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Installation 

 

• Official website of Python https://www.python.org/

• Python documentation from https://www.python.org/doc/. 
  
  Installing Python
   

• Python distribution is available for a wide variety of platforms. You need to download only the binary code applicable for your platform and install Python.If the binary code for your platform is not available, you need a C compiler to compile the source code manually. Compiling the source code offers more flexibility in terms of choice of features that you require in your installation.

• Unix and Linux Installationne.

• Open a Web browser and go to https://www.python.org/downloads/.

• Download zipped source code available for Unix/Linux.

• Extract all files.

• run ./configure script

• make

• make install

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This installs Python at standard location /usr/local/bin and its libraries at /usr/local/lib/pythonXX where XX is the version of Python.

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       Python Environment Variables

PYTHONHOME - Location of standard libraries
PYTHONPATH - Additions to standard search path for modules
PYTHONSTARTUP - Interactive mode; commands run before first input is prompted for
PYTHONDEBUG - set nonempty to turn on python debugging
PYTHONCASEOK - Ignore case in