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I installed python 3.8 in my kali linux OS, but when I type python in kali linux terminal it showing like this

> Python 2.7.18 (default, Apr 20 2020, 20:30:41)

How can I set Python 3.8 as my default?

BenedictWilkins
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Mr Parashuram
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4 Answers4

1

Hope this answers your question. The easiest way would be to run alias python=python3 . So, now if you run the command python it will load python3 instead of python while being under the same alias/command python.

user14033863
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1

What I usually do is install non-default versions of programs under /usr/local. Then I configure the file $HOME/.bash_profile so that the $PATH variable has /usr/local/bin first, before /usr/bin and /bin (which might actually be the same physical directory on your system).

$HOME/.bash_profile:

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# PATH starts with...
PATH="/usr/local/bin"

# add $HOME/bin if it exists...
if [ -d "${HOME}/bin" ]; then
  PATH="${PATH}:${HOME}/bin"
fi

# These should exist, add them as fall back....
PATH="${PATH}:/bin:/usr/bin:/sbin:/usr/sbin"

# Some custom locations last
if [ -d /usr/local/arm-elf/bin ]; then
  PATH="${PATH}:/usr/local/arm-elf/bin"
fi
if [ -d /opt/local/bin ]; then
  PATH="${PATH}:/opt/local/bin"
fi

This has the effect of making anything located in /usr/local/bin the default when I am using an interactive shell, and letting the system defaults remain in effect otherwise.

Z4-tier
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1

first, check if you have python3.8 installed use

ls /usr/bin/python*

then check for an alternative python version using

update-alternatives --list python

if the output of python3.8 is set to 2

To set the default python command to run python3.8

use this to create a persistent symlink

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 2

the 2 depends on your python alternatives

then python --version

geek
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First remove python 2.7.18

Type >> sudo apt purge -y python2-minimal

install python latest version

Type >> sudo apt install -y python3-pip

latest version of python is installed!

ABCD
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