From 350941e31de5b454cad75abe5fb0d3db027bc1a7 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Wed, 12 Jul 2017 18:28:01 +0200 Subject: [PATCH] python: remove target Python packages from PYTHONPATH We currently have $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/site-packages/ inside the PYTHON_PATH variable, which gets used to define PYTHONPATH, passed to the host Python interpreter when building/installing target packages. However, this is terribly wrong, as it causes the host interpreter to potentially import target Python packages. This is wrong for several reasons: - Some Python packages might need some Python modules to be installed on the host (described in setup_requires in setup.py), but their installation currently works because by luck the corresponding Python module is installed for the target. Some of those cases were happening for real, and fixed by previous patches. - Some Python packages include some native code, therefore built for a specific CPU architecture. When you point the host Python interpreter to native libraries built for the target, you get nice build failures, such as the one affecting the python-cffi related packages. Making this change allows to fix the python-cffi related build failures: http://autobuild.buildroot.net/results/a9af84f2d845ee25e2b7d8b92aef485112b46060/ (python-cryptography) http://autobuild.buildroot.net/results/b017c4f6b4d45c0afbf06a80dbd3f2ebe5d49d20/ (python-pynacl) http://autobuild.buildroot.net/results/25144ea191ad46d851b31d3a2f0ef939f215494b/ (python-smbus-cffi) This change has been verified with the following defconfig that enables a lot of Python packages: BR2_arm=y BR2_TOOLCHAIN_EXTERNAL=y BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-2017.05-834-gb595627.tar.bz2" BR2_TOOLCHAIN_EXTERNAL_GCC_4_9=y BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10=y BR2_TOOLCHAIN_EXTERNAL_LOCALE=y BR2_TOOLCHAIN_EXTERNAL_CXX=y BR2_INIT_NONE=y BR2_SYSTEM_BIN_SH_NONE=y BR2_PACKAGE_PYTHON=y BR2_PACKAGE_PYTHON_ALSAAUDIO=y BR2_PACKAGE_PYTHON_ARROW=y BR2_PACKAGE_PYTHON_ATTRS=y BR2_PACKAGE_PYTHON_AUTOBAHN=y BR2_PACKAGE_PYTHON_BITSTRING=y BR2_PACKAGE_PYTHON_BOTTLE=y BR2_PACKAGE_PYTHON_CAN=y BR2_PACKAGE_PYTHON_CBOR=y BR2_PACKAGE_PYTHON_CHARDET=y BR2_PACKAGE_PYTHON_CHEETAH=y BR2_PACKAGE_PYTHON_CHERRYPY=y BR2_PACKAGE_PYTHON_CONFIGOBJ=y BR2_PACKAGE_PYTHON_CONFIGSHELL_FB=y BR2_PACKAGE_PYTHON_CRC16=y BR2_PACKAGE_PYTHON_CRCMOD=y BR2_PACKAGE_PYTHON_CSSSELECT=y BR2_PACKAGE_PYTHON_CSSUTILS=y BR2_PACKAGE_PYTHON_DAEMON=y BR2_PACKAGE_PYTHON_DIALOG=y BR2_PACKAGE_PYTHON_DICTTOXML=y BR2_PACKAGE_PYTHON_DJANGO=y BR2_PACKAGE_PYTHON_DOCOPT=y BR2_PACKAGE_PYTHON_DPKT=y BR2_PACKAGE_PYTHON_ECDSA=y BR2_PACKAGE_PYTHON_ENUM=y BR2_PACKAGE_PYTHON_FLASK_BABEL=y BR2_PACKAGE_PYTHON_FLASK_JSONRPC=y BR2_PACKAGE_PYTHON_FLASK_LOGIN=y BR2_PACKAGE_PYTHON_FLUP=y BR2_PACKAGE_PYTHON_GOBJECT=y BR2_PACKAGE_PYTHON_GUNICORN=y BR2_PACKAGE_PYTHON_HTML5LIB=y BR2_PACKAGE_PYTHON_HTTPLIB2=y BR2_PACKAGE_PYTHON_HUMANIZE=y BR2_PACKAGE_PYTHON_ID3=y BR2_PACKAGE_PYTHON_INIPARSE=y BR2_PACKAGE_PYTHON_IOWAIT=y BR2_PACKAGE_PYTHON_IPADDR=y BR2_PACKAGE_PYTHON_IPY=y