如何提取一个zip到内存?提取zipfile到内存?
我尝试(上.getvalue()
返回None
):
from zipfile import ZipFile
from StringIO import StringIO
def extract_zip(input_zip):
return StringIO(ZipFile(input_zip).extractall())
如何提取一个zip到内存?提取zipfile到内存?
我尝试(上.getvalue()
返回None
):
from zipfile import ZipFile
from StringIO import StringIO
def extract_zip(input_zip):
return StringIO(ZipFile(input_zip).extractall())
extractall
提取到文件系统,所以你不会得到你想要的。要提取内存中的文件,请使用read
方法。
如果你真的需要在内存中的全部内容,你可以这样做:
def extract_zip(input_zip):
input_zip=ZipFile(input_zip)
return {name: input_zip.read(name) for name in input_zip.namelist()}
可能的原因:
1,本模块目前不支持多盘的ZIP文件。 (OR)
2.使用StringIO.getvalue()天气检查Unicode错误即将到来。
号['extractall'](http://docs.python.org/库/ zipfile#zipfile.ZipFile.extractall)不会返回任何东西(呃,默认为'None'),这就是他得到的。 – mata
经常与档案工作我会建议制作一个工具,以舒适地处理内存档案。事情是这样的:
import zipfile
import StringIO
class InMemoryZip(object):
def __init__(self):
# Create the in-memory file-like object for working w/imz
self.in_memory_zip = StringIO.StringIO()
# Just zip it, zip it
def append(self, filename_in_zip, file_contents):
# Appends a file with name filename_in_zip and contents of
# file_contents to the in-memory zip.
# Get a handle to the in-memory zip in append mode
zf = zipfile.ZipFile(self.in_memory_zip, "a", zipfile.ZIP_DEFLATED, False)
# Write the file to the in-memory zip
zf.writestr(filename_in_zip, file_contents)
# Mark the files as having been created on Windows so that
# Unix permissions are not inferred as 0000
for zfile in zf.filelist:
zfile.create_system = 0
return self
def read(self):
# Returns a string with the contents of the in-memory zip.
self.in_memory_zip.seek(0)
return self.in_memory_zip.read()
# Zip it, zip it, zip it
def writetofile(self, filename):
# Writes the in-memory zip to a file.
f = file(filename, "wb")
f.write(self.read())
f.close()
if __name__ == "__main__":
# Run a test
imz = InMemoryZip()
imz.append("testfile.txt", "Make a test").append("testfile2.txt", "And another one")
imz.writetofile("testfile.zip")
的作品就像一个魅力
参见:https://stackoverflow.com/questions/5710867 – J0ANMM