zipfile Namespace Reference

Data Structures
class	BadZipfile
class	ZipInfo
class	ZipFile
class	PyZipFile

Functions
def	is_zipfile

Variables
	zlib = None
list	__all__
	error = BadZipfile
int	ZIP_STORED = 0
int	ZIP_DEFLATED = 8
string	structEndArchive = "<4s4H2lH"
string	stringEndArchive = "PK\005\006"
string	structCentralDir = "<4s4B4H3l5H2l"
string	stringCentralDir = "PK\001\002"
string	structFileHeader = "<4s2B4H3l2H"
string	stringFileHeader = "PK\003\004"
int	_CD_SIGNATURE = 0
int	_CD_CREATE_VERSION = 1
int	_CD_CREATE_SYSTEM = 2
int	_CD_EXTRACT_VERSION = 3
int	_CD_EXTRACT_SYSTEM = 4
int	_CD_FLAG_BITS = 5
int	_CD_COMPRESS_TYPE = 6
int	_CD_TIME = 7
int	_CD_DATE = 8
int	_CD_CRC = 9
int	_CD_COMPRESSED_SIZE = 10
int	_CD_UNCOMPRESSED_SIZE = 11
int	_CD_FILENAME_LENGTH = 12
int	_CD_EXTRA_FIELD_LENGTH = 13
int	_CD_COMMENT_LENGTH = 14
int	_CD_DISK_NUMBER_START = 15
int	_CD_INTERNAL_FILE_ATTRIBUTES = 16
int	_CD_EXTERNAL_FILE_ATTRIBUTES = 17
int	_CD_LOCAL_HEADER_OFFSET = 18
int	_FH_SIGNATURE = 0
int	_FH_EXTRACT_VERSION = 1
int	_FH_EXTRACT_SYSTEM = 2
int	_FH_GENERAL_PURPOSE_FLAG_BITS = 3
int	_FH_COMPRESSION_METHOD = 4
int	_FH_LAST_MOD_TIME = 5
int	_FH_LAST_MOD_DATE = 6
int	_FH_CRC = 7
int	_FH_COMPRESSED_SIZE = 8
int	_FH_UNCOMPRESSED_SIZE = 9
int	_FH_FILENAME_LENGTH = 10
int	_FH_EXTRA_FIELD_LENGTH = 11
tuple	_STRING_TYPES = (types.StringType,)

Function Documentation

def zipfile.is_zipfile

(

filename)

Quickly see if file is a ZIP file by checking the magic number.

Will not accept a ZIP archive with an ending comment.

Definition at line 75 of file zipfile.py.

References aifc.open().

def is_zipfile(filename):
    """Quickly see if file is a ZIP file by checking the magic number.

    Will not accept a ZIP archive with an ending comment.
    """
    try:
        fpin = open(filename, "rb")
        fpin.seek(-22, 2)               # Seek to end-of-file record
        endrec = fpin.read()
        fpin.close()
        if endrec[0:4] == "PK\005\006" and endrec[-2:] == "\000\000":
            return 1    # file has correct magic number
    except IOError:
        pass