This can be used for evaluating strings containing Python values without the need to parse the values oneself. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Python: How to add single quotes to a long list, How do I add quotes to list element which contain / in python. What is Wario dropping at the end of Super Mario Land 2 and why. I think it would make a valuable addition to the answer. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Can my creature spell be countered if I cast a split second spell after it? Is it possible to control it remotely? Thanks for contributing an answer to Stack Overflow! Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? Comma-separated string to list in Python First of all, we will store a comma-separated string in a variable comma_string. Futuristic/dystopian short story about a man living in a hive society trying to meet his dying mother. What were the poems other than those by Donne in the Melford Hall manuscript? How a top-ranked engineering school reimagined CS curriculum (Ep. Not the answer you're looking for? @timgeb, Python list of strings to 1 string separated by comma & quotes (, & "). :param string: A string to be split into chunks :param separator: A separator character :param quote: A character to define beginning and end of the quoted string :return: A list of strings, one element for every chunk """ comma_separated_list = [] chunk = '' in_quotes = False for character in Connect and share knowledge within a single location that is structured and easy to search. To provide overly complex alternatives is a pointless waste of time. Connect and share knowledge within a single location that is structured and easy to search. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. This won't work if the list contains integers. I hope this is not considered Pythonic :), my (and @wim's) comment above applies to @Daniel's original answer which he replaced with the completely different, and novel, approach currently listed above. The better solution would be using itertools.imap which returns an iterator. This example is compatible with Python 3, as the other answer here used StringIO which is Python 2. Can I general this code to draw a regular polyhedron? Creating a comma separated list from IList or IEnumerable, How to convert string representation of list to a list. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Could you please tell me what why did you say The, this would still preserve the spaces inside the quotes. The only new information here is a further processing step that is, How to convert string representation of list to a list, zen of python says flat is better than nested. See screenshots below: 2. For Example : List<String> StringList = new List<String> {'1','2','3'}; and the ouput should be : By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In python, many functions, that work with lists also works with iterators (like join, sum, list). Solution by Jay Riggs is correct for the original poster's situation. . So if someone puts a call to delete everything in there, it happily will. is safer and quite Pythonic, though the resulting string will be difficult to parse if the elements can contain commas -- at that point, you need the full power of the csv module, as Douglas points out in his answer.). Why typically people don't use biases in attention mechanism? Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? Is it possible to control it remotely? It isn't to everyone's taste, but I like to create helper extensions for these kinds of tasks, and put them into a "utility" namespace: Using string interpolation. If we are sure single quotes will be start and end of string then we can remove using string method for (String strFinal: str.split (',')) { System.debug ('===Final val==='+strFinal.removeStart ('\'').removeEnd ('\'')); } Share Improve this answer Follow edited Apr 12, 2016 at 7:32 answered Apr 11, 2016 at 13:49 Ratan Paul 22.3k 12 48 92 If total energies differ across different software, how do I decide which software to use? You can use this function to convert comma-delimited single character strings to list- def stringtolist (x): mylist= [] for i in range (0,len (x),2): mylist.append (x [i]) return mylist Share Improve this answer Follow edited Jan 30, 2019 at 2:43 answered Jan 30, 2019 at 1:55 Hemang Jalali 11 2 Add a comment 0 python string list to list ast.listeral_eval, Converting a string that represents a list, into an actual list object. my_list = [1, baz, ctrl, 4 ]) and throws a NameError message. Since you are appending the returned list to newlist, you are getting a list of lists. Converting a list into comma-separated string with "and" before the last item - Python 2.7. How do I parse a string to a float or int? Generate points along line, specifying the origin of point generation in QGIS. You remove all whitespacing,bracketing and value_separators (provided they are not part of the values you want to extract, else make the regex more complex). To learn more, see our tips on writing great answers. What does the power set mean in the construction of Von Neumann universe? Given a string that is a sequence of several values separated by a commma: If you want to convert it to a tuple, just. I tried to use the join function, but i didn't manage to do it properly: On whose turn does the fright from a terror dive end? A quick but not effective solution on Jupyter NB's is, highlighting your list elements and pressing the single quote on your keyboard. How about saving the world? Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Making statements based on opinion; back them up with references or personal experience. update: I got it to work as below, but I would prefer a cleaner way if possible. Correction for Craigs answer above for a 2-element list (Im not allowed to comment): I cannot take full credit but if you want succinct -- I modified RoadieRich's answer to use f-strings and also made it more concise. To learn more, see our tips on writing great answers. I have a list of ints and want to create a comma-separated string. This solution is simpler than some I read in the previous answers, but it requires to match all features of the list. Which one to choose? You can do this in one line for most basic use cases, including the one given in the original question. To learn more, see our tips on writing great answers. I like simpler an one-line code in python: It's pythonic, works for strings, numbers, None and empty string. Looking for job perks? How to output a comma delimited list in jinja python template? Python - Convert String to List - AskPython python - Split a list of strings by comma - Stack Overflow Why does Acts not mention the deaths of Peter and Paul? How to Convert Python List to String - Definitive Guide How do I get the number of elements in a list (length of a list) in Python? Would you ever say "eat pig" instead of "eat pork"? Just sayin' You are usually better off using the tools in the library for csv. Just some data with apostrophe is all I wanted. If you are running a GNU coreutils based system (i.e. To learn more, see our tips on writing great answers. The eval is dangerous - you shouldn't execute user input. This question also assumes you are only working with numbers: How to convert list into string with quotes in python. How about saving the world? Not the answer you're looking for? Using generator expressions has the benefit of also producing an iterator but saves importing itertools. Here is a alternative solution in Python 3.0 which allows non-string list items: NOTE: The space after comma is intentional. How do I replace all occurrences of a string in JavaScript? In this example, the list element baz would throw: I tried this question on SO, but it only works if your list already contains strings: Join a list of strings in python and wrap each string in quotation marks. Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? Is it possible to control it remotely? Find centralized, trusted content and collaborate around the technologies you use most. data = ['a, b', 'c', 'd, e'] print ( [value.split (',') for value in data]) This gives us ['a', ' b'], ['c'], ['d', ' e']] To get rid of those extra whitespaces we can modify the function by using map to apply str.strip to each resulting element of the inner . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How can I convert a comma-separated string to an array? Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? python - Split string on commas but ignore commas within double-quotes I'd suggest using the csv module with StringIO. Are double and single quotes interchangeable in JavaScript? +1. split - How to convert comma-delimited string to list in Python? But I have a string for items separated by comma. Asking for help, clarification, or responding to other answers. Why does Acts not mention the deaths of Peter and Paul? i want to sort the list of objects based on the attribute of that object without considering the special characters. NIntegrate failed to converge to prescribed accuracy after 9 \ recursive bisections in x near {x}. - Paulo Scardine Jul 3, 2014 at 15:32 Add a comment 3 Answers Sorted by: 14 str.join only accepts an iterable of strings, not one of integers. To convert a comma-separated string to a list of integers: Use the str.split () method to split the string on each occurrence of a comma.
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