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  • python writing a list to a file

    - by gfar90
    I need to write a list to a file in python. I know the list should be converted to a string with the join method, but since I have a tuple I got confused. I tried a lot to change my variables to strings etc, this is one of my first attempts: def perform(text): repository = [("","")] fdist = nltk.FreqDist(some_variable) for c in some_variable: repository.append((c, fdist[c])) return ' '.join(repository) but it gives me the following error: Traceback (most recent call last): File "", line 1, in qe = perform(entfile2) File "", line 14, in perform return ' '.join(repository) TypeError: sequence item 0: expected string, tuple found any ideas how to write the list 'repository' to a file? Thanks!

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  • Transforming a TXT file in a list, getting wrong

    - by Mike
    I have a txt plain file that has a list of numbers. One number per line, like: 978-972-722-649-8 978-972-722-646-7 978-972-722-627-6 978-972-722-625-2 978-972-722-594-1 etc. This list is on a file called file.txt, was created and saved on TextEdit using Western (ISO Latin 1) encoding. Now I am trying to use Applescript to read this file and transform it on a list. I have this script set myDirectory to path to desktop folder as string set myFile to myDirectory & "file.txt" try set open_file to ¬ open for access file myFile without write permission set myList to read open_file using delimiter return close access open_file on error try close access file open_file end try end try after running this script, myList contains just ONE item and this item is "97" (I suppose that is the first two numbers of the first entry). What is going on? Thanks.

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  • How to add an item to the top of a dynamic list

    - by user181318
    Like the title states, does anyone out there have a clear way to implement this type of functionality? Example: If you go to http://weewar.com, in their front page you noticed an ajax module that updates every second. However, all of the new items are added to the top of the list. My question is around that very same functionality. Does anyone have an easy and clear idea as to how one would implement this functionality? So far I have a method that initially creates the list, then another method is called in an interval that pulls the most recent data from the server.. However, I'm stuck with, how can I add the new dynamic node to the top of the list. If you can guide me to where I can find this information or give me an idea as to how I can implement this I will be very happy and grateful :) Thanks in advanced.

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  • WPF Converter to look up in generic list

    - by user310046
    I have a list of data where I keep e.g. countries with code, name and some other data. List<Country> countries = <deserialized objects from file> which consist of objects like this: public class Country { public string Code { get; set;} public string Name { get; set;} } The object which use as a DataContext may look like this: public class Address { public string StreetName{ get; set;} public string CountryCode { get; set;} } Then in my XAML I want to do something like this to show the name of the country <TextBlock Text="{Binding Path=CountryCode, Converter={StaticResource CountryNameLookupConverter}}"/> But how can I make the CountryNameLookupConverter use the countries list I read from the xml file?

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  • Filter condition not working properly on list (C#3.0)

    - by Newbie
    I have a datatable that has many NULL or " " strings. Next I am type casting the DataTable to a list . Now if I want to filter those conditions on this list and get the resultant value(without NULL or String.Empty or " " records) what should I do? My code DataTableExtensions.AsEnumerable(dt).ToList().ForEach(i => { if (i[0] != null) { if ((i[0].ToString() != string.Empty)|| (i[0].ToString() != " ")) { list = dt.AsEnumerable().ToList(); } } }); But I am getting all the records. It is not getting filtered. Using C#3.0 Please help Thanks

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  • Finding the most similar numbers across multiple lists in Python

    - by new_sysadmin
    In Python, I have 3 lists of floating-point numbers (angles), in the range 0-360, and the lists are not the same length. I need to find the triplet (with 1 number from each list) in which the numbers are the closest. (It's highly unlikely that any of the numbers will be identical, since this is real-world data.) I was thinking of using a simple lowest-standard-deviation method to measure agreement, but I'm not sure of a good way to implement this. I could loop through each list, comparing the standard deviation of every possible combination using nested for loops, and have a temporary variable save the indices of the triplet that agrees the best, but I was wondering if anyone had a better or more elegant way to do something like this. Thanks!

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  • list(of byte) to Picturebox

    - by michael
    I have a jpeg file that is being held as a list(of Byte) Currently I have code that I can use to load and save the jpeg file as either a binary (.jpeg) or a csv of bytes (asadsda.csv). I would like to be able to take the list(of Byte) and convert it directly to a Picturebox without saving it to disk and then loading it to the picturebox. If you are curious, the reason I get the picture file as a list of bytes is because it gets transfered over serial via an industrial byte oriented protocol as just a bunch of bytes. I am using VB.net, but C# example is fine too.

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  • Moving UITableView row to top of list when selected

    - by Max Kilgore
    I am sure this is an easy thing to do. I am very new to objective C (picked up a job the boss was going to outsource) and could use all the help I can get. Just point me in the right direction here. Basically what I want to set up is this: I have a list of phone numbers that expands to as many rows as needed. I have no problem populating and the list works fine, but I would like for all of the recently selected items in the list to be more easily accessible at the top. So, whenever the user "didSelectRowAtIndexPath", I would like the row to move to the top. I just KNOW this is super simple... but I haven't found the solution yet. No hurry. I am just trying to figure things out on my own. Thanks in advance!

