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How to run python program automatically even if system restarted

I want to run my python API continuously (means program API will all-time active if call then it work) even if a system restarts my python API automatically restart.
I have API URL: http://localhost:8002/city_id_pred?id=1,2 through this URL calling python API.
Program:
import web
import pyodbc
import re
import numpy as np
#from wordcloud import WordCloud, STOPWORDS
from collections import Counter
from sklearn.externals import joblib
import pandas as pd
cnxn = pyodbc.connect('')
cursor = cnxn.cursor()
urls = (
'/city_id_pred?', 'Predict'
#'/', 'MyApplication'
)
class Predict(web.application):
def run(self, port=8080, *middleware):
func = self.wsgifunc(*middleware)
return web.httpserver.runsimple(func, ('0.0.0.0', port))
print("Start class...")
def GET(self):
#here prediction model
if __name__ == "__main__":
app = Predict(urls, globals())
app.run(port=8002)
Please suggest
Actually, I want to run on window server but currently using in windows OS.

As #Mubarak said, you basically want to convert it to a .exe and then add that .exe to startup.
I would recommend that you do this by using PyInstaller and then following this tutorial on how to add that .exe to your startup.

Following step will help you:
Make your python code like example.py
Convert example.py to example.exe file by using auto-py-to-exe https://pypi.org/project/auto-py-to-exe/
Open Task Schedular in your window system
Create Task->Gentral Tab ->Give Name,Location
Trigger Tab->Bigin the Task->On Startup
Hope this helps

Following given steps,.
1.Convert your python file to .exe format(https://pypi.org/project/auto-py-to-exe/)
Make simple batch file to run the .exe file which your python file.
#echo off
cd "C:\Program Files\Google\Chrome\Application\"
Start chrome.exe
start – "C:\Program Files\Microsoft Office\Office15\WINWORD.EXE"
"C:\Work\MUO\How to Batch Rename.docx"
cd "C:\Program Files (x86)\VMware\VMware Player"
start vmplayer.exe
exit
Hope your understood,....

Jinja not imported when executing script from another one

I have a web server with CGI script calling python scripts.
When i try to execute in a main file (test1.py) another script called via
os.system('/var/www/cgi-bin/readIRtemp.py '+arg1+' '+arg2+' '+arg3)
I get his error message in /var/log/apache2/error.log :
import: not found
from: can't read /var/mail/jinja2
this is understandable for me since when called directly from the python console my script works !
its content is:
import sys, os
from jinja2 import Environment, FileSystemLoader, select_autoescape
last20values=sys.argv[1]
currTempInDegreesCelcius=sys.argv[2]
print('test '+last20values+' '+currTempInDegreesCelcius)
env = Environment(
loader=FileSystemLoader('/var/www/html/templates'),
autoescape=select_autoescape(['html', 'xml'])
)
template = env.get_template('IR.html')
updatedTemplate=template.render( arrayOfTemp = last20values, currTemp=currTempInDegreesCelcius)
Html_file=open("/var/www/html/IR.html","w")
Html_file.write(updatedTemplate)
Html_file.close()
I read somewhere something like maybe when calling os.system() the script is running with a different user account or some crazy things like that ... please help!
of course i chmod 777 * everything but that doesnt help ...

Running xlwings on a server

Solved the problem by making sure that python27.dll and win32api into the PYTHON_WIN directory. The two files with an arrow were missing in the server folder (P:/)
I am using udf module of xlwings and setting xlwings.bas configuration into a server. (I have my personal disk C:/ however other users need to run this macro and the file must be stored in P:/)
I have python, xlwings and other modules installed in P:/, but I get some strange error about importing os lib. Does any one have ever passed through this ?
Thanks in advance.
I got this from python:
"Python process exited before it was possible to create the interface object.
Command: P:\Python 27\python.exe -B -c ""import sys, os;sys.path.extend(os.path.normcase(os.path.expandvars(r'P:\Risco\Python Scripts')).split(';'));import xlwings.server; xlwings.server.serve('{2bb649ad-487e-48d5-ab31-24adaeefca59}')""
Working Dir: "
Xlwings.bas is set like this:
PYTHON_WIN = "P:\Python 27\python.exe"
PYTHON_MAC = ""
PYTHON_FROZEN = ThisWorkbook.Path & "\build\exe.win32-2.7"
PYTHONPATH = "P:\Risco\Python Scripts"
UDF_MODULES = "FetchPL"
UDF_DEBUG_SERVER = False
LOG_FILE = ""
SHOW_LOG = True
OPTIMIZED_CONNECTION = False

Call custom AutoIt function from python

I found a way to run built in auto it functions from python using the following code
from win32com.client import Dispatch
Auto = Dispatch("AutoItX3.Control")
Auto.Run("notepad.exe", "", 5)
Is there a similar way to call custom methods i.e methods defined in my_AutoIt_File.au3
Say I have a method in this file
Func my_autoit_method
;some code
EndFunc
Is there a way to call this my_autoit_method from python?

