filesize

问题 I found out how to use PIL to get the image dimensions, but not the file size in bytes. I need to know the file size to decide if the file is too big to be uploaded to the database. 回答1: Try: import os print os.stat('somefile.ext').st_size 回答2: If you already have the image on the filesystem: import os os.path.getsize('path_to_file.jpg')` If, however, you want to get the saved size of an image that is in memory and has not been saved to the filesystem: from io import BytesIO img_file =

问题 How can I pipe a text stream into a file and, while the file is still in use, wipe it for job rotation? Long version: I've been struggling for a while onto an apparently minor issue, that's making my experiments impossible to continue. I have a software collecting data continuously from external hardware (radiotelescope project) and storing in a csv format. Being the installation at a remote location I would, once a day, copy the saved data in a secure place and wipe the file content while,

问题 i am currently trying out ivona SDK for iOS, amazing voice and very very natural. But the voice i am using (german female) have a voicefile with a filesize of 230 MB. when i want to use 4 voices then my app is approximately 1GB big. And also no use for offline. Is this voice just for the testphase? Or is it also for production? I think its horrible to implement a few voices for a small TTS application so that the app size is very very huge... can someone give me an answer to that? 回答1:

问题 I developed a small program using python and wxwidgets. It is a very simple program that uses only a mini frame to display some information when needed, and the rest of the time it shows nothing, only an icon in the taskbar. When I build the exe using py2exe (single file exe mode, optimized), I get a 6MB size file! I tried not including some libraries or dll that were not needed but still, I can't see why I get such a big file for just a mini frame and an icon in the taskbar. Is there any way

问题 I'm looking for the equivalent of Microsoft's _filelength in Linux. I tried this, but it's incorrect. long _filelength(char *f) { struct stat st; stat(f, &st); return st.st_size; } if((hfile = fopen("data.arp","rb"))!=NULL) fsize = _filelength(fileno(hfile)); How do I get the file length in C on Linux? 回答1: I'm looking for the equivalent of _filelength in linux. That is a very wrong approach and shows a wrong mindset. There is no exact equivalent of Windows' _filelength on Linux . Linux is

问题 The setup: A CouchDB 2.0 running in Docker on a Raspberry PI 3 A node-application that uses pouchdb, also in Docker on the same PI 3 The scenario: At any given moment, the CouchDB has at max 4 Databases with a total of about 60 documents the node application purges (using pouchdbs destroy) and recreates these databases periodically (some of them every two seconds, others every 15 minutes) The databases are always recreated with the newest entries The reason for purging the databases, instead

问题 iwant to download a file with the urllib2, and meanwhile i want to display a progress bar.. but how can i get the actual downloaded filesize? my current code is ul = urllib2.urlopen('www.file.com/blafoo.iso') data = ul.get_data() or open('file.iso', 'w').write(ul.read()) The data is first written to the file, if the whole download is recieved from the website. how can i access the downloaded data size? Thanks for your help 回答1: Here's an example of a text progress bar using the awesome

问题 I am trying to calculate apk file size of the installed applications. Here is the code public class PackageTabActivity extends ListActivity{ private static final String APP_NAME = "app_name"; private static final String APP_ICON = "app_icon"; private static final String APP_SIZE = "app_size"; Method getPackageSizeInfo = null; PackageManager pm ; @Override public void onCreate(Bundle icicle){ super.onCreate(icicle); pm = getPackageManager(); try { getPackageSizeInfo = pm.getClass().getMethod(

问题 How can I pipe a text stream into a file and, while the file is still in use, wipe it for job rotation? Long version: I've been struggling for a while onto an apparently minor issue, that's making my experiments impossible to continue. I have a software collecting data continuously from external hardware (radiotelescope project) and storing in a csv format. Being the installation at a remote location I would, once a day, copy the saved data in a secure place and wipe the file content while,

问题 I have a google script which accesses a website, finds a .zip file, unzips it, and extracts the relevant data from the relevant files. I want to do the same thing, but for a different, larger .zip file on the same site. I've accessed the .zip (using almost identical code), but it throws an error: "Could not unzip." My code: var dir = UrlFetchApp.fetch(url); var b = dir.getBlob(); var files = Utilities.unzip(b); The only difference between the two files are these: File A ends with "Update%201