Python获取文件信息-PHP Blog
import osimport sys
from UserDict import UserDict
def stripnulls(data):
"strip whitespace and nulls"
return data.replace("\00", " ").strip()
class FileInfo(UserDict):
"store file metadata"
def __init__(self, filename=None):
UserDict.__init__(self)
self["name"] = filename
class MP3FileInfo(FileInfo):
"store ID3v1.0 MP3 tags"
tagDataMap = {"title" : (3,33, stripnulls),
"artist": ( 33,63, stripnulls),
"album" : ( 63,93, stripnulls),
"year" : ( 93,97, stripnulls),
"comment" : ( 97, 126, stripnulls),
"genre" : (127, 128, ord)}
def __parse(self, filename):
"parse ID3v1.0 tags from MP3 file"
self.clear()
try:
fsock = open(filename, "rb", 0)
try:
fsock.seek(-128, 2)
tagdata = fsock.read(128)
finally:
fsock.close()
if tagdata[:3] == 'TAG':
for tag, (start, end, parseFunc) in self.tagDataMap.items():
self = parseFunc(tagdata)
except IOError:
pass
def __setitem__(self, key, item):
if key == "name" and item:
self.__parse(item)
FileInfo.__setitem__(self, key, item)
def listDirectory(directory, fileExtList):
"get list of file info objects for files of particular extensions"
fileList =
fileList = [os.path.join(directory, f) for f in fileList \
if os.path.splitext(f) in fileExtList]
def getFileInfoClass(filename, module=sys.modules):
"get file info class from filename extension"
subclass = "%sFileInfo" % os.path.splitext(filename).upper()
return hasattr(module, subclass) and getattr(module, subclass) or FileInfo
return
if __name__ == "__main__":
for info in listDirectory("/music/_singles/", [".mp3"]):
print "\n".join(["%s=%s" % (k, v) for k, v in info.items()])
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