From the help file:
AutoIt specific command Line Switches
Form1: AutoIt3.exe [/ErrorStdOut] [/AutoIt3ExecuteScript] file
[params ...]
Execute an AutoIt3 Script File
/ErrorStdOut Allows to redirect fatal error to StdOut which can be captured by an application as Scite editor. This switch can be used with a compiled script.
To execute a standard AutoIt Script File 'myscript.au3', use the command:
'AutoIt3.exe myscript.au3'
Form2: Compiled.exe [/ErrorStdOut] [params ...]
Execute an compiled AutoIt3 Script File produced with Aut2Exe.
Form3: Compiled.exe [/ErrorStdOut] [/AutoIt3ExecuteScript file]
[params ...]
Execute another script file from a compiled AutoIt3 Script File. Then you don't need to fileinstall another copy of AutoIT3.exe in your compiled file.
Form4: AutoIt3.exe [/ErrorStdOut] /AutoIt3ExecuteLine "command line"
Execute one line of code.
To execute a single line of code, use the command:
Run(#AutoItExe & ' /AutoIt3ExecuteLine "MsgBox(0, ''Hello World!'', ''Hi!'')"')

You have to expose your AutoIt Function to other applications. This could be done easily with AutoItObject, which can register an object in the ROT.
The AutoIt Code would be:
#include <AutoItObject.au3>
$oObject = _AutoItObject_Create()
_AutoItObject_RegisterObject($oObject, 'MyVery.CustomApplication')
_AutoItObject_AddMethod($oObject, '_my_custom_function', '_my_custom_function')
While Sleep(100)
WEnd
Func _my_custom_function($oSelf)
MsgBox(0, '', 'AutoIt says Hi')
Exit
EndFunc
The Python Code should be:
from win32com.client import Dispatch
Auto = Dispatch("MyVery.CustomApplication")
Auto._my_custom_function()

Python - How do you run a .py file?

I've looked all around Google and its archives. There are several good articles, but none seem to help me out. So I thought I'd come here for a more specific answer.
The Objective: I want to run this code on a website to get all the picture files at once. It'll save a lot of pointing and clicking.
I've got Python 2.3.5 on a Windows 7 x64 machine. It's installed in C:\Python23.
How do I get this script to "go", so to speak?
=====================================
WOW. 35k views. Seeing as how this is top result on Google, here's a useful link I found over the years:
http://learnpythonthehardway.org/book/ex1.html
For setup, see exercise 0.
=====================================
FYI: I've got zero experience with Python. Any advice would be appreciated.
As requested, here's the code I'm using:
"""
dumpimages.py
Downloads all the images on the supplied URL, and saves them to the
specified output file ("/test/" by default)
Usage:
python dumpimages.py http://example.com/ [output]
"""
from BeautifulSoup import BeautifulSoup as bs
import urlparse
from urllib2 import urlopen
from urllib import urlretrieve
import os
import sys
def main(url, out_folder="C:\asdf\"):
"""Downloads all the images at 'url' to /test/"""
soup = bs(urlopen(url))
parsed = list(urlparse.urlparse(url))
for image in soup.findAll("img"):
print "Image: %(src)s" % image
filename = image["src"].split("/")[-1]
parsed[2] = image["src"]
outpath = os.path.join(out_folder, filename)
if image["src"].lower().startswith("http"):
urlretrieve(image["src"], outpath)
else:
urlretrieve(urlparse.urlunparse(parsed), outpath)
def _usage():
print "usage: python dumpimages.py http://example.com [outpath]"
if __name__ == "__main__":
url = sys.argv[-1]
out_folder = "/test/"
if not url.lower().startswith("http"):
out_folder = sys.argv[-1]
url = sys.argv[-2]
if not url.lower().startswith("http"):
_usage()
sys.exit(-1)
main(url, out_folder)

On windows platform, you have 2 choices:
In a command line terminal, type
c:\python23\python xxxx.py
Open the python editor IDLE from the menu, and open xxxx.py, then press F5 to run it.
For your posted code, the error is at this line:
def main(url, out_folder="C:\asdf\"):
It should be:
def main(url, out_folder="C:\\asdf\\"):

Usually you can double click the .py file in Windows explorer to run it. If this doesn't work, you can create a batch file in the same directory with the following contents:
C:\python23\python YOURSCRIPTNAME.py
Then double click that batch file. Or, you can simply run that line in the command prompt while your working directory is the location of your script.

Since you seem to be on windows you can do this so python <filename.py>. Check that python's bin folder is in your PATH, or you can do c:\python23\bin\python <filename.py>. Python is an interpretive language and so you need the interpretor to run your file, much like you need java runtime to run a jar file.

use IDLE Editor {You may already have it} it has interactive shell for python and it will show you execution and result.

Your command should include the url parameter as stated in the script usage comments.
The main function has 2 parameters, url and out (which is set to a default value)
C:\python23\python "C:\PathToYourScript\SCRIPT.py" http://yoururl.com "C:\OptionalOutput\"

If you want to run .py files in Windows, Try installing Git bash
Then download python(Required Version) from python.org and install in the main c drive folder
For me, its :
"C:\Python38"
then open Git Bash and go to the respective folder where your .py file is stored :
For me, its :
File Location : "Downloads"
File Name : Train.py
So i changed my Current working Directory From "C:/User/(username)/" to "C:/User/(username)/Downloads"
then i will run the below command
" /c/Python38/python Train.py "
and it will run successfully.
But if it give the below error :
from sklearn.model_selection import train_test_split
ModuleNotFoundError: No module named 'sklearn'
Then Do not panic :
and use this command :
" /c/Python38/Scripts/pip install sklearn "
and after it has installed sklearn go back and run the previous command :
" /c/Python38/python Train.py "
and it will run successfully.
!!!!HAPPY LEARNING !!!!