Linux), you can omit the trailing '-'. 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. When a gnoll vampire assumes its hyena form, do its HP change? 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. The junkers variable contains a compiled regexp (for speed) of all characters we don't want, using ] as a character required some backslash trickery. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To do a Join From List to a String separated with commas we need to do the following: String someStringVar = String.join (SomeList, ','); But If I want to make a Join with Comma and Quotes? If you are running a GNU coreutils based system (i.e. Generic Doubly-Linked-Lists C implementation. Using generator expressions has the benefit of also producing an iterator but saves importing itertools. It will not handle escape sequences in the strings, or a different quote type. How do I make a flat list out of a list of lists? Would you ever say "eat pig" instead of "eat pork"? This is the ugliest line of python code I've ever seen. Syntax Breakdown of the split () Method in Python The general syntax for the split () method is the following: Not the answer you're looking for? English version of Russian proverb "The hedgehogs got pricked, cried, but continued to eat the cactus", Counting and finding real solutions of an equation, Tikz: Numbering vertices of regular a-sided Polygon. If you have nested lists, it does get a bit more annoying. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. rev2023.4.21.43403. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If you have 2.6 or newer, use ast instead of eval: If you're on an older version of Python, you can get very close to what you want with a simple regular expression: This isn't as good as the ast solution, for example it doesn't correctly handle escaped quotes in strings. It works with integers, strings (with 'crazy characters' as well) and it's just 1 line of code. How to convert list into string with quotes in python How about saving the world? What are you trying to achieve by building this string? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Making statements based on opinion; back them up with references or personal experience. I have a string for items separated by comma. What was the purpose of laying hands on the seven in Acts 6:6. 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. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. This question also assumes you are only working with numbers: How to convert list into string with quotes in python. Thanks for contributing an answer to Stack Overflow! main.py. This can be used for evaluating strings containing Python values without the need to parse the values oneself. Ignoring Commas in Quotes When Splitting a Comma-separated String Find centralized, trusted content and collaborate around the technologies you use most. You take, the list comprehension seems to bee slower than the. There exists an element in a group whose order is at most the number of conjugacy classes, Tikz: Numbering vertices of regular a-sided Polygon. Use a list comprehension to iterate over the list of strings. How to use python change a string into list cut by ','? Literature about the category of finitary monads. Find centralized, trusted content and collaborate around the technologies you use most. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Example: str_inp = "Hello,from,AskPython' To convert these types of strings to a list of elements, we have some other ways of performing the task. In that case I would suggest looking at the csv module in the standard library: my_list may contain any type of variables. How to pad a comma delimited list of items with single quotes Thanks. Python String to Array - How to Convert Text to a List - FreeCodecamp Would you ever say "eat pig" instead of "eat pork"? Not the answer you're looking for? Not the answer you're looking for? Use this tool to convert a column into a Comma Separated List. String is enclosed either with single quotes or double quotes. Looking for job perks? Is there a generic term for these trajectories? 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. Separator characters inside the quotes are ignored. Making statements based on opinion; back them up with references or personal experience. On whose turn does the fright from a terror dive end? This can also be written more compactly as: wrap the result of your commands in quotes? How do I create a directory, and any missing parent directories? Find centralized, trusted content and collaborate around the technologies you use most. if last: is just a pythonic way of checking if last is empty. Looking for job perks? Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? Why did US v. Assange skip the court of appeal? I would like to provide a more intuitive patterning solution with regex. What is scrcpy OTG mode and how does it work? Connect and share knowledge within a single location that is structured and easy to search. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Asking for help, clarification, or responding to other answers. Asking for help, clarification, or responding to other answers. In order to do that, we will use a method split (). Note that this also removes spaces from inside entries u'["oh no"]' ---> [u'ohno']. (The JSON method demands double-quotes, but does process escape sequences.) Python program to input a comma separated string - GeeksForGeeks Which one to choose? Paste the column here (into the leftmost textbox) Copy your comma separated list from the rightmost textbox. Has depleted uranium been considered for radiation shielding in crewed spacecraft beyond LEO? 