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Installing Python

  1. Download the source code of Python 3.7.5.
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    wget https://www.python.org/ftp/python/3.7.5/Python-3.7.5.tgz
  2. Decompress Python-3.7.5.tgz.
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    tar -zxvf Python-3.7.5.tgz
  3. Go to the Python source code directory.
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    cd Python-3.7.5
  4. Compile Python.
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    ./configure --prefix=/usr/local/python3.7 --enable-optimizations
make
make install
  5. Create a soft link file in the path of the execution file.
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    ln -s /usr/local/python3.7/bin/python3 /usr/bin/python3
ln -s /usr/local/python3.7/bin/pip3 /usr/bin/pip3
  6. Configure environment variables.
    1. Create a /etc/profile.d/python37.sh file.
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      vi /etc/profile.d/python37.sh
    2. Add the following content to the file:
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      if [ -z ${PYTHON37_HOME} ]; then
export PYTHON37_HOME=/usr/local/python3.7
export PATH=${PYTHON37_HOME}/bin:${PATH}
fi
    3. Press Esc, type :wq!, and press Enter to save the file and exit.
    4. Load the environment variables.
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      source /etc/profile.d/python37.sh
  7. Query the Python version.
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    python3 --version

    If the following information is displayed, the installation is successful: