Some problems with Redis and Python installed on LinuxMint

There are some problems with Redis and Python installed today, which are documented after the resolution.

Environment: LinuxMint 18.3

Installing Redis

sudo wget http://download.redis.io/releases/redis-4.0.8.tar.gzsudo tar -zxf redis-4.0.8.tar.gz -C /usr/redis/cd /usr/redis/redis-4.0.8sudo make

My installation directory is/usr/redis.

The following issues were encountered during make:

net.c:36:23: fatal error: sys/types.h: No such file or directory...adlist.c:32:20: fatal error: stdlib.h: No such file or directory

The reason is that the file is missing and make resolved again after executing the following command:

sudo apt-get install libc6-dev

Reference: http://blog.csdn.net/yygydjkthh/article/details/41787049

zmalloc.h:50:31: fatal error: jemalloc/jemalloc.h: No such file or directory

The reason is that libc is not the default allocator, adding parameters after make is resolved:

sudo make MALLOC=libc

Reference: http://blog.csdn.net/fygkchina/article/details/51006976

Python version switching

The two versions of Python are built into Mint 18.3:2.7 and 3.5, when using the Python command by default, 2.7, for personal needs 3, to find a better way to not delete Python2:

Note: Only available for Linux in the Debian system

sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 9sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.5 10

/usr/bin/python2.7 and/usr/bin/python3.5 are the local Python installation directories, and the following 9 and 10 are priorities, and if 3 is preferred, the priority is set to a value higher than 2.

View the Python version again

python --versionPython 3.5.2

Note: Only available for Linux in the Debian system

If you want to switch back to 2 It's also easy to execute the command

sudo update-alternatives --config python

Then select the appropriate option to toggle the success

$ sudo update-alternatives --config python有 2 个候选项可用于替换 python (提供 /usr/bin/python)。  选择       路径              优先级  状态------------------------------------------------------------* 0            /usr/bin/python3.5   10        自动模式  1            /usr/bin/python2.7   9         手动模式  2            /usr/bin/python3.5   10        手动模式要维持当前值[*]请按<回车键>，或者键入选择的编号：1update-alternatives: 使用 /usr/bin/python2.7 来在手动模式中提供 /usr/bin/python (python)$ python --versionPython 2.7.12

More Solutions: http://blog.csdn.net/justdoithai/article/details/70310095

Some problems with Redis and Python installed on LinuxMint