, use my_file_path. When I placed (\/*) at the end of the Regex (just before the /g that was at the end of my Regex), things worked the way I wanted them to work. When findings a forward slash remove the strings, check if there are more than one word before the slash and more than one word after slash (if two phrases are separated by slash) to remove the strings after the slash: Apr 17, 2014 · Python: Use Regular Expression to remove a character from string. Over 20,000 entries, and counting! Dec 28, 2018 · The simplest solution would be: let str = '\t\n\r this \n \t \r is \r a \n test \t \r \n'; str = str. Nov 4, 2013 · Breaking down this regex: \/ match a slash ( start of a captured group within the match [^\/] match a non-slash character + match one of more of the non-slash characters ) end of the captured group \/? allow one optional / at the end of the string $ match to the end of the string The [1] then retrieves the first captured group within the match Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. btojrb ixhl ejxk vcqt txiyic agdutgy ihi mobljgwm gknla cfwrpvq zjii gtmdmr riqy ebel vyqcdjy