It will return the bytes of the given file as long as the archive containing the file is open for reading.

We will now read the contents of one of the files in the archive using the read() function. I have taken some text files from the Project Gutenberg website and created an archive with them. Now, it is time to go a step further and get the actual content of those files. We were able to get a lot of important information about the files in our archive using their ZipInfo objects. I am sure it can be used in some other situations as well. This information about the original file size and compressed file size can help you decide whether it is worth compressing a file. ZipFile ( 'C: \ Stories \ Funny \ archive.zip' ) as stories_zip : The following code uses the properties and methods we just discussed to extract only those files that have a size below 1MB. Similarly, to know the uncompressed size, you can use the file_size attribute. To get the compressed size of an individual file from the archive, you can use the compress_size attribute. To do this, the archive must be opened in read or append mode.

You can also directly read the contents of a specific file from the archive using the read(file) method, where file is the name of the file that you intend to read. The order of these objects in the list is the same as that of actual zipfiles. In this case, you can use the infolist() method to return a list containing a ZipInfo object for every single member in the archive. We will come back to that later.Ĭalling the getinfo() method one by one on all files can be a tiresome process when there are a lot of files that need to be processed. This will give you access to information specific to that file, like the compressed and uncompressed size of the file or its last modification time. To get information on a specific file in the archive, you can use the getinfo() method of the ZipFile object. Using the namelist() method of the ZipFile object will return a list of all members of an archive by name. The zipfile module allows us to inquire about the contents of an archive without ever extracting it.

Similarly, you may need to extract only those files which are larger than a specific size. Up to this point, your only option to do so is by extracting all the files in the archive. extract ( 'Fantasy Jungle.pdf', 'C: \ Stories \ Fantasy' )Ĭonsider a scenario where you need to see if a zip archive contains a specific file. ZipFile ( 'C: \ Stories \ Fantasy \ archive.zip' ) as fantasy_zip :įantasy_zip.

How to open cpgz file