Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Making statements based on opinion; back them up with references or personal experience. How about saving the world? The focus of my answer was purely on, This shouldn't have a downvote. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Python converts from strings of word into list of word. @wim agree, it's pretty bad. Short story about swapping bodies as a job; the person who hires the main character misuses his body. Cautionary note: this could potentially be dangerous if any of the strings inside list has a comma in between. Would you ever say "eat pig" instead of "eat pork"? If user should only enter list of numeric, I think this is the safest way to go to stop malicious intend user. Generate points along line, specifying the origin of point generation in QGIS. "Signpost" puzzle from Tatham's collection, Literature about the category of finitary monads, Limiting the number of "Instance on Points" in the Viewport. python - Split string on commas but ignore commas within double-quotes This solution doesn't fulfill the requirements of not adding extra comma for empty string and adding a 'None' with NoneType. Given a string that is a sequence of several values separated by a commma: If you want to convert it to a tuple, just. json.loads() and json.dumps() from json package is the equivalent way of javascript JSON.parse() and JSON.stringify() so use json solution to keep life simpler. How to convert a sequence of integers into a monomial, Limiting the number of "Instance on Points" in the Viewport. @jmanning2k using a list comprehension has the downside of creating a new temporary list. What would be your preferred way to concatenate strings from a sequence such that between every two consecutive pairs a comma is added. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Python - split list element containing character (e.g. Generate points along line, specifying the origin of point generation in QGIS, Counting and finding real solutions of an equation. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. mylist = [1,2,3]. To learn more, see our tips on writing great answers. str.join only accepts an iterable of strings, not one of integers. How to concatenate items in a list to a single string? Beginner kit improvement advice - which lens should I consider? rev2023.4.21.43403. Does Python have a string 'contains' substring method? Comma-separated string to list in Python First of all, we will store a comma-separated string in a variable comma_string. In Python 2, it can be imported directly using the StringIO module. How is white allowed to castle 0-0-0 in this position? It's short and satisfies the requirements. Given a List of String, the task is to convert the List to a comma separated String in Java. What is the python "with" statement designed for? Well but what to do if the List does not have quotes? How to convert comma-separated String to List? rev2023.4.21.43403. Another way to convert a string to a list is by using the split () Python method. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, List of tuples to a string with spaces and punctuations in the right places. From the docs: Return a string which is the concatenation of the strings in the iterable iterable. Python list of strings to 1 string separated by comma & quotes (, & ") Asked 4 years, 3 months ago Modified 4 years, 3 months ago Viewed 825 times 0 I have a list of strings: list_of_strings = ["A", "List", "Of", "Strings"] I want to convert it to one new string looking like: new_string=""" "A", "List", "Of", "Strings" """ Parabolic, suborbital and ballistic trajectories all follow elliptic paths. It is not capable of evaluating arbitrarily complex expressions, for example involving operators or indexing. Futuristic/dystopian short story about a man living in a hive society trying to meet his dying mother. Is there a generic term for these trajectories? This avoid the result 'A,,,D,E'. Is it possible to control it remotely? Instead use list.extend method, like this for word in lines: newlist.extend (word.split (",")) But you can simply use nested list comprehension like this Beginner kit improvement advice - which lens should I consider? So using split (',') creates problems. Would you ever say "eat pig" instead of "eat pork"? Can my creature spell be countered if I cast a split second spell after it? The StringIO object is similar to a file object but in memory to work with texts. python - Convert list to a string with double quotes - Code Review main.py. If total energies differ across different software, how do I decide which software to use? Using the JOIN () method is the recommended method to convert the List to String. This question also assumes you are only working with numbers: How to convert list into string with quotes in python. Hi, is there a way where I can let string literals remain as strings in this? How to check whether a string contains a substring in JavaScript? rev2023.4.21.43403. It's worth noting that this answer was posted over 13 years ago. I think there's an XY problem here. You need to use list.extend instead of list.append. How do I split a list into equally-sized chunks? rev2023.4.21.43403. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. What was the purpose of laying hands on the seven in Acts 6:6. To learn more, see our tips on writing great answers. In case if there are numbers in the list, you could use list comprehension: ",".join(l) will not work for all cases. Generate points along line, specifying the origin of point generation in QGIS, Adding EV Charger (100A) in secondary panel (100A) fed off main (200A). This solution is simpler than some I read in the previous answers, but it requires to match all features of the list. What woodwind & brass instruments are most air efficient? Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Creating a comma separated list from IList or IEnumerable. My phone's touchscreen is damaged. @timgeb, Python list of strings to 1 string separated by comma & quotes (, & "). Find centralized, trusted content and collaborate around the technologies you use most. If the list is not going to contain numbers, we can use this simpler variation: Also this solution doesn't create a new list, but uses an iterator, like @Peter Hoffmann pointed (thanks). Word order in a sentence with two clauses, Checks and balances in a 3 branch market economy, Tikz: Numbering vertices of regular a-sided Polygon, English version of Russian proverb "The hedgehogs got pricked, cried, but continued to eat the cactus", How to create a virtual ISO file from /dev/sr0. Is it safe to publish research papers in cooperation with Russian academics? Are double and single quotes interchangeable in JavaScript? To learn more, see our tips on writing great answers. What does "up to" mean in "is first up to launch"? I would say the csv library is the only sensible option here, as it was built to cope with all csv use cases such as commas in a string, etc. >>> Obviously it gets more complicated if you need to quote/escape commas etc in the values. string - Python: How to add single quotes to a long list - Stack Overflow See screenshots below: 2. Just some data with apostrophe is all I wanted. You can use either map or a list comprehension: If you are dealing with a csv file that is something other than the trivial example here, please do remember you are better off using the csv module to read and write csv, since CSV can be surprisingly complex. Making statements based on opinion; back them up with references or personal experience. @SerialDownvoter: Can you please respond on posts that you downvote? Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? Why did US v. Assange skip the court of appeal? How do I make the first letter of a string uppercase in JavaScript? Since you are appending the returned list to newlist, you are getting a list of lists. Lists might contain items of different types, but usually the items all have the same type. Then you split the cleaned string on single or double quotes and take the non-empty values (or odd indexed values, whatever the preference). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Note the embedded comma in 'H, 4' and the embedded new line in 'Header\n1' that may trip up efforts to decode if not properly encoded. 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.). Generic Doubly-Linked-Lists C implementation. Asking for help, clarification, or responding to other answers. This usually happens when you load list stored as string to CSV. 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. Note also that the output is now a list of Unicode strings, you didn't specify that you needed that, but it seems to make sense given Unicode input. Looking for job perks? VASPKIT and SeeK-path recommend different paths. Here is a alternative solution in Python 3.0 which allows non-string list items: NOTE: The space after comma is intentional. This does not work if you have a list of words that you want to turn to strings, however; Python thinks you are calling variables (e.g. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence. And if the list contains non-string types (such as integers, floats, bools, None) then do: Why the map/lambda magic? Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? Connect and share knowledge within a single location that is structured and easy to search. For Example : List<String> StringList = new List<String> {'1','2','3'}; and the ouput should be : What was the actual cockpit layout and crew of the Mi-24A? I tried to use the join function, but i didn't manage to do it properly: It works with integers, strings (with 'crazy characters' as well) and it's just 1 line of code. To learn more, see our tips on writing great answers. Does methalox fuel have a coking problem at all? - 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. On whose turn does the fright from a terror dive end? Select a blank cell adjacent to the list's first data, for instance, the cell C1, and type this formula =CONCATENATE (TRANSPOSE (A1:A7)&",") ( A1:A7 is the column you will convert to comma serrated list, "," indicates the separator you want to separate the list). Because it lacks of the spaces before and after the string? Find centralized, trusted content and collaborate around the technologies you use most. Instead use list.extend method, like this, But you can simply use nested list comprehension like this. Generate points along line, specifying the origin of point generation in QGIS. [4 of B, 1 of G]. What is the difference between String and string in C#? python how to form list to comma separated string for with correct Did the drapes in old theatres actually say "ASBESTOS" on them? VASPKIT and SeeK-path recommend different paths. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. How to convert my dictionary query to properly formatted string without getting garbage? Careful though, splitting an empty string does not return what one might have expected: Hope It will solve issue but please add explanation of your code with it so user will get perfect understanding which he/she really wants. Thanks. How a top-ranked engineering school reimagined CS curriculum (Ep. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, This solution works only with lists, don't handle the case of empty or one-element lists, and uses, @Daniel: don't disagree at all. 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.