CentOS development environment configuration Python3

CentOS7 configuration Python3.7 development environment

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wget https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tgz tar -zxvf Python-3.7.3.tgz

2. Installation tools

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yum install -y gcc yum -y groupinstall "Development tools" yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel libffi-devel

3. Compile install Python

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mkdir / usr / local / python3 # Create a directory to python3 cd Python-3.7.3 / # to enter the just-extracting installation package python directory --prefix = ./configure / usr / local / python3 # generate makefile document, the installation directory where you want to make just their new catalog make # use the make command to compile a wave the make the Test # check there are no errors install the make # installation

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See this even if the installation was successful friends.

4. Create a soft link

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ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

5. Modify the default version python and yum

Since this time the default python or before the built-in version 2.x, so we have to change it

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rm / usr / bin / python soft connection python2 before deleting # -s LN / usr / local /python3/bin/python3.7 / usr / bin / python # Create a soft link to the python

Since yum default is python2, this time certainly will not be able to modify the run, we need to yum configuration file also changed a bit

1 2	LL / usr / bin / | grep python # First we look at the installation of python

From the figure we can see that this computer is installed python2.7 and python3.7, pointing to the default python is 3.7.

1 2	Vim / usr / bin / yum # into the python line corresponding to the first version, illustrated as python2.7

1 2	Vim / usr / libexec / urlgrabber-EXT-Down # same as above, and also where the operation

Finally input respectively yum, python, python2, python3, pipand other commands check