zip

问题 I have found below code in web, result is tuple of two elements in list, how to understand [iter(list)]*2 ? lst = [1,2,3,4,5,6,7,8] b=zip(*[iter(lst)]*2) list(b) [(1, 2), (3, 4), (5, 6), (7, 8)] ------------ [iter(lst)]*2 [<list_iterator at 0x1aff33917f0>, <list_iterator at 0x1aff33917f0>] I check [iter(lst)]*2 , same iterator above, so meaning iter repeat double, so, if i check num from 2 to 3, result should be [(1, 2, 3), (4, 5, 6),(7,8,NaN)] but delete 7,8 lst = [1,2,3,4,5,6,7,8] b=zip(*

问题 I'm trying to write a method that extracts a zip file to a directory, finds a file in the extracted contents, reads the text in that file to a string, and returns that string. Here is my attempt private string _getDataFile(string zipFile) { string pathToFolder = @"C:\Path\To\The\File"; foreach (char c in Path.GetInvalidPathChars()) { pathToFolder = Regex.Replace(pathToFolder, c.ToString(), ""); } string pathToFile = pathToFolder + @"\model.dat"; ZipFile.ExtractToDirectory(zipFile,

问题 I am trying to import a zip file packaged with numpy. I have zipped numpy into packages.zip . However while using the zip file I am getting the following import error. > python Python 2.7.9 (default, Jan 7 2015, 11:49:12) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.path.insert(0, 'packages.zip') >>> import numpy Traceback (most recent call last): File "<stdin>", line 1, in

问题 I am trying to import a zip file packaged with numpy. I have zipped numpy into packages.zip . However while using the zip file I am getting the following import error. > python Python 2.7.9 (default, Jan 7 2015, 11:49:12) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.path.insert(0, 'packages.zip') >>> import numpy Traceback (most recent call last): File "<stdin>", line 1, in

问题 I am trying to import a zip file packaged with numpy. I have zipped numpy into packages.zip . However while using the zip file I am getting the following import error. > python Python 2.7.9 (default, Jan 7 2015, 11:49:12) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.path.insert(0, 'packages.zip') >>> import numpy Traceback (most recent call last): File "<stdin>", line 1, in

问题 I can use the DotNetZip library to unzip a single zip file: Using Zip As ZipFile = ZipFile.Read(ZipFilePath) AddMessage("Unzipping " & Zip.Entries.Count & " entries") End Using However, if I try and pass in the first segment of a split archive produced using 7-Zip (e.g. Pubs.zip.001) then it throws an error: Could not read block - no data! (position 0x03210FCE) The documentation seems to infer that you don't have to do anything special to read a split archive: This property has no effect when

问题 I need to download a zip file from url, save it and extract it for getting data. So i had a method for download zip file using Rest Template. When i download data and save file as a zip, i can extract zip file when right click and extract but i cant extract using java. i tried zip4j and java util zip but both of them throw an exception. With zip4j i get: zip headers not found. probably not a zip file with ZipException. My Sample code for download and save data as zip: String body = gson

问题 I have a process in Azure that generates a large number of pdf report files and stores them in blob storage. Rather than send links to all these individually, I'm generating a zip file and sending this link to users. This process is all done in a single process, and has been working fine. Lately, I've been getting OutOfMemory exception errors when adding files to the zip archive and I'm struggling to find a solution. Below is the code I use to create the zip file (note: using the SharpLibZip

问题 I'm trying to unzip a directory of 75,000 images for training a CNN. When unzipping using, !unzip -uq "/content/BDD_gt_8045.zip" -d "/content/drive/My Drive/Ground_Truth" not all images unzip. I have about 5,000 I believe. I tried doing it several times but then I have some duplicates. Is there a limit to the number of images I can unzip? I'm currently stuck on how else I'm meant to get all files into my drive to train the model. 回答1: Colab's default 'unzip' binary doesn't work as expected.

问题 Which is the fastest way for extracting .zip archives? Performance of my application is highly based on how fast .zip files are extracted. I am using dotNetzip atm, but it seems that there could be more faster tools. If there is, are they safe? I've heard that QuickLZ is the fastest, but haven't tested it, also haven't found any code samples or how to use it in c#. Any help would be greatly appriciated. 回答1: If upgrading your project to .NET 4.5 is an option, then you can use the ZipArchive