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  • linux安装python3.*,更换Python2.*

    下载并解压:Python-3.5.7.tgz

     1 [root@AH-aQYWTYSJZX01 python3]# ll
     2 total 20268
     3 -rw-r----- 1 temp01 temp01 20753760 Jul 11 08:30 Python-3.5.7.tgz
     4 [root@AH-aQYWTYSJZX01 python3]# tar -zxvf Python-3.5.7.tgz
     5 ......
     6 Python-3.5.7/Python/condvar.h
     7 Python-3.5.7/Python/modsupport.c
     8 Python-3.5.7/Python/compile.c
     9 Python-3.5.7/Python/frozenmain.c
    10 Python-3.5.7/Python/asdl.c
    11 Python-3.5.7/Python/errors.c
    12 Python-3.5.7/Python/getplatform.c
    13 Python-3.5.7/Python/README
    14 Python-3.5.7/Python/codecs.c
    15 Python-3.5.7/Python/thread_pthread.h
    16 Python-3.5.7/Python/Python-ast.c
    17 Python-3.5.7/Python/ceval.c
    18 Python-3.5.7/config.sub
    19 Python-3.5.7/README
    20 Python-3.5.7/Grammar/
    21 Python-3.5.7/Grammar/Grammar
     1 [root@AH-aQYWTYSJZX01 Python-3.5.7]# ./configure --prefix=/usr/local/python3
     2 ......
     3 checking for /dev/ptmx... yes
     4 checking for /dev/ptc... no
     5 checking for %lld and %llu printf() format support... yes
     6 checking for %zd printf() format support... yes
     7 checking for socklen_t... yes
     8 checking for broken mbstowcs... no
     9 checking for --with-computed-gotos... no value specified
    10 checking whether gcc -pthread supports computed gotos... yes
    11 checking for build directories... done
    12 checking for -O2... yes
    13 checking for glibc _FORTIFY_SOURCE/memmove bug... no
    14 checking for gcc ipa-pure-const bug... no
    15 checking for stdatomic.h... no
    16 checking for GCC >= 4.7 __atomic builtins... no
    17 checking for ensurepip... upgrade
    18 checking if the dirent structure of a d_type field... yes
    19 checking for the Linux getrandom() syscall... no
    20 checking for the getrandom() function... no
    21 configure: creating ./config.status
    22 config.status: creating Makefile.pre
    23 config.status: creating Modules/Setup.config
    24 config.status: creating Misc/python.pc
    25 config.status: creating Misc/python-config.sh
    26 config.status: creating Modules/ld_so_aix
    27 config.status: creating pyconfig.h
    28 creating Modules/Setup
    29 creating Modules/Setup.local
    30 creating Makefile
    31  
    32  
    33 If you want a release build with all stable optimizations active (PGO, etc),
    34 please run ./configure --enable-optimizations
     1 [root@AH-aQYWTYSJZX01 Python-3.5.7]# make
     2 ......
     3 To find the necessary bits, look in setup.py in detect_modules() for the module's name.
     4  
     5 The following modules found by detect_modules() in setup.py, have been
     6 built by the Makefile instead, as configured by the Setup files:
     7 atexit                pwd                   time               
     8  
     9 Failed to build these modules:
    10 _pickle                                                        
    11  
    12 running build_scripts
    13 creating build/scripts-3.5
    14 copying and adjusting /sga/python3/Python-3.5.7/Tools/scripts/pydoc3 -> build/scripts-3.5
    15 copying and adjusting /sga/python3/Python-3.5.7/Tools/scripts/idle3 -> build/scripts-3.5
    16 copying and adjusting /sga/python3/Python-3.5.7/Tools/scripts/2to3 -> build/scripts-3.5
    17 copying and adjusting /sga/python3/Python-3.5.7/Tools/scripts/pyvenv -> build/scripts-3.5
    18 changing mode of build/scripts-3.5/pydoc3 from 640 to 755
    19 changing mode of build/scripts-3.5/idle3 from 640 to 755
    20 changing mode of build/scripts-3.5/2to3 from 640 to 755
    21 changing mode of build/scripts-3.5/pyvenv from 640 to 755
    22 renaming build/scripts-3.5/pydoc3 to build/scripts-3.5/pydoc3.5
    23 renaming build/scripts-3.5/idle3 to build/scripts-3.5/idle3.5
    24 renaming build/scripts-3.5/2to3 to build/scripts-3.5/2to3-3.5
    25 renaming build/scripts-3.5/pyvenv to build/scripts-3.5/pyvenv-3.5
    26 /usr/bin/install -c -m 644 ./Tools/gdb/libpython.py python-gdb.py
    27 gcc -pthread -c -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes    -Werror=declaration-after-statement   -I. -I./Include    -DPy_BUILD_CORE -o Programs/_testembed.o ./Programs/_testembed.c
    28 gcc -pthread   -Xlinker -export-dynamic -o Programs/_testembed Programs/_testembed.o libpython3.5m.a -lpthread -ldl  -lutil -lrt   -lm  
    29 # Substitution happens here, as the completely-expanded BINDIR
    30 # is not available in configure
    31 sed -e "s,@EXENAME@,/usr/local/python3/bin/python3.5m," < ./Misc/python-config.in >python-config.py
    32 # Replace makefile compat. variable references with shell script compat. ones;  -> 
    33 LC_ALL=C sed -e 's,$(([A-Za-z0-9_]*)),${1},g' < Misc/python-config.sh >python-config
    34 # On Darwin, always use the python version of the script, the shell
    35 # version doesn't use the compiler customizations that are provided
    36 # in python (_osx_support.py).
