[全网唯一]通过修改源码使得从ZIP提取文件并在提取时进行重命名保存(博客园同步发布)
源码位置: /Lib/zipfile.py/ZipFile/_extract_member/zipfile.py或者直接点击extract函数.
在使用python解压缩zip文件时, 由于需要在解压时重命名文件为我想要的格式, 而不巧的是, zipfile包官方源代码没有这个功能...
于是, 在百度之后, 果断放弃寻找现成代码的想法.
在研究了一下extract函数的原源代码后, 觉得可以加一个参数targetname用来指代重命名后的文件名, 而很巧的是, 这个新参数并没有在源代码中使用, 所以加入它没有影响.
Talk is easy, show you code~
代码展示
row 1618 def extract(self, member, path=None, pwd=None,targetname=None): """targetname : the name extracted rename to targetname Extract a member from the archive to the current working directory, using its full name. Its file information is extracted as accurately as possible. `member' may be a filename or a ZipInfo object. You can specify a different directory using `path'. """ if path is None: path = os.getcwd() else: path = os.fspath(path) return self._extract_member(member, path, pwd,targetname) def extractall(self, path=None, members=None, pwd=None,targetname=None): """Extract all members from the archive to the current working directory. `path' specifies a different directory to extract to. `members' is optional and must be a subset of the list returned by namelist(). """ if members is None: members = self.namelist() if path is None: path = os.getcwd() else: path = os.fspath(path) for zipinfo in members: self._extract_member(zipinfo, path, pwd,targetname) row 1650 ... row 1665 def _extract_member(self, member, targetpath, pwd,targetname): """Extract the ZipInfo object 'member' to a physical file on the path targetpath. """ if not isinstance(member, ZipInfo): member = self.getinfo(member) # build the destination pathname, replacing # forward slashes to platform specific separators. arcname = member.filename.replace('/', os.path.sep) if os.path.altsep: arcname = arcname.replace(os.path.altsep, os.path.sep) # interpret absolute pathname as relative, remove drive letter or # UNC path, redundant separators, "." and ".." components. arcname = os.path.splitdrive(arcname)[1] invalid_path_parts = ('', os.path.curdir, os.path.pardir) arcname = os.path.sep.join(x for x in arcname.split(os.path.sep) if x not in invalid_path_parts) if os.path.sep == '\\': # filter illegal characters on Windows arcname = self._sanitize_windows_name(arcname, os.path.sep) if targetname is None: targetpath = os.path.join(targetpath, arcname) targetpath = os.path.normpath(targetpath) else: targetpath = os.path.normpath(targetpath) # Create all upper directories if necessary. upperdirs = os.path.dirname(targetpath) if upperdirs and not os.path.exists(upperdirs): os.makedirs(upperdirs) if member.is_dir(): if not os.path.isdir(targetpath): os.mkdir(targetpath) return targetpath if targetname is None: with self.open(member, pwd=pwd) as source, \ open(targetpath, "wb") as target: shutil.copyfileobj(source, target) else: with self.open(member, pwd=pwd) as source, \ open(targetpath+"/"+targetname, "wb") as target: shutil.copyfileobj(source, target) return targetpath row 1713
用法
可以直接粘贴到自己的源码中, 如果担心出现其他bug, 可以用完就重装zipfile.
调用extract时传入三个参数: 压缩包所在目录, 目标目录, 目标名称(重命名后的名字, 如果为None则默认原命名)