我需要获取 Windows 上某些文件的 mime 类型,所以我已经安装了python-magic
(在 32 位 python 2.7.3 上)。
这取决于unixmagic
图书馆。
作者指示获取regex2.dll
, zlib1.dll
and magic1.dll
来自 gnuwin32 项目。
所以我将文件保存到一个文件夹并将该文件夹添加到我的系统中PATH
.
现在当我执行magic
方法,我得到丢失文件异常:
import magic
print(magic.Magic())
Traceback (most recent call last):
File "C:/Users/Admin/PycharmProjects/lex/lex.py", line 367, in <module>
test_magic()
File "C:/Users/Admin/PycharmProjects/lex/lex.py", line 364, in test_magic
print(magic.Magic())
File "C:\Python27\lib\site-packages\python_magic-0.4.3-py2.7.egg\magic.py", line 52, in __init__
magic_load(self.cookie, magic_file)
File "C:\Python27\lib\site-packages\python_magic-0.4.3-py2.7.egg\magic.py", line 188, in magic_load
return _magic_load(cookie, coerce_filename(filename))
File "C:\Python27\lib\site-packages\python_magic-0.4.3-py2.7.egg\magic.py", line 139, in errorcheck
raise MagicException(err)
magic.MagicException: could not find any magic files!
DLL 位于 PATH 中,我尝试调试并magic1.dll
位置正确,但库内某处抛出异常。
在 - 的里面gnuwin32
我找到的包magic
and magic.mgc
。我把它们放在同一个文件夹中,然后得到WindowsError: [Error 126]
on
libmagic = None
# Let's try to find magic or magic1
dll = ctypes.util.find_library('magic') or ctypes.util.find_library('magic1')
# This is necessary because find_library returns None if it doesn't find the library
if dll:
libmagic = ctypes.CDLL(dll)
这显然是因为 python 尝试打开magic
文件为 dll,纯文本。添加后.dll
到代码中的文件名我得到相同的magic.MagicException: could not find any magic files!
.
我缺少什么文件?
UPDATE:
C:\Users\Admin>file C:\123.zip -m magic
file: could not find any magic files!
C:\Users\Admin>file C:\123.zip -m "C:\@DEV\@LIB\@Magic\GetGnuWin32\bin\magic"
C:\123.zip; ASCII text, with no line terminators
C:\Users\Admin>cd C:\@DEV\@LIB\@Magic\GetGnuWin32\bin
C:\@DEV\@LIB\@Magic\GetGnuWin32\bin>file C:\123.zip -m magic
C:\123.zip; ASCII text, with no line terminators
更新2(已解决):
print(magic.Magic())
magic.MagicException: could not find any magic files!
print(magic.Magic(magic_file = 'magic'))
<magic.Magic instance at 0x02A5E198>
只需要明确指定文件