- Betriebssystem: Raspberry Pi
Fehlerphänomen
Wenn wir das Gevent-Paket von Python installieren, schlägt die Installation manchmal leider fehl. Ich hoffe, dass Ihr Fehler derselbe ist wie meiner, damit er Ihnen bei der Lösung des Problems helfen kann. Die Installationsfehlermeldung lautet wie folgt:
sudo pip install gevent
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting gevent
Using cached https://files.pythonhosted.org/packages/c8/18/631398e45c109987f2d8e57f3adda161cc5ff2bd8738ca830c3a2dd41a85/gevent-21.12.0.tar.gz
Installing build dependencies ... error
Complete output from command /usr/bin/python -m pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-ix_DdY --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple --extra-index-url https://www.piwheels.org/simple -- "setuptools >= 40.8.0" wheel "Cython >= 3.0a9" "cffi >= 1.12.3 ; platform_python_implementation == 'CPython'" "greenlet >= 0.4.17, < 2.0 ; platform_python_implementation == 'CPython'":
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple, https://www.piwheels.org/simple
Collecting setuptools>=40.8.0
Using cached https://files.pythonhosted.org/packages/e1/b7/182161210a13158cd3ccc41ee19aadef54496b74f2817cc147006ec932b4/setuptools-44.1.1-py2.py3-none-any.whl
Collecting wheel
Using cached https://files.pythonhosted.org/packages/27/d6/003e593296a85fd6ed616ed962795b2f87709c3eee2bca4f6d0fe55c6d00/wheel-0.37.1-py2.py3-none-any.whl
Collecting Cython>=3.0a9
Using cached https://files.pythonhosted.org/packages/c4/7c/293f5e9311664af5f54ca46dcb2118fc1b4e551eec161f74c050f17cd991/Cython-3.0.0a10-py2.py3-none-any.whl
Collecting cffi>=1.12.3
Using cached https://files.pythonhosted.org/packages/2b/a8/050ab4f0c3d4c1b8aaa805f70e26e84d0e27004907c5b8ecc1d31815f92a/cffi-1.15.1.tar.gz
Collecting greenlet<2.0,>=0.4.17
Collecting pycparser (from cffi>=1.12.3)
Using cached https://files.pythonhosted.org/packages/62/d5/5f610ebe421e85889f2e55e33b7f9a6795bd982198517d912eb1c76e1a53/pycparser-2.21-py2.py3-none-any.whl
Building wheels for collected packages: cffi
Running setup.py bdist_wheel for cffi: started
Running setup.py bdist_wheel for cffi: finished with status 'error'
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-Ez5ALp/cffi/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/pip-wheel-lxLCdt --python-tag cp27:
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-armv7l-2.7
creating build/lib.linux-armv7l-2.7/cffi
copying cffi/vengine_gen.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/error.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/cparser.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/commontypes.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/ffiplatform.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/pkgconfig.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/api.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/model.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/recompiler.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/__init__.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/verifier.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/lock.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_cffi_include.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/parse_c_type.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_embedding.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-armv7l-2.7/cffi
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-armv7l-2.7
creating build/temp.linux-armv7l-2.7/c
arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-InigCj/python2.7-2.7.16=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DFFI_BUILDING=1 -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-armv7l-2.7/c/_cffi_backend.o
c/_cffi_backend.c:15:10: fatal error: ffi.h: No such file or directory
#include <ffi.h>
^~~~~~~
compilation terminated.
error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1
----------------------------------------
Failed building wheel for cffi
Running setup.py clean for cffi
Failed to build cffi
Installing collected packages: setuptools, wheel, Cython, pycparser, cffi, greenlet
Running setup.py install for cffi: started
Running setup.py install for cffi: finished with status 'error'
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-Ez5ALp/cffi/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-ffnMrz/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-ix_DdY --compile:
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
Package libffi was not found in the pkg-config search path.
Perhaps you should add the directory containing `libffi.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libffi' found
running install
running build
running build_py
creating build
creating build/lib.linux-armv7l-2.7
creating build/lib.linux-armv7l-2.7/cffi
copying cffi/vengine_gen.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/error.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/cparser.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/commontypes.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/ffiplatform.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/pkgconfig.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/api.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/model.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/recompiler.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/__init__.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/verifier.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/lock.py -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_cffi_include.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/parse_c_type.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_embedding.h -> build/lib.linux-armv7l-2.7/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-armv7l-2.7/cffi
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-armv7l-2.7
creating build/temp.linux-armv7l-2.7/c
arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-InigCj/python2.7-2.7.16=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DFFI_BUILDING=1 -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-armv7l-2.7/c/_cffi_backend.o
c/_cffi_backend.c:15:10: fatal error: ffi.h: No such file or directory
#include <ffi.h>
^~~~~~~
compilation terminated.
error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1
----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-Ez5ALp/cffi/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-ffnMrz/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-ix_DdY --compile" failed with error code 1 in /tmp/pip-install-Ez5ALp/cffi/
----------------------------------------
Command "/usr/bin/python -m pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-ix_DdY --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple --extra-index-url https://www.piwheels.org/simple -- "setuptools >= 40.8.0" wheel "Cython >= 3.0a9" "cffi >= 1.12.3 ; platform_python_implementation == 'CPython'" "greenlet >= 0.4.17, < 2.0 ; platform_python_implementation == 'CPython'"" failed with error code 1 in None
Lösung
Schritt 1
Führen Sie den folgenden Befehl aus:
python -m pip install --upgrade pip
Hinweis:
pi@pi:~/HeatMap $ python -m pip install --upgrade pip
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting pip
Downloading https://files.pythonhosted.org/packages/27/79/8a850fe3496446ff0d584327ae44e7500daf6764ca1a382d2d02789accf7/pip-20.3.4-py2.py3-none-any.whl (1.5MB)
100% |████████████████████████████████| 1.5MB 172kB/s
Installing collected packages: pip
Successfully installed pip-20.3.4
Schritt 2
Führen Sie den folgenden Befehl aus:
pip3 install gevent
Die Eingabeaufforderungsinformationen lauten wie folgt:
pi@pi:~/HeatMap $ pip3 install gevent
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting gevent
Downloading https://www.piwheels.org/simple/gevent/gevent-21.12.0-cp37-cp37m-linux_armv7l.whl (2.7MB)
100% |████████████████████████████████| 2.7MB 28kB/s
Requirement already satisfied: setuptools in /usr/lib/python3/dist-packages (from gevent) (40.8.0)
Collecting greenlet<2.0,>=1.1.0; platform_python_implementation == "CPython" (from gevent)
Downloading https://www.piwheels.org/simple/greenlet/greenlet-1.1.2-cp37-cp37m-linux_armv7l.whl (161kB)
100% |████████████████████████████████| 163kB 152kB/s
Collecting zope.event (from gevent)
Downloading https://files.pythonhosted.org/packages/9e/85/b45408c64f3b888976f1d5b37eed8d746b8d5729a66a49ec846fda27d371/zope.event-4.5.0-py2.py3-none-any.whl
Collecting zope.interface (from gevent)
Downloading https://www.piwheels.org/simple/zope-interface/zope.interface-5.4.0-cp37-cp37m-linux_armv7l.whl (240kB)
100% |████████████████████████████████| 245kB 43kB/s
Installing collected packages: greenlet, zope.event, zope.interface, gevent
Successfully installed gevent-21.12.0 greenlet-1.1.2 zope.event-4.5.0 zope.interface-5.4.0
Erfolgreiche Installation!