Python zipfile-IOError：[Errno 2]没有这样的文件或目录：zip_file

Question

pyMOTW

I need to create a ZIP file and save this file as binary in the database. I used reference from above website. My code is as below:

import time
import zipfile
import base64
zip_file = 'some_file_name.zip'
xml_file = 'xml_file.xml'
zf = zipfile.ZipFile(zip_file, mode='w',)
try:
   info = zipfile.ZipInfo(xml_file, 
                                   date_time=time.localtime(time.time()),
                                   )
   info.compress_type=zipfile.ZIP_DEFLATED
   info.comment='Remarks go here'
   info.create_system=0
   zf.writestr(info, "<Some XML string>")
finally:
   zf.close()
out = base64.encodestring(zf) # I need to convert zip into binary data in order to update this into database using ORM methods.

I don't need to read/write this zip file on File system. I just need to create it programmatically and convert it into binary.

I'm getting this error on the line : zf = zipfile.ZipFile(zip_file, mode='w',) Error traceback:

File "/usr/lib/python2.7/zipfile.py", line 756, in __init__
   self.fp = open(file, modeDict[mode])
IOError: [Errno 2] No such file or directory: u'some_file_name.zip'

Sorry for my bad indentation. Please help me out of this. Thanks in advance.

Answer 1

You don't have the file some_file_name.zip yet, so it cannot find it. Instead, try using zip_file = StringIO.StringIO() and then save the filename later on. I am not sure how to do that, because I am not sure what you want to do with the file. But I guess there is a way to define the filename when you save it on disk or database.