Reading corrupted/partial zip files in python

zerrez (Johan Brinch) — Mon, 09 Apr 2007 20:35:31 GMT

First a simple script for reading non-corruted zipfiles in python:



filename = 'foo.zip'



import zipfile



z = zipfile.ZipFile(filename)



for i in z.infolist():

    print i.filename, i.file_size



z.read('somefile')

Next we use 'zip -FF foo.zip' to fix the zipfile, before reading it:



filename = 'foo.zip'



import zipfile



try:

    z = zipfile.ZipFile(filename)

except zipfile.BadZipfile:

    import commands

    commands.getoutput('zip -FF '+filename)

    z = zipfile.ZipFile(filename)



for i in z.infolist():

    print i.filename, i.file_size



try: 

    z.read('somefile')

except zipfile.BadZipfile:

    print 'Bad CRC-32'

In short: use 'zip -FF file.zip' to fix the file. It will restore the filelist.

Render a partial to an instance variable

canadaduane (Duane Johnson) — Sun, 19 Jun 2005 15:27:40 GMT

Normally, if you call "render_partial" within a controller, nothing but the partial will be rendered.

Occasionally, it is useful to render a partial to an instance variable as a string so that the view can still be rendered as normal, and the string can be passed in to the view.



  add_variables_to_assigns

  @content_for_navbar = @template.render_partial 'layouts/public_navbar'

DZone Snippets: partial code

Reading corrupted/partial zip files in python

Render a partial to an instance variable