2016-06-06 10 views
1

Kürzlich versuche ich Python zu lernen und schreiben einige Skripte während der Arbeit. Wie auch immer, ich habe festgestellt, dass mein Python nicht auf dem neuesten Stand ist. Also upgrade ich von 2.6 auf 2.7.6 und folge einem Guide aus dem Netzwerk. Danach scheinen Python, Pip und easy_install in Ordnung zu sein. Dann habe ich versucht, Paramiko mit Pip zu installieren. Der Fehler zeigt die libffi nicht gefunden wie unten. Aber als ich versucht habe, libffi zu installieren, zeigt es sich schon dort. Ich habe versucht, dort nach anderen Paketen zu suchen, aber es gibt keine.Kann Paramiko in Cent OS nicht installieren

Das Problem ist, dass Pip versucht, libffi.pc zu finden, aber es ist nicht in jedem der Paket.

Kann mir jemand helfen?

Danke!


[[email protected] ~]# pip install paramiko 
Requirement already satisfied (use --upgrade to upgrade): paramiko in /usr/local/lib/python2.7/site-packages/paramiko-2.0.0-py2.7.egg 
Collecting cryptography>=1.1 (from paramiko) 
/usr/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning. 
    SNIMissingWarning 
/usr/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning. 
    InsecurePlatformWarning 
    Using cached cryptography-1.4.tar.gz 
Requirement already satisfied (use --upgrade to upgrade): pyasn1>=0.1.7 in /usr/local/lib/python2.7/site-packages (from paramiko) 
Requirement already satisfied (use --upgrade to upgrade): idna>=2.0 in /usr/local/lib/python2.7/site-packages (from cryptography>=1.1->paramiko) 
Requirement already satisfied (use --upgrade to upgrade): six>=1.4.1 in /usr/local/lib/python2.7/site-packages (from cryptography>=1.1->paramiko) 
Requirement already satisfied (use --upgrade to upgrade): setuptools>=11.3 in /usr/local/lib/python2.7/site-packages/setuptools-22.0.5-py2.7.egg (from cryptography>=1.1->paramiko) 
Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/local/lib/python2.7/site-packages (from cryptography>=1.1->paramiko) 
Requirement already satisfied (use --upgrade to upgrade): ipaddress in /usr/local/lib/python2.7/site-packages (from cryptography>=1.1->paramiko) 
Collecting cffi>=1.4.1 (from cryptography>=1.1->paramiko) 
    Using cached cffi-1.6.0.tar.gz 
Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/local/lib/python2.7/site-packages (from cffi>=1.4.1->cryptography>=1.1->paramiko) 
Building wheels for collected packages: cryptography, cffi 
    Running setup.py bdist_wheel for cryptography ... error 
    Complete output from command /usr/local/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-TN9_mw/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpQ9VyZFpip-wheel- --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 
    c/_cffi_backend.c:15:17: error: ffi.h: No such file or directory 
    In file included from c/_cffi_backend.c:63: 

[[email protected] ~]# yum install libffi 
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager 
Setting up Install Process 
Package libffi-3.0.5-3.2.el6.x86_64 already installed and latest version 
Nothing to do 

[[email protected] ~]# yum search libffi 
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager 
====================================================================================== N/S Matched: libffi ====================================================================================== 
libffi.i686 : A portable foreign function interface library 
libffi.x86_64 : A portable foreign function interface library 

    Name and summary matches only, use "search all" for everything. 

[[email protected] ~]# rpm -ql libffi.x86_64 
/usr/lib64/libffi.so.5 
/usr/lib64/libffi.so.5.0.6 
/usr/share/doc/libffi-3.0.5 
/usr/share/doc/libffi-3.0.5/LICENSE 
/usr/share/doc/libffi-3.0.5/README 


[[email protected] ~]# yum install libffi-devel 
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager 
Setting up Install Process 
No package libffi-devel available. 
Error: Nothing to do 

[[email protected] ~]# yum upgrade libffi-devel 
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager 
Setting up Upgrade Process 
No Match for argument: libffi-devel 
No package libffi-devel available. 
No Packages marked for Update 
[[email protected] ~]# yum upgrade libffi 
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager 
Setting up Upgrade Process 
No Packages marked for Update 

[[email protected] ~]# locate libffi 
/opt/Python-2.7.6/Modules/_ctypes/libffi 
/opt/Python-2.7.6/Modules/_ctypes/libffi.diff 
/opt/Python-2.7.6/Modules/_ctypes/libffi_arm_wince 
/opt/Python-2.7.6/Modules/_ctypes/libffi_msvc 
...... 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/libffi/src/xtensa/.deps/sysv.Plo 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/libffi/testsuite/Makefile 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/closures.o 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/prep_cif.o 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/x86 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/x86/ffi.o 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/x86/ffi64.o 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/x86/sysv.o 
/opt/Python-2.7.6/build/temp.linux-x86_64-2.7/opt/Python-2.7.6/Modules/_ctypes/libffi/src/x86/unix64.o 
/usr/lib64/libffi.so.5 
/usr/lib64/libffi.so.5.0.6 
/usr/share/doc/libffi-3.0.5 
/usr/share/doc/libffi-3.0.5/LICENSE 
/usr/share/doc/libffi-3.0.5/README 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/checksum_data 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/checksum_type 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/from_repo 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/from_repo_revision 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/from_repo_timestamp 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/installed_by 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/reason 
/var/lib/yum/yumdb/l/66af3a78b71c9ab35c98a0a9bcd1cb15d195d206-libffi-3.0.5-3.2.el6-x86_64/releasever 
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Versuchen Sie, es zu entfernen und erneut zu installieren. – NepCoder

+0

Danke NepCoder! Sieht so aus, als könnte ich das Paket nicht einfach entfernen, da es von Python und anderen Dingen benutzt wird. [root @ vmx-dsm-038 ~] # rpm -e libffi.x86_64 Fehler: Fehlgeschlagene Abhängigkeiten: libffi.so.5() (64bit) wird von (installiert) jna-3.2.4-2.el6 benötigt. x86_64 libffi.so.5() (64bit) wird benötigt von (installiert) python-libs-2.6.6-64.el6.x86_64 libffi wird von (installiert) jna-3.2.4-2.el6.x86_64 benötigt –

+0

Können Sie überprüfen, ob libffi die neueste Version ist? Ich würde versuchen, es zu aktualisieren, wenn ein neues Update verfügbar ist. Diese Seite könnte hilfreich sein: http://stackoverflow.com/questions/2720014/upgrading-all-packages-with-pip – NepCoder

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