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. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Just some data with apostrophe is all I wanted. This is the most Javascript answer ever. Does methalox fuel have a coking problem at all? rev2023.4.21.43403. But if you want to show off with logic :) : Unless I'm missing something, ','.join(foo) should do what you're asking for. ), result_set = conn.execute("SELECT * FROM slack_jira WHERE severity='MEDIUM' and id IN (%s)" % ','.join('? Does Python have a string 'contains' substring method? If total energies differ across different software, how do I decide which software to use? You need to use the, python how to form list to comma separated string for with correct quote for sql where in statement. How can I split this text properly in Python? How a top-ranked engineering school reimagined CS curriculum (Ep. What were the most popular text editors for MS-DOS in the 1980s? How about saving the world? How to convert comma-delimited string to list in Python? What are the advantages of running a power tool on 240 V vs 120 V? 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" """ wasn't aware of the eval danger when answer was posted. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to concatenate items in a list to a single string? In case if there are numbers in the list, you could use list comprehension: ",".join(l) will not work for all cases. The below logic is used to convert so that list of strings such that each string is within quotes and comma separated, This logic is passed to below logic to form the SQL statement to form the where column in condition, The conn.set_trace_callback(print) prints this value which is causing to fail the fetch the record as it contains one single record, what is needed is to form the correct SQL statement to be created with proper escape for where column in (? To learn more, see our tips on writing great answers. How to convert list into string with quotes in python Ask Question Asked 10 years ago Modified 1 year ago Viewed 24k times 8 i have a list and want it as a string with quotes mylist = [1,2,3] require O/P as myString = "'1','2','3'" i tried mystring = '\',\''.join (mylist) it gave me result as mystring = "1','2','3" Is it possible to control it remotely? The accepted answer is simple, direct and clearly the best solution. The json.loads(your_data) function can be used to convert it to a list. Which was the first Sci-Fi story to predict obnoxious "robo calls"? I want to know the quickest way to add single quotes to each element in a Python list created by hand. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? 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. 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). Would you ever say "eat pig" instead of "eat pork"? Generic Doubly-Linked-Lists C implementation. 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. Not the answer you're looking for? python - How to convert string representation of list to a list - Stack But it's simple, doesn't involve a dangerous eval, and might be good enough for your purpose if you're on an older Python without ast. rev2023.4.21.43403. Connect and share knowledge within a single location that is structured and easy to search. Making statements based on opinion; back them up with references or personal experience. When a gnoll vampire assumes its hyena form, do its HP change? For eg. How do I make the first letter of a string uppercase in JavaScript? Why is it string.join(list) instead of list.join(string)? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What was the actual cockpit layout and crew of the Mi-24A? python how to form list to comma separated string for with correct Execute SQL for different where clause from Python. pyparsing includes a predefined expression for comma-separated lists: >>> from pyparsing import commaSeparatedList >>> s = "1,,2'3,4'" >>> print commaSeparatedList.parseString (s).asList () ['1', '', "2'3", "4'"] Hmm, looks like you have a typo in your data, missing a comma after the 2: Each word will be an individual list item. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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. Connect and share knowledge within a single location that is structured and easy to search. How do I merge two dictionaries in a single expression in Python? How about saving the world? A minor scale definition: am I missing something? My phone's touchscreen is damaged. If this is not what you wanted, the regexp needs to be souped up a bit. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? How about saving the world? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. How do I concatenate two lists in Python? Because it lacks of the spaces before and after the string? Single and Double Quotes | Python - GeeksforGeeks ', referring to the nuclear power plant in Ignalina, mean? rev2023.4.21.43403. "Least Astonishment" and the Mutable Default Argument. Python knows a number of compound data types, used to group together other values. I like simpler an one-line code in python: It's pythonic, works for strings, numbers, None and empty string. And so you can change it to: def create_list (data): return list (str (data)) I find it easier to read create_command if you merge some of the lines together: 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. @wim agree, it's pretty bad. This should be applicable to lists with any length. What does "up to" mean in "is first up to launch"? Not the answer you're looking for? Connect and share knowledge within a single location that is structured and easy to search. str.join only accepts an iterable of strings, not one of integers. Beginner kit improvement advice - which lens should I consider? What woodwind & brass instruments are most air efficient? To learn more, see our tips on writing great answers. Problem Statement Suppose we need to split the following comma-separated input: String input = "baeldung,tutorial,splitting,text,\"ignoring this comma,\""; How do I make a flat list out of a list of lists? