如何将内存zip文件写入文件?
# Create in memory zip and add files
zf = zipfile.ZipFile(StringIO.StringIO(), mode='w',compression=zipfile.ZIP_DEFLATED)
zf.writestr('file1.txt', "hi")
zf.writestr('file2.txt', "hi")
# Need to write it out
f = file("C:/path/my_zip.zip", "w")
f.write(zf) # what to do here? Also tried f.write(zf.read())
f.close()
zf.close()
答案 0 :(得分:32)
StringIO.getvalue
返回StringIO
的内容:
>>> import StringIO
>>> f = StringIO.StringIO()
>>> f.write('asdf')
>>> f.getvalue()
'asdf'
或者,您可以使用seek
更改文件的位置:
>>> f.read()
''
>>> f.seek(0)
>>> f.read()
'asdf'
请尝试以下操作:
mf = StringIO.StringIO()
with zipfile.ZipFile(mf, mode='w', compression=zipfile.ZIP_DEFLATED) as zf:
zf.writestr('file1.txt', "hi")
zf.writestr('file2.txt', "hi")
with open("C:/path/my_zip.zip", "wb") as f: # use `wb` mode
f.write(mf.getvalue())
答案 1 :(得分:5)
修改python3的falsetru的答案
1)使用io.StringIO
代替StringIO.StringIO
2)使用b"abc"
代替"abc"
或
python 3.5: TypeError: a bytes-like object is required, not 'str' when writing to a file
3)编码为二进制字符串str.encode(s, "utf-8")
Best way to convert string to bytes in Python 3?
import zipfile
import io
mf = io.BytesIO()
with zipfile.ZipFile(mf, mode="w",compression=zipfile.ZIP_DEFLATED) as zf:
zf.writestr('file1.txt', b"hi")
zf.writestr('file2.txt', str.encode("hi"))
zf.writestr('file3.txt', str.encode("hi",'utf-8'))
with open("a.txt.zip", "wb") as f: # use `wb` mode
f.write(mf.getvalue())
答案 2 :(得分:1)
with ZipFile(read_file, 'r') as zipread:
with ZipFile(file_write_buffer, 'w', ZIP_DEFLATED) as zipwrite:
for item in zipread.infolist():
# Copy all ZipInfo attributes for each file since defaults are not preseved
dest.CRC = item.CRC
dest.date_time = item.date_time
dest.create_system = item.create_system
dest.compress_type = item.compress_type
dest.external_attr = item.external_attr
dest.compress_size = item.compress_size
dest.file_size = item.file_size
dest.header_offset = item.header_offset
如果zip文件读取损坏并且您注意到丢失的符号链接或带有错误时间戳的损坏文件,则可能是文件属性未被复制。
上面的代码片段是我解决问题的方法。