BR2_PACKAGE_PYTHON_IPYTHON=y BR2_PACKAGE_PYTHON_JSON_SCHEMA_VALIDATOR=y BR2_PACKAGE_PYTHON_KEYRING=y BR2_PACKAGE_PYTHON_LIBCONFIG=y BR2_PACKAGE_PYTHON_LMDB=y BR2_PACKAGE_PYTHON_LXML=y BR2_PACKAGE_PYTHON_MAD=y BR2_PACKAGE_PYTHON_MARKDOWN=y BR2_PACKAGE_PYTHON_MELD3=y BR2_PACKAGE_PYTHON_MISTUNE=y BR2_PACKAGE_PYTHON_MSGPACK=y BR2_PACKAGE_PYTHON_MUTAGEN=y BR2_PACKAGE_PYTHON_MWSCRAPE=y BR2_PACKAGE_PYTHON_NETADDR=y BR2_PACKAGE_PYTHON_NETIFACES=y BR2_PACKAGE_PYTHON_NFC=y BR2_PACKAGE_PYTHON_NUMPY=y BR2_PACKAGE_PYTHON_PAHO_MQTT=y BR2_PACKAGE_PYTHON_PAM=y BR2_PACKAGE_PYTHON_PARAMIKO=y BR2_PACKAGE_PYTHON_PILLOW=y BR2_PACKAGE_PYTHON_POSIX_IPC=y BR2_PACKAGE_PYTHON_PSUTIL=y BR2_PACKAGE_PYTHON_PUDB=y BR2_PACKAGE_PYTHON_PYCLI=y BR2_PACKAGE_PYTHON_PYCPARSER=y BR2_PACKAGE_PYTHON_PYELFTOOLS=y BR2_PACKAGE_PYTHON_PYFTPDLIB=y BR2_PACKAGE_PYTHON_PYGAME=y BR2_PACKAGE_PYTHON_PYGAME_IMAGE=y BR2_PACKAGE_PYTHON_PYGAME_EXAMPLES=y BR2_PACKAGE_PYTHON_PYGAME_FONT=y BR2_PACKAGE_PYTHON_PYGAME_MIXER=y BR2_PACKAGE_PYTHON_PYINOTIFY=y BR2_PACKAGE_PYTHON_PYLIBFTDI=y BR2_PACKAGE_PYTHON_PYMYSQL=y BR2_PACKAGE_PYTHON_PYPARTED=y BR2_PACKAGE_PYTHON_PYPCAP=y BR2_PACKAGE_PYTHON_PYQRCODE=y BR2_PACKAGE_PYTHON_PYRATEMP=y BR2_PACKAGE_PYTHON_PYRO=y BR2_PACKAGE_PYTHON_PYROUTE2=y BR2_PACKAGE_PYTHON_PYSENDFILE=y BR2_PACKAGE_PYTHON_PYSMB=y BR2_PACKAGE_PYTHON_PYSNMP_APPS=y BR2_PACKAGE_PYTHON_PYSNMP_MIBS=y BR2_PACKAGE_PYTHON_PYSOCKS=y BR2_PACKAGE_PYTHON_PYTABLEWRITER=y BR2_PACKAGE_PYTHON_PYTRIE=y BR2_PACKAGE_PYTHON_PYUSB=y BR2_PACKAGE_PYTHON_PYXB=y BR2_PACKAGE_PYTHON_PYZMQ=y BR2_PACKAGE_PYTHON_REQUESTS_TOOLBELT=y BR2_PACKAGE_PYTHON_RPI_GPIO=y BR2_PACKAGE_PYTHON_RTSLIB_FB=y BR2_PACKAGE_PYTHON_SDNOTIFY=y BR2_PACKAGE_PYTHON_SERIAL=y BR2_PACKAGE_PYTHON_SETPROCTITLE=y BR2_PACKAGE_PYTHON_SH=y BR2_PACKAGE_PYTHON_SHUTILWHICH=y BR2_PACKAGE_PYTHON_SIMPLEJSON=y BR2_PACKAGE_PYTHON_SMBUS_CFFI=y BR2_PACKAGE_PYTHON_SOCKETIO=y BR2_PACKAGE_PYTHON_SORTEDCONTAINERS=y BR2_PACKAGE_PYTHON_SPIDEV=y BR2_PACKAGE_PYTHON_THRIFT=y BR2_PACKAGE_PYTHON_TOMAKO=y BR2_PACKAGE_PYTHON_TREQ=y BR2_PACKAGE_PYTHON_U_MSGPACK=y BR2_PACKAGE_PYTHON_UBJSON=y BR2_PACKAGE_PYTHON_UJSON=y BR2_PACKAGE_PYTHON_URLLIB3=y BR2_PACKAGE_PYTHON_VERSIONTOOLS=y BR2_PACKAGE_PYTHON_WATCHDOG=y BR2_PACKAGE_PYTHON_WEB2PY=y BR2_PACKAGE_PYTHON_WEBPY=y BR2_PACKAGE_PYTHON_WHOOSH=y BR2_PACKAGE_PYTHON_WS4PY=y BR2_PACKAGE_PYTHON_WSACCEL=y BR2_PACKAGE_PYTHON_XLUTILS=y Signed-off-by: Thomas Petazzoni Reviewed-by: Yegor Yefremov Signed-off-by: Thomas Petazzoni --- package/python/python.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package/python/python.mk b/package/python/python.mk index 30c55b7704..cf1ddfb57a 100644 --- a/package/python/python.mk +++ b/package/python/python.mk @@ -235,7 +235,7 @@ HOST_PYTHON_POST_INSTALL_HOOKS += HOST_PYTHON_INSTALL_PYTHON_SYMLINK endif # Provided to other packages -PYTHON_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/sysconfigdata/:$(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/site-packages/ +PYTHON_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/sysconfigdata/ $(eval $(autotools-package)) $(eval $(host-autotools-package)) -- 2.30.2