#1 check if you have an OLD python installation and remove it properly (including old environment vars, path ..)
#2 i would recommend you, if possible, upgrading your python installation to the last one 3.8.x +
#3 your problem is very common: your environment variables are NOT correctly set:
- go to
Advanced tab under System Properties and click Environment Variables
- Under
System Variables create those variables:
APACHE_HOME = C:\wamp\bin\apache\apache2.4.23 (i'm using WAMPSERVER)MOD_WSGI_APACHE_ROOTDIR = %APACHE_HOME% (since you are using mod_wsgi, check official doc on pypi)PYTHON_HOME = C:\Python37 (it depends on your python installation)
- go to
User variables and add/append variables to PATH like so:
PATH = %APACHE_HOME%\bin;%MOD_WSGI_APACHE_ROOTDIR%;%PYTHON_HOME%;%PYTHON_HOME%\Scripts;
#4 open new console and check your python installation:
#5 create a simple flask app to make sure everything is working as expected
#6 to deploy the app on Apache server, have look at this flask doc and the official mod_wsgi doc
- you have to install
mod_wsgi GLOBALLY, meaning you have to deactivate first your virtual environment of your current active application.
(venv) C:\myapps\flask\helloflask>deactivate (i'm using venv the standard and default python virtual environment py -m venv venv)C:\myapps\flask\helloflask>pip install mod_wsgiC:\myapps\flask\helloflask>pip list
#7 configure mod_wsgi in Apache Server
- check if
mod_wsgi is correctly installed and configured
C:\myapps\flask\helloflask>mod_wsgi-express --help
Usage: mod_wsgi-express command [params]
Commands:
module-config
module-location
mod_wsgi-express: error: Invalid command was specified.
mod_wsgi-express module-config
- the output of the command should be like the following (depending on your system and python installation):
WSGIPythonHome "c:/python37"
LoadFile "c:/python37/python37.dll"
loadmodule wsgi_module "c:/python37/lib/site-packages/mod_wsgi/server/mod_wsgi.cp37-win32.pyd"
- Copy the output of the above command and paste it in
C:\wamp\bin\apache\apache2.4.23\conf. To make things consistent, locate the section where Modules are listed and add it at the very end of the list.
#8 create wsgi.py under the root of your project and paste the code (it's self-explanatory)
import os
import sys
# activate virtualenv
PROJECT = "helloflask"
# i'm using py -m venv venv
# @see: https://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html
# @see: https://stackoverflow.com/questions/25020451/no-activate-this-py-file-in-venv-pyvenv
activate_this = os.path.join('C:/myapps/flask', PROJECT, 'venv/Scripts/activate_this.py')
with open(activate_this) as file_:
exec(file_.read(), dict(__file__=activate_this))
BASE_DIR = os.path.join(os.path.dirname(__file__))
if BASE_DIR not in sys.path:
sys.path.append(BASE_DIR)
from helloflask import create_app
application = create_app()
#9 Configure a Virtual Host for the Flask App
<VirtualHost *:80>
ServerName helloflask.local
DocumentRoot "C:/myapps/flask/helloflask"
WSGIScriptAlias / "C:/myapps/flask/helloflask/wsgi.py"
<Directory "C:/myapps/flask/helloflask">
Require all granted
</Directory>
# app = Flask(
# __name__,
# static_url_path='/public/static',
# static_folder='static'
# )
# Alias /public/static "C:/myapps/flask/helloflask/public/static"
# <Directory "C:/myapps/flask/helloflask/public/static">
# Require all granted
# </Directory>
ErrorLog "C:/wamp/logs/helloflask.error.log"
CustomLog "C:/wamp/logs/helloflask.access.log" common
</VirtualHost>
#10 check your Apache configuration
httpd -t
if it's OK, restart your Apache server
