pip 安装过程中依赖处理

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错误一：pip install M2Crypto 如下错误

 copying M2Crypto/SSL/ssl_dispatcher.py -> build/lib.linux-x86_64-2.6/M2Crypto/SSL    running build_ext    building 'M2Crypto.__m2crypto' extension    swigging SWIG/_m2crypto.i to SWIG/_m2crypto_wrap.c    swig -python -I/usr/include/python2.6 -I/usr/include -I/usr/include/openssl -includeall -modern -D__x86_64__ -o SWIG/_m2crypto_wrap.c SWIG/_m2crypto.i    SWIG/_m2crypto.i:30: Error: Unable to find 'openssl/opensslv.h'    SWIG/_m2crypto.i:33: Error: Unable to find 'openssl/safestack.h'    SWIG/_evp.i:12: Error: Unable to find 'openssl/opensslconf.h'    SWIG/_ec.i:7: Error: Unable to find 'openssl/opensslconf.h'    error: command 'swig' failed with exit status 1        ----------------------------------------    Command "/usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-3lUDcU/M2Crypto/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-eSjJaS-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-3lUDcU/M2Crypto

解决办法如下：

yum install openssl-devel

[root@localhost fuwo_web]# yum install openssl-develLoaded plugins: fastestmirror, refresh-packagekit, securityLoading mirror speeds from cached hostfile * base: mirrors.skyshe.cn * epel: ftp.sjtu.edu.cn * extras: mirrors.pubyun.com * updates: mirror.bit.edu.cnSetting up Install ProcessResolving Dependencies--> Running transaction check

正确结果如下：

.0.3->-r requirements.txt (line 19))Installing collected packages: M2Crypto, torndb  Running setup.py install for M2Crypto  Running setup.py install for torndbSuccessfully installed M2Crypto-0.22.3 torndb-0.3

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