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  • Python: Check if all dictionaries in list are empty

    - by Brant
    I have a list of dictionaries. I need to check if all the dictionaries in that list are empty. I am looking for a simple statement that will do it in one line. Is there a single line way to do the following (not including the print)? l = [{},{},{}] # this list is generated elsewhere... all_empty = True for i in l: if i: all_empty = False print all_empty Somewhat new to python... I don't know if there is a shorthand built-in way to check this. Thanks in advance.

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  • Removing item from a comma delimited string when removed from list view

    - by Yogender Siwach
    I'm using a combo box to select an item from a list of 25 items. The selected item is input in a text box in a comma delimited string. It is updating a list view and showing each item separately by breaking the comma delimited string. The text box is not visible to users but doing the work in back end. Now I want to remove any item from list view and want it so that the text box containing the comma delimited string should also change and remove that item from the string. Is it possible?

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  • sort std::list case sensitive elements

    - by Dave18
    #include <list> #include <string> using std::string; using std::list; int main() { list <string> list_; list_.push_back("C"); list_.push_back("a"); list_.push_back("b"); list_.sort(); } does sort() function sort the elements according to their character codes? I want the result here to be a b C after the sorting is done.

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  • Django Template - Convert python list into a javascript object

    - by amcashcow
    I am working on a django / python website I have a page where I want to display a table of search results The list of results is passed in to the template as normal I also want to make this list of objects accessible to the javascript code My first solution was just create another view that returned json format. But each page load required calling the query twice. So then I tried only downloading the data using the json view and printing the table using javascript. but this is also not desirable as now the presentation layer is mixed into the javascript code. is there a way to create a javascript object from the python list as the page is rendered?

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  • Determining whether a class implements a generic list in a T4 template

    - by James Hollingworth
    I'm writing a T4 template which loads some classes from an assembly, does some analysis of the classes and then generates some code. One particular bit of analysis I need to do is to determine whether the class implements a generic list. I can do this pretty simply in C#, e.g. public class Foo : List<string> { } var t = typeof(Foo); if (t.BaseType != null && t.BaseType.IsGenericType && t.BaseType.GetGenericTypeDefinition() == typeof(List<>))) Console.WriteLine("Win"); However T4 templates use the FXCop introspection engine and so you do not have access to the .net reflection API. I've spent the past couple of hours in Reflector but still can't figure it out. Does anyone have any clues about how to do this?

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  • Add list type to association

    - by teucer
    Hi All, I am using the eUML2 (Free version) plugin to draw a UML class diagram. Now, let's assume I have a class Person and a class Car. I want the class Person to have a member cars which is a List<Car>, i.e. private List<Car> cars = null. My question is how do I include this information in the class diagram? To be more precise, how do I include the type information for the List in the eUML2 association? Regards

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  • saving value selected in a list when submit button is cliked

    - by kawtousse
    Hi everyone, In my JSP I have a dropdownlist and a submit button when clicking the submit button I loose the value already selected in my list. I am using the jstl because i need to construct other table corresponding the value selected in my list.For that I must call a submit button but the problem; it reset the value selected I want to know if there is a way to save the value selected in my list even I click a submit button. I work with JSP and eclipse environment. Think you for your help.

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  • Programmatically determine the relative "popularities" of a list of items (books, songs, movies, etc

    - by Horace Loeb
    Given a list of (say) songs, what's the best way to determine their relative "popularity"? My first thought is to use Google Trends. This list of songs: Subterranean Homesick Blues Empire State of Mind California Gurls produces the following Google Trends report: (to find out what's popular now, I restricted the report to the last 30 days) Empire State of Mind is marginally more popular than California Gurls, and Subterranean Homesick Blues is far less popular than either. So this works pretty well, but what happens when your list is 100 or 1000 songs long? Google Trends only allows you to compare 5 terms at once, so absent a huge round-robin, what's the right approach? Another option is to just do a Google Search for each song and see which has the most results, but this doesn't really measure the same thing

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  • Purpose of front() and back() in assigning values in a Queue? (C++)

    - by kevin
    I have declared: queue<int, list<int> > Q After a series of calls: Q.push(37); Q.pop(); Q.push(19); Q.push(3); Q.push(13); Q.front(); Q.push(22); Q.push(8); Q.back(); I get: 19-3-13-22-8-NULL What I don't get is what the calls to Q.front() and Q.back() do. From what I understand, they return a reference to the first or last elements respectively, but I dont see how my list would be any different had those calls not been made. Do they have any effect? Sorry if this seems trivial, but I'm trying to figure out of those calls have a purpose, or of my professor is just trying to screw with me.

