How a top-ranked engineering school reimagined CS curriculum (Ep. Assuming that all your inputs are lists and that the double quotes in the input actually don't matter, this can be done with a simple regexp replace. Is there something better about this compared to, Python: How to add single quotes to a long list, Join a list of strings in python and wrap each string in quotation marks, How to convert list into string with quotes in python. Python list of strings to 1 string separated by comma & quotes Doesn't this work? Creating comma-separated string from list [duplicate], TypeError: sequence item 0: expected string, int found. Very interesting, thank you for noting this. How to check whether a string contains a substring in JavaScript? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. When a gnoll vampire assumes its hyena form, do its HP change? 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. (The cases ['s'] and [] should be mapped to 's' and '', respectively.). How can I randomly select an item from a list? What was the actual cockpit layout and crew of the Mi-24A? However I just learned how to create extensions. If total energies differ across different software, how do I decide which software to use? Embedded hyperlinks in a thesis or research paper. How about saving the world? Not the answer you're looking for? This should be applicable to lists with any length. How can I fill out a Python string with spaces? This solution is simpler than some I read in the previous answers, but it requires to match all features of the list. How would you make a comma-separated string from a list of strings? And if you're really looking to enclose the whole thing in single quotes: This may be easier than using string.replace. String is enclosed either with single quotes or double quotes. Then use split (",") seperate by comma. Instead use list.extend method, like this, But you can simply use nested list comprehension like this. How do I create a directory, and any missing parent directories? In Python 3, it was stored in the io module.. We can use the csv.writerow() function to write the list as a comma-separated row for a CSV file in the StringIO object. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Syntax Breakdown of the split () Method in Python The general syntax for the split () method is the following: What were the most popular text editors for MS-DOS in the 1980s? Looking for job perks? Find centralized, trusted content and collaborate around the technologies you use most. 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. How to convert list into string with quotes in python Why is it string.join(list) instead of list.join(string)? Thanks for contributing an answer to Stack Overflow! To learn more, see our tips on writing great answers. Join list of string to comma separated and enclosed in single quotes. Every item in string to item in list in Python, Converting a Comma Separated String to a List of Strings in Python, How to append multiple strings from a single input into a list in Python, How do you explicitly convert a string to a list. How do I make the first letter of a string uppercase in JavaScript? list_of_strings = ["A", "List", "Of", "Strings"]. I have created this function to parse the list: Is there a neater way to achieve this? Has depleted uranium been considered for radiation shielding in crewed spacecraft beyond LEO? "Least Astonishment" and the Mutable Default Argument. Find centralized, trusted content and collaborate around the technologies you use most. Not the answer you're looking for? letters = ['a', 'b', 'c', 'd'] string = ','.join (letters) print (string) After running the preceding code, we get the following output: The join () method creates a string where the individual list items are separated by a given separator character. How to convert my dictionary query to properly formatted string without getting garbage? 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: public static class . What does "up to" mean in "is first up to launch"? Why did US v. Assange skip the court of appeal? :) You are right. This is a perfectly valid answer. If you have nested lists, it does get a bit more annoying. Connect and share knowledge within a single location that is structured and easy to search. rev2023.4.21.43403. testsample: "['21',"foo" '6', '0', " A"]". Here is a alternative solution in Python 3.0 which allows non-string list items: NOTE: The space after comma is intentional. I want to convert it to one new string looking like: new_string=""" "A", "List", "Of", "Strings" """, ( How about you just take the result of your computation, and add single quotes around it as a second step: How to convert list into string with quotes in python. So if someone puts a call to delete everything in there, it happily will. @SerialDownvoter: Can you please respond on posts that you downvote? Then I'm using readlines () converted to list of strings. Use this tool to convert a column into a Comma Separated List. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. split () splits a string into a list. Counting and finding real solutions of an equation. On whose turn does the fright from a terror dive end? How can I split this text properly in Python? my_list = [1, baz, ctrl, 4 ]) and throws a NameError message. 