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. How can I randomly select an item from a list? Examples: Input: List<String> = ["Geeks", "ForGeeks", "GeeksForGeeks"] Output: "Geeks, For, Geeks" Input: List<String> = ["G", "e", "e", "k", "s"] Output: "G, e, e, k, s" Approach: This can be achieved with the help of join () method of String as follows. I think you should point out that unlike the other solutions on this page, you quote strings as well. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? How to convert comma-separated String to List? The comma-separated values can be in any order. my_list = [1, baz, ctrl, 4 ]) and throws a NameError message. Creating a comma separated list from IList or IEnumerable, How to convert string representation of list to a list. 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. 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. It's worth noting that this answer was posted over 13 years ago. Thus, you need to convert the items in x into strings. How would you make a comma-separated string from a list of strings? When there are 1+ items in the list (if not, just use the first element): Edit: If you need an Oxford comma (didn't know it even existed!) Did the drapes in old theatres actually say "ASBESTOS" on them? comma separated string to list in Python - CodeSpeedy Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. :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 So using split (',') creates problems. How can I convert this string to list of lists? [4 of B, 1 of G]. A minor scale definition: am I missing something? Convert string representation of list to list in Python. How To Convert Python List to Comma Separated String How can I make a dictionary (dict) from separate lists of keys and values? 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. This can be used for evaluating strings containing Python values without the need to parse the values oneself. Python 3.7. string - Python: How to add single quotes to a long list - Stack Overflow I have two stored sting variable I need to concat into a different variable for an api get request. Connect and share knowledge within a single location that is structured and easy to search. python string list to list ast.listeral_eval, Converting a string that represents a list, into an actual list object. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? 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 . Connect and share knowledge within a single location that is structured and easy to search. Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? Join list of string to comma separated and enclosed in single quotes By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How do I read / convert an InputStream into a String in Java? But the code was getting very kludgy. 3. An Informal Introduction to Python When a gnoll vampire assumes its hyena form, do its HP change? My two cents. Find centralized, trusted content and collaborate around the technologies you use most. 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. I have a list of ints and want to create a comma-separated string. To tackle the problem of the comma separation we can split each string in the list. Convert a comma-separated String to a List in Python Not the answer you're looking for? The most versatile is the list, which can be written as a list of comma-separated values (items) between square brackets. This solution doesn't fulfill the requirements of not adding extra comma for empty string and adding a 'None' with NoneType. Ethical standards in asking a professor for reviewing a finished manuscript and publishing it together, How to convert a sequence of integers into a monomial. You can always encode quotes before you build your string. 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. It also will only process a flat list of strings; the other approaches can handle complex nested data structures. Very interesting, thank you for noting this. Are double and single quotes interchangeable in JavaScript? 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. Is it possible to control it remotely? Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? 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 . Which was the first Sci-Fi story to predict obnoxious "robo calls"? python - Convert list to a string with double quotes - Code Review Python - Convert String to List - AskPython How to convert comma-delimited string to list in Python? How do I parse a string to a float or int? @gangt No problem! How do I replace all occurrences of a string in JavaScript? Instead use list.extend method, like this, But you can simply use nested list comprehension like this. Code: Let's have a look at the code. To convert a Python list to a comma-separated string, you will want to use the join () method. I want to convert it to one new string looking like: new_string=""" "A", "List", "Of", "Strings" """, ( create_list is building a list of all the items in the str ing form of data. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? Not the answer you're looking for? I have created this function to parse the list: Is there a neater way to achieve this? 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?