[python] Pytesseract : "TesseractNotFound Error: tesseract is not installed or it's not in your path", how do I fix this?

# {Windows 10 instructions}
# before you use the script you need to install the dependence
# 1. download the tesseract from the official link:
#   https://github.com/UB-Mannheim/tesseract/wiki
# 2. install the tesseract
#   i chosed this path
#       *replace the user string in the below path with you name of user that you are using in your current machine
#       C:\Users\user\AppData\Local\Tesseract-OCR\
# 3. Install the  pillow for your python version
# * the best way for me is to install is this form(i'am using python3.7 version and in my CMD i run this version of python by     typing py -3.7):
# * if you are using another version of python first look how you start the python from you CMD
# * for some machine the run of python from the CMD is different
    # [examples]
    # =================================
    # PYTHON VERSION 3.7
    # python
    # python3.7
    # python -3.7
    # python 3.7
    # python3
    # python -3
    # python 3
    # py3.7
    # py -3.7
    # py 3.7
    # py3
    # py -3
    # py 3
    # PYTHON VERSION 3.6
    # python
    # python3.6
    # python -3.6
    # python 3.6
    # python3
    # python -3
    # python 3
    # py3.6
    # py -3.6
    # py 3.6
    # py3
    # py -3
    # py 3
    # PYTHON VERSION 2.7
    # python
    # python2.7
    # python -2.7
    # python 2.7
    # python2
    # python -2
    # python 2
    # py2.7
    # py -2.7
    # py 2.7
    # py2
    # py -2
    # py 2
    # ================================
# we are using pip to install the dependences
# because for me i start the python version 3.7 with the following line 
    # py -3.7
# open the CMD in windows machine and type the following line:
    # py -3.7 -m pip install pillow
# 4. Install the  pytesseract and tesseract for your python version
# * the best way for me is to install is this form(i'am using python3.7 version and in my CMD i run this version of python by     typing py -3.7):
# we are using pip to install the dependences
# open the CMD in windows machine and type the following lines:
    # py -3.7 -m pip install pytesseract
    # py -3.7 -m pip install tesseract


#!/usr/bin/python
from PIL import Image
import pytesseract
import os
import getpass

def extract_text_from_image(image_file_name_arg):

    # IMPORTANT
    # if you have followed my instructions to install this dependence in above text explanatin
    # for my machine is
    # if you don't put the right path for tesseract.exe the script will not work
    username = getpass.getuser()
    # here above line get the username for your machine automatically
    tesseract_exe_path_installation="C:\\Users\\"+username+"\\AppData\\Local\\Tesseract-OCR\\tesseract.exe"
    pytesseract.pytesseract.tesseract_cmd=tesseract_exe_path_installation

# specify the direction of your image files manually or use line bellow if the images are in the script directory in     folder  images
    # image_dir="D:\\GIT\\ai_example\\extract_text_from_image\\images"
    image_dir=os.getcwd()+"\\images"
    dir_seperator="\\"
    image_file_name=image_file_name_arg
    # if your image are in different format change the extension(ex. ".png")
    image_ext=".jpg"
    image_path_dir=image_dir+dir_seperator+image_file_name+image_ext

    print("=============================================================================")
    print("image used is in the following path dir:")
    print("\t"+image_path_dir)
    print("=============================================================================")

    img=Image.open(image_path_dir)
    text=pytesseract.image_to_string(img, lang="eng")
    print(text)

# change the name "image_1" whith the name without extension for your image name
# image_file_name_arg="image_1"
image_file_name_arg="image_2"
# image_file_name_arg="image_3"
# image_file_name_arg="image_4"
# image_file_name_arg="image_5"
extract_text_from_image(image_file_name_arg)

# ==================================
# CREATED BY: SHERIFI
# e-mail: [email protected]
# git-link for script: https://github.com/sherifi/ai_example.git
# ==================================