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. If you're merely trying to educate about other features of the language when there is already a viable answers, you're doing the same thing you downvoted me for. Making statements based on opinion; back them up with references or personal experience. enjoy another stunning sunset 'over' a glass of assyrtiko. It uses the solution by RootTwo given in a comment on that answer: It's generally bad practice to use + when combining strings, as it is generally slow. Not the answer you're looking for? This is superfluous. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I make the first letter of a string uppercase in JavaScript? 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" """ So, following all the answers I decided to time the most common methods: You can save yourself the .strip() function by just slicing off the first and last characters from the string representation of the list (see the third line below): And with pure Python - not importing any libraries: This is another solution if you don't want to import any library: The caveat to this method is that it doesn't work if you have comma inside your string for example if your input is. Not the answer you're looking for? How do I read / convert an InputStream into a String in Java? A quick but not effective solution on Jupyter NB's is, highlighting your list elements and pressing the single quote on your keyboard. Which one to choose? Why did US v. Assange skip the court of appeal? To tackle the problem of the comma separation we can split each string in the list. How about saving the world? Futuristic/dystopian short story about a man living in a hive society trying to meet his dying mother, English version of Russian proverb "The hedgehogs got pricked, cried, but continued to eat the cactus". You need to use the, python how to form list to comma separated string for with correct quote for sql where in statement. How is white allowed to castle 0-0-0 in this position? For eg. Both the ways (single or double quotes) are correct depending upon the requirement. rev2023.4.21.43403. Stepwise explanation: Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, How to convert a list of longs into a comma separated string in python, How to remove unwanted commas from a python list, How to convert list into different format using f{} and add string between them, Solving techniques for iterating over a list and changing the output after every word. The file 'test.csv' that the csv module produces: Note the quoting around "Header\n1" and "H, 4"` in the file so that the csv is correctly decoded in the future. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? What's the cheapest way to buy out a sibling's share of our parents house if I have no cash and want to pay less than the appraised value? How do I make a flat list out of a list of lists? I have a list of strings: comma separated string to list in Python - CodeSpeedy Python Join List [Ultimate Guide] - Be on the Right Side of Change Execute SQL for different where clause from Python. - 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. How do I parse a string to a float or int? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. rev2023.4.21.43403. Thanks for contributing an answer to Stack Overflow! rev2023.4.21.43403. 2. "Signpost" puzzle from Tatham's collection, Literature about the category of finitary monads, Limiting the number of "Instance on Points" in the Viewport. The issue is, I usually finish writing my list, and then go in and add single quotes to every element in the list. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? Connect and share knowledge within a single location that is structured and easy to search. What woodwind & brass instruments are most air efficient? Making statements based on opinion; back them up with references or personal experience. Looking for job perks? python - How would you make a comma-separated string from a list of I'd like to split the string on commas; however, in the case where something is inside double quotation marks, I need it to both ignore commas and strip out the quotation marks. This can be used for evaluating strings containing Python values without the need to parse the values oneself. Literature about the category of finitary monads. Converting a list into comma-separated string with "and" before the Unwanted whitespaces in the list elements may be removed in this way: Inspired from some of the answers above that work with base Python packages I compared the performance of a few (using Python 3.7.3): I was disappointed to see what I considered the method with the worst readability was the method with the best performance there are trade-offs to consider when going with the most readable option for the type of workloads I use Python for I usually value readability over a slightly more performant option, but as usual it depends. linux - Turning separate lines into a comma separated list with quoted Effect of a "bad grade" in grad school applications. In python, many functions, that work with lists also works with iterators (like join, sum, list). Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? string - Python: How to add single quotes to a long list - Stack Overflow Connect and share knowledge within a single location that is structured and easy to search. How to convert comma separated string to list that contains comma in Creating a comma separated list from IList or IEnumerable, Convert a String representation of a Dictionary to a dictionary. Another way to convert a string to a list is by using the split () Python method. Asking for help, clarification, or responding to other answers. I think there's an XY problem here. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. main.py. Copy your column of text in Excel. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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). How do I clone a list so that it doesn't change unexpectedly after assignment? Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? How to convert comma-delimited string to list in Python? And if the list contains non-string types (such as integers, floats, bools, None) then do: Why the map/lambda magic? Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? As per @PaulKenjora's comment, it works for, In my case I had to replace single quotes with double quotes in initial string to ensure it works. 1. Not the answer you're looking for? Paste your comma separated list wherever you wish. To summarize, converting python List to String is one of the commonly used functionality. Counting and finding real solutions of an equation, Generate points along line, specifying the origin of point generation in QGIS. How a top-ranked engineering school reimagined CS curriculum (Ep. How do I concatenate two lists in Python? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. It's clear and is the only answer that actually meets the requirements of the OP. Is it possible to control it remotely? Is there a generic term for these trajectories? How do I split a list into equally-sized chunks? Did the drapes in old theatres actually say "ASBESTOS" on them? @EeroAaltonen I updated My answer, Thanks for pointing me to right. I want to know the quickest way to add single quotes to each element in a Python list created by hand. '*len(record_hash)), record_hash). Why typically people don't use biases in attention mechanism? What is the difference between String and string in C#? If you know that your lists only contain quoted strings, this pyparsing example will give you your list of stripped strings (even preserving the original Unicode-ness). mylist = [1,2,3]. 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. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? Find centralized, trusted content and collaborate around the technologies you use most. How is white allowed to castle 0-0-0 in this position? 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 you still use Commanders Strike if the only attack available to forego is an attack against an ally? How a top-ranked engineering school reimagined CS curriculum (Ep. How about saving the world? If you are looking to append to a list, try this: In the case of integers that are included at the string, if you want to avoid casting them to int individually you can do: It is called list comprehension, and it is based on set builder notation. I have a list of ints and want to create a comma-separated string. The accepted answer is simple, direct and clearly the best solution. Per comment below, this is dangerous as it simply runs whatever python is in the string. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? Find centralized, trusted content and collaborate around the technologies you use most. rev2023.4.21.43403. Thanks for contributing an answer to Stack Overflow! Python, How to convert string representation of list to a list, How to read a text file into a list or an array with Python. Looking for job perks? How about saving the world? it is also a duplicate answer. Futuristic/dystopian short story about a man living in a hive society trying to meet his dying mother, Ethical standards in asking a professor for reviewing a finished manuscript and publishing it together. But if you want to show off with logic :) : Unless I'm missing something, ','.join(foo) should do what you're asking for. Looking for job perks? Comma-separated string to list in Python First of all, we will store a comma-separated string in a variable comma_string. How do I make the first letter of a string uppercase in JavaScript? How To Convert Python List to Comma Separated String Python PostgreSQL Statement Problem psycopg2 cursor.execute(Table Union). Here is a alternative solution in Python 3.0 which allows non-string list items: >>> alist = ['a', 1, (2, 'b')] a standard way >>> ", ".join (map (str, alist)) "a, 1, (2, 'b')" the alternative solution >>> import io >>> s = io.StringIO () >>> print (*alist, file=s, sep=', ', end='') >>> s.getvalue () "a, 1, (2, 'b')" What is scrcpy OTG mode and how does it work? Single and Double Quotes | Python - GeeksforGeeks Can my creature spell be countered if I cast a split second spell after it? Creating a comma separated list from IList or IEnumerable. Checks and balances in a 3 branch market economy. How a top-ranked engineering school reimagined CS curriculum (Ep. How do I parse a string to a float or int? What does the power set mean in the construction of Von Neumann universe? How do I make a flat list out of a list of lists? Python: how to add a list to an existing txt file and it has to include the commas in the text file? In that case I would suggest looking at the csv module in the standard library: my_list may contain any type of variables. To learn more, see our tips on writing great answers. Ethical standards in asking a professor for reviewing a finished manuscript and publishing it together. On whose turn does the fright from a terror dive end? Looking for job perks? Generic Doubly-Linked-Lists C implementation. Can I general this code to draw a regular polyhedron? Asking for help, clarification, or responding to other answers. To learn more, see our tips on writing great answers. