Add this to `.bashrc`, `.bash_profile` or alike to use `venv` in a similar manner as conda

venv-like-conda

# ****************************************
# VENV WRAPPER to use like conda
#   add this to .bashrc or .bash_profile
# 
# 
# Create env: 
#
#   venvc <envname> 
#
# Activate env:
#
#   venva <envname>
#
# Deactivate env:
#
#   venvd
# or 
#   deactivate
# 
# Remove env:
#
#   venvr <envname>
# or if error,
#   venvr <envname> -f
#
# Show env list
# 
#   venvl
# *****************************************

# choose the default venv location
VENVROOT="$HOME/venv"

function _venvc() {
  # internally used by venv3 and venv2
  # $1 : env name
  # $2 : python version
  if [ -z "$1" ]
  then
    echo "Provide env name; e.g. venvc$2 <envname>"
  else
    python$2 -m venv "$VENVROOT/$1" && echo "Created env at $VENVROOT/$1"
  fi
}

function venvc2() { _venvc "$1" 2; }
function venvc3() { _venvc "$1" 3; }
alias venvc=venvc3
# because i use python3 most of the time

function venva() { source "$VENVROOT/$1/bin/activate"; }
alias venvd=deactivate

function venvr() { 
  # $1   : env name
  # $2...: options to rm, in case -f or sort is needed
  envname="$1" 
  shift 
  if [ -z "$envname" ]
  then
    echo "Provide env name; e.g. vencr <envname>"
  else
    rm -r $@ "$VENVROOT/$envname" &&  echo "Removed $VENVROOT/$envname"
  fi
}

function venvl() {
  # $1...: options to ls
  ls $@ $VENVROOT
}