A Packaging the Python Libraries

To package the Python libraries, follow these steps:

1. The following sample installation steps are performed on Oracle Enterprise Linux 7.x.
2. Ensure that Oracle Enterprise Linux 7.x is installed.
3. Verify these libraries using the yum list as shown in the following command:
   yum list installed | grep libffi

   Figure A-1 Python Libraries Verification

   
   

   

   
   

   Note:

   If any lib is not installed, then install it using the above command one-by-one.
4. Install the following libraries using the following commands:
   • yum install libffi.i686
   • yum install libffi.x86_64
   • yum install libffi-devel.i686
   • yum install libffi-devel.x86_64
5. Ensure that the version of Python is 3.8.3 using the following commands:

   export http_proxy=www-proxy-idc.in.oracle.com:80

   exporthttps_proxy=www-proxy-idc.in.oracle.com:80

   wget https://www.python.org/ftp/python/3.9.4/Python-3.9.4.tgz tar xzf Python-3.9.4.tgz

   cd Python-3.9.4

   ./configure--prefix=$HOME/Python-3.9.4 --enable-optimizations -- without-ensurepip

   make install

6. Add $HOME/Python-3.9.4/bin in PATH in the .profile file.
7. After Python installation, execute the following command to install the setup tools:
   1. Verify if pip3 is installed using the following command:

      Run pip3

   2. If pip3 is not installed, then install it using the following command:

      curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py python3 get-pip.py

   3. Re-verify by executing: pip3 command (step a).
8. Install the Python libraries using the following commands:

   pip3 install numpy==1.19.4 pip3 install pandas==1.2.4
   pip3 install scikit-learn==0.24.2 pip3 install scipy==1.6.3
   pip3 install seaborn==0.10.1 pip3 install statsmodels==0.12.2 pip3 install matplotlib==3.2.2
   pip3 install imbalanced-learn==0.7.0 pip3 install cx_oracle==8.1.0
   pip3 install sqlalchemy==1.3.18 pip3 install pmdarima==1.8.2

9. Python set up tools 57.0.0 wheel 0.36.2

   python3 -m pip3 install --user --upgrade setuptools==57.0.0 wheel==0.36.2

10. If you face an SSL Error:
    • Offline Installation of setuptools

      Download setuptools wheel from the following link:

      wget https://files.pythonhosted.org/packages/44/a6/7fb6e8b3f4a6051e72e4e2218889351f0ee484b 9ee17e995f5ccff780300/setuptools-50.3.0-py3-none-any.whl

      pip3 install setuptools-50.1.0-py3-none-any.whl

    • Offline Installation of wheel

      Download wheel utility as

      wget https://files.pythonhosted.org/packages/a7/00/3df031b3ecd5444d572141321537080b40c1c25 e1caa3d86cdd12e5e919c/wheel-0.35.1-py2.py3-none-any.whl

      pip3 install wheel-0.35.1-py2.py3-none-any.whl