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? If total energies differ across different software, how do I decide which software to use? "Signpost" puzzle from Tatham's collection. It is a bit perl-y, but it works like a charm. How to concatenate (join) items in a list to a single string. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? From the docs: Return a string which is the concatenation of the strings in the iterable iterable. The string or node provided may only consist of the following Python literal structures: strings, bytes, numbers, tuples, lists, dicts, sets, booleans, None and Ellipsis. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? Looking for job perks? VASPKIT and SeeK-path recommend different paths. The below logic is used to convert so that list of strings such that each string is within quotes and comma separated >>> record_hash ['AAA', 'BBB', 'CCC'] >>> t="'"+&qu. What is the python "with" statement designed for? . Step-by-step approach: Import the re module. split - How to convert comma-delimited string to list in Python? But Would you ever say "eat pig" instead of "eat pork"? 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. 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 Might as well round out the solutions with a recursive example. Embedded hyperlinks in a thesis or research paper, Checks and balances in a 3 branch market economy, How to create a virtual ISO file from /dev/sr0. How to remove an element from a list by index, Creating a comma separated list from IList or IEnumerable. my_list), assigning it to list brackets, and then populating the list with elements, surrounded by single quotes: I want to know if there is a quicker way to make a list, however. I would like to provide a more intuitive patterning solution with regex. To learn more, see our tips on writing great answers. I think you should point out that unlike the other solutions on this page, you quote strings as well. Are double and single quotes interchangeable in JavaScript? Given a string that is a sequence of several values separated by a commma: If you want to convert it to a tuple, just. Python knows a number of compound data types, used to group together other values. How about saving the world? How do I split the definition of a long string over multiple lines? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The more items you have to flatten chain does it a bit more efficiently: I think this was the easiest way (thanks to a friend who helped with this). 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. If total energies differ across different software, how do I decide which software to use? I think it would make a valuable addition to the answer. How do I get the number of elements in a list (length of a list) in Python? Code: Let's have a look at the code. This question is just for educational purposes. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. Since you are appending the returned list to newlist, you are getting a list of lists. How a top-ranked engineering school reimagined CS curriculum (Ep. 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. 1. How to concatenate items in a list to a single string? create_list is building a list of all the items in the str ing form of data. Looking for job perks? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Not the answer you're looking for? Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? What's the cheapest way to buy out a sibling's share of our parents house if I have no cash and want to pay less than the appraised value? Connect and share knowledge within a single location that is structured and easy to search. Thus, you need to convert the items in x into strings. Can my creature spell be countered if I cast a split second spell after it? The better solution would be using itertools.imap which returns an iterator. A minor scale definition: am I missing something? You can always encode quotes before you build your string. 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. This can also be written more compactly as: wrap the result of your commands in quotes? Just sayin' You are usually better off using the tools in the library for csv. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I was wondering what the simplest way is to convert a string representation of a list like the following to a list: Even in cases where the user puts spaces in between the commas, and spaces inside of the quotes, I need to handle that as well and convert it to: I know I can strip spaces with strip() and split() and check for non-letter characters. Connect and share knowledge within a single location that is structured and easy to search. Why does python not have a professional function to perform this operation? Using the JOIN () method is the recommended method to convert the List to String. Can I general this code to draw a regular polyhedron? How to convert comma-delimited string to list in Python? but I need to replace the inner quotes with 2 single quotes, like this: 'test''s','test','test''s more'. 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.