Python wrapper for libmagic.
# MacOS $ export MAGIC=/usr/local/Cellar/libmagic/5.39/share/misc/magic.mgc # Ubuntu $ export MAGIC=/usr/lib/file/magic.mgc
import cmagic
# Database path from MAGIC environment variable
m = cmagic.Magic()
if m.check():
print("Database is ok")
m.load()
m.guess_file("/etc/hosts")
# 'ASCII text'
m.guess_bytes("hello world")
# 'ASCII text'
# Setting flags
m.set_flags(mime_type=True)
m = cmagic.Magic(
# Setting flags here
mime_type=True
)
# Trying to find database on the standard paths
m.load(cmagic.find_db())
m.guess_file("/etc/hosts")
# 'text/plain'
m.guess_bytes("hello world")
# 'text/plain'
import asyncio
import cmagic
from threading import local
magic_tls = local()
def get_instance():
global magic_tls
if not hasattr(magic_tls, "instance"):
m = cmagic.Magic(mime_type=True)
m.load(cmagic.find_db())
magic_tls.instance = m
return magic_tls.instance
async def guess_file(fname):
loop = asyncio.get_event_loop()
def run():
m = get_instance()
return m.guess_file(fname)
return await loop.run_in_executor(None, run)
async def guess_bytes(payload):
loop = asyncio.get_event_loop()
def run():
m = get_instance()
return m.guess_bytes(payload)
return await loop.run_in_executor(None, run)
if __name__ == "__main__":
print(asyncio.run(guess_file("/etc/hosts")))
# text/plain
print(asyncio.run(guess_bytes(b"\0\0\0\0\0\0\0")))
# application/octet-stream
apt-get install -y libmagic1 libmagic-mgc # when using manilinux wheel
apt-get install -y libmagic-dev # for building from sources
python3 -m pip install cmagic
yum install -y file-libs # when using manilinux wheel
yum install -y file-devel # for building from sources
python3 -m pip install cmagic
brew install libmagic
export CFLAGS="-I$(brew --prefix libmagic)/include" LDFLAGS="-L$(brew --prefix libmagic)/lib"
python3 -m pip install cmagic