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  • List files starting with a specific name using java

    - by user3610075
    i want to list files starting with a name like "Report" from a folder. i found this in google to list all files but i don't how to list file starting with a name. Thank you File directory = new File("C:\\Users\\kiki\\Downloads"); File[] files = directory.listFiles(); for (int index = 0; index < files.length; index++) { //Print out the name of files in the directory System.out.println(files[index].toString()); }

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  • Erlang - list comprehensions - populating records

    - by tbikeev
    I have a simple record structure consisting of a header (H) and a list of the data lines (D) 1:N. All header lines must start with a digit. All data lines have a leading whitespace. There also might be some empty lines (E) in between that must be ignored. L = [H, D, D, E, H, D, E, H, D, D, D]. I would like to create a list of records: -record(posting,{header,data}). using list comprehension. Whats the best way to do it?

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  • flex accessing children of a list component

    - by pfunc
    when I try to loop through the children of a List component that has buttons in it, I can't seem to access those children. I try for(var btnNum:Number = 0; btnNum < myList.numChildren; btnNum++) { trace(myList.getChildAt(btnNum); } but it is giving some other instance, not the button instances. and the weeklist <mx:List id="myList" dataProvider="{_data.mappoints.week.@number}" > <mx:itemRenderer > <mx:Component> <mx:Button buttonMode="true" toggle="true" alpha="1" width="116" height="35" label="WEEK {data}" > </mx:Button> </mx:Component> </mx:itemRenderer> </mx:List>

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  • A better way of representing File Attachment into a list(c#3.0)

    - by Newbie
    I have written List<Attachment> lstAttachment = new List<Attachment>(); //Check if any error file is present in which case it needs to be send if (new FileInfo(Path.Combine(errorFolder, errorFileName)).Exists) { Attachment unprocessedFile = new Attachment(Path.Combine(errorFolder, errorFileName)); lstAttachment.Add(unprocessedFile); } //Check if any processed file is present in which case it needs to be send if (new FileInfo(Path.Combine(outputFolder, outputFileName)).Exists) { Attachment processedFile = new Attachment(Path.Combine(outputFolder, outputFileName)); lstAttachment.Add(processedFile); } Working fine and is giving the expected output. Basically I am attaching the file to the list based on whether the file is present or not. I am looking for any other elegant solution than the one I have written. Reason: Want to learn differnt ways of representing the same program. I am using C#3.0 Thanks.

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  • Non-empty list with null elements returned from Hibernate query

    - by John
    Hi, I'm new to hibernate so not sure if this is an expected behaviour, anyway: Session session = (Session)entityManager.getDelegate(); Criteria criteria = session.createCriteria(myRequest.class); criteria.add(Restrictions.eq("username", username)); criteria.setProjection(Projections.max("accesscount")); List<myRequest> results = criteria.list(); The returned results is a non-empty list with a single null element. I can't think of any reason why it should behave this way, any idea if this is the expected behaviour or have I done something wrong? System is on hibernate/Syabse. Thanks.

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  • [Python] Best strategy for dealing with incomplete lines of data from a file.

    - by adoran
    I use the following block of code to read lines out of a file 'f' into a nested list: for data in f: clean_data = data.rstrip() data = clean_data.split('\t') t += [data[0]] strmat += [data[1:]] Sometimes, however, the data is incomplete and a row may look like this: ['955.159', '62.8168', '', '', '', '', '', '', '', '', '', '', '', '', '', '29', '30', '0', '0'] It puts a spanner in the works because I would like Python to implicitly cast my list as floats but the empty fields '' cause it to be cast as an array of strings (dtype: s12). I could start a second 'if' statement and convert all empty fields into NULL (since 0 is wrong in this instance) but I was unsure whether this was best. Is this the best strategy of dealing with incomplete data? Should I edit the stream or do it post-hoc?

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  • How to write a list to a text file in the correct format

    - by lia1000
    I've got this piece of code that I want to write the output to a text file but with the correct format i.e. no brackets, single quotes so it appears as a formatted list. This is the code: file = open("env5.txt", "w"); for key in os.environ.keys(): env = os.environ[key]; key1 = key; list = str([key, env]).replace("'","").replace('[]', ''); list2 = list[1:-1]; print(list2); file.writelines(list2); file.close(); This is the original code: for key in os.environ.keys(): print(key, os.environ[key]); Many thanks

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  • Python . How to get rid of '\r' in string?

    - by draconisthe0ry
    I have an excel file that I converted to a text file with a list of numbers. test = 'filelocation.txt' in_file = open(test,'r') for line in in_file: print line 1.026106236 1.660274766 2.686381002 4.346655769 7.033036771 1.137969254 a = [] for line in in_file: a.append(line) print a '1.026106236\r1.660274766\r2.686381002\r4.346655769\r7.033036771\r1.137969254' I wanted to assign each value (in each line) to an individual element in the list. Instead it is creating one element separated by \r . i'm not sure what \r is but why is putting these into the code ? I think I know a way to get rid of the \r from the string but i want to fix the problem from the source

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