    37 if test `uname -s` = Darwin; then 
    38                 cp python-config.py python-config; 
    39         fi
     1 [root@AH-aQYWTYSJZX01 Python-3.5.7]# make install
     2 ......
     3 if test "3.5" != "3.5m"; then 
     4                 rm -f /usr/local/python3/bin/python3.5-config; 
     5                 (cd /usr/local/python3/bin; ln -s python3.5m-config python3.5-config); 
     6                 rm -f /usr/local/python3/lib/pkgconfig/python-3.5m.pc; 
     7                 (cd /usr/local/python3/lib/pkgconfig; ln -s python-3.5.pc python-3.5m.pc); 
     8         fi
     9 rm -f /usr/local/python3/bin/python3-config
    10 (cd /usr/local/python3/bin; ln -s python3.5-config python3-config)
    11 rm -f /usr/local/python3/lib/pkgconfig/python3.pc
    12 (cd /usr/local/python3/lib/pkgconfig; ln -s python-3.5.pc python3.pc)
    13 rm -f /usr/local/python3/bin/idle3
    14 (cd /usr/local/python3/bin; ln -s idle3.5 idle3)
    15 rm -f /usr/local/python3/bin/pydoc3
    16 (cd /usr/local/python3/bin; ln -s pydoc3.5 pydoc3)
    17 rm -f /usr/local/python3/bin/2to3
    18 (cd /usr/local/python3/bin; ln -s 2to3-3.5 2to3)
    19 rm -f /usr/local/python3/bin/pyvenv
    20 (cd /usr/local/python3/bin; ln -s pyvenv-3.5 pyvenv)
    21 if test "x" != "x" ; then 
    22                 rm -f /usr/local/python3/bin/python3-32; 
    23                 (cd /usr/local/python3/bin; ln -s python3.5-32 python3-32) 
    24         fi
    25 rm -f /usr/local/python3/share/man/man1/python3.1
    26 (cd /usr/local/python3/share/man/man1; ln -s python3.5.1 python3.1)
    27 if test "xupgrade" != "xno"  ; then 
    28                 case upgrade in 
    29                         upgrade) ensurepip="--upgrade" ;; 
    30                         install|*) ensurepip="" ;; 
    31                 esac; 
    32                  ./python -E -m ensurepip 
    33                         $ensurepip --root=/ ; 
    34         fi
    35 Collecting setuptools
    36 Collecting pip
    37 Installing collected packages: setuptools, pip
    38 Successfully installed pip-9.0.1 setuptools-28.8.0
    1 建立连接(将python3映射到python)
    2 [root@AH-aQYWTYSJZX01 Python-3.5.7]# mv /usr/bin/python /usr/bin/python.bak
    3 [root@AH-aQYWTYSJZX01 Python-3.5.7]# ln -s /usr/local/python3/bin/python3 /usr/bin/python
    4 [root@AH-aQYWTYSJZX01 Python-3.5.7]#python
    5 6 [root@AH-aQYWTYSJZX01 Python-3.5.7]# ln -s /usr/local/python3/bin/python3 /usr/bin/python3
    7 [root@AH-aQYWTYSJZX01 Python-3.5.7]#python3
    8 
    9 将/usr/local/python3/bin加入PATH
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  • 原文地址:https://www.cnblogs.com/fameg/